Security, Identity & Compliance | AWS Identity and Access Management (IAM) Flashcards

Question 1

Q

What is AWS Identity and Access Management (IAM)?

General

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

You can use AWS IAM to securely control individual and group access to your AWS resources. You can create and manage user identities (“IAM users”) and grant permissions for those IAM users to access your resources. You can also grant permissions for users outside of AWS (federated users).

Question 2

Q

How do I get started with IAM?

General

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

To start using IAM, you must subscribe to at least one of the AWS services that is integrated with IAM. You then can create and manage users, groups, and permissions via IAM APIs, the AWS CLI, or the IAM console, which gives you a point-and-click, web-based interface. You can also use the visual editor to create policies.

Question 3

Q

What problems does IAM solve?

General

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

IAM makes it easy to provide multiple users secure access to your AWS resources. IAM enables you to:

Manage IAM users and their access: You can create users in AWS’s identity management system, assign users individual security credentials (such as access keys, passwords, multi-factor authentication devices), or request temporary security credentials to provide users access to AWS services and resources. You can specify permissions to control which operations a user can perform.

Manage access for federated users: You can request security credentials with configurable expirations for users who you manage in your corporate directory, allowing you to provide your employees and applications secure access to resources in your AWS account without creating an IAM user account for them. You specify the permissions for these security credentials to control which operations a user can perform.

Question 4

Q

Who can use IAM?

General

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

Any AWS customer can use IAM. The service is offered at no additional charge. You will be charged only for the use of other AWS services by your users.

Question 5

Q

What is a user?

General

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

A user is a unique identity recognized by AWS services and applications. Similar to a login user in an operating system like Windows or UNIX, a user has a unique name and can identify itself using familiar security credentials such as a password or access key. A user can be an individual, system, or application requiring access to AWS services. IAM supports users (referred to as “IAM users”) managed in AWS’s identity management system, and it also enables you to grant access to AWS resources for users managed outside of AWS in your corporate directory (referred to as “federated users”).

Question 6

Q

What can a user do?

General

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

A user can place requests to web services such as Amazon S3 and Amazon EC2. A user’s ability to access web service APIs is under the control and responsibility of the AWS account under which it is defined. You can permit a user to access any or all of the AWS services that have been integrated with IAM and to which the AWS account has subscribed. If permitted, a user has access to all of the resources under the AWS account. In addition, if the AWS account has access to resources from a different AWS account, its users may be able to access data under those AWS accounts. Any AWS resources created by a user are under control of and paid for by its AWS account. A user cannot independently subscribe to AWS services or control resources.

Question 7

Q

How do users call AWS services?

General

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

Users can make requests to AWS services using security credentials. Explicit permissions govern a user’s ability to call AWS services. By default, users have no ability to call service APIs on behalf of the account.

Question 8

Q

How do I get started with IAM?

IAM User Management

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

To start using IAM, you must subscribe to at least one of the AWS services that is integrated with IAM. You then can create and manage users, groups, and permissions via IAM APIs, the AWS CLI, or the IAM console, which gives you a point-and-click, web-based interface. You can also use the AWS Policy Generator to create policies.

Question 9

Q

How are IAM users managed?

IAM User Management

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

IAM supports multiple methods to:

Create and manage IAM users.

Create and manage IAM groups.

Manage users’ security credentials.

Create and manage policies to grant access to AWS services and resources.

You can create and manage users, groups, and policies by using IAM APIs, the AWS CLI, or the IAM console. You also can use the visual editor and the IAM policy simulator to create and test policies.

Question 10

Q

What is a group?

IAM User Management

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

A group is a collection of IAM users. Manage group membership as a simple list:

Add users to or remove them from a group.

A user can belong to multiple groups.

Groups cannot belong to other groups.

Groups can be granted permissions using access control policies. This makes it easier to manage permissions for a collection of users, rather than having to manage permissions for each individual user.

Groups do not have security credentials, and cannot access web services directly; they exist solely to make it easier to manage user permissions. For details, see Working with Groups and Users.

Question 11

Q

What kinds of security credentials can IAM users have?

IAM User Management

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

IAM users can have any combination of credentials that AWS supports, such as an AWS access key, X.509 certificate, SSH key, password for web app logins, or an MFA device. This allows users to interact with AWS in any manner that makes sense for them. An employee might have both an AWS access key and a password; a software system might have only an AWS access key to make programmatic calls; IAM users might have a private SSH key to access AWS CodeCommit repositories; and an outside contractor might have only an X.509 certificate to use the EC2 command-line interface. For details, see Temporary Security Credentials in the IAM documentation.

Question 12

Q

Which AWS services support IAM users?

IAM User Management

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

You can find the complete list of AWS services that support IAM users in the AWS Services That Work with IAM section of the IAM documentation. AWS plans to add support for other services over time.

Question 13

Q

Can I enable and disable user access?

IAM User Management

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

Yes. You can enable and disable an IAM user’s access keys via the IAM APIs, AWS CLI, or IAM console. If you disable the access keys, the user cannot programmatically access AWS services.

Question 14

Q

Who is able to manage users for an AWS account?

IAM User Management

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

The AWS account holder can manage users, groups, security credentials, and permissions. In addition, you may grant permissions to individual users to place calls to IAM APIs in order to manage other users. For example, an administrator user may be created to manage users for a corporation—a recommended practice. When you grant a user permission to manage other users, they can do this via the IAM APIs, AWS CLI, or IAM console.

Question 15

Q

Can I structure a collection of users in a hierarchical way, such as in LDAP?

IAM User Management

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

Yes. You can organize users and groups under paths, similar to object paths in Amazon S3—for example /mycompany/division/project/joe.

Question 16

Q

Can I define users regionally?

IAM User Management

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

Not initially. Users are global entities, like an AWS account is today. No region is required to be specified when you define user permissions. Users can use AWS services in any geographic region.

Question 17

Q

How are MFA devices configured for IAM users?

IAM User Management

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

You (the AWS account holder) can order multiple MFA devices. You can then assign these devices to individual IAM users via the IAM APIs, AWS CLI, or IAM console.

Question 18

Q

What kind of key rotation is supported for IAM users?

IAM User Management

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

User access keys and X.509 certificates can be rotated just as they are for an AWS account’s root access identifiers. You can manage and rotate programmatically a user’s access keys and X.509 certificates via the IAM APIs, AWS CLI, or IAM console.

Question 19

Q

Can IAM users have individual EC2 SSH keys?

IAM User Management

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

Not in the initial release. IAM does not affect EC2 SSH keys or Windows RDP certificates. This means that although each user has separate credentials for accessing web service APIs, they must share SSH keys that are common across the AWS account under which users have been defined.

Question 20

Q

Where can I use my SSH keys?

IAM User Management

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

Currently, IAM users can use their SSH keys only with AWS CodeCommit to access their repositories.

Question 21

Q

Do IAM user names have to be email addresses?

IAM User Management

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

No, but they can be. User names are just ASCII strings that are unique within a given AWS account. You can assign names using any naming convention you choose, including email addresses.

Question 22

Q

Which character sets can I use for IAM user names?

IAM User Management

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

You can only use ASCII characters for IAM entities.

Question 23

Q

Are user attributes other than user name supported?

IAM User Management

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

Not at this time.

Question 24

Q

How are user passwords set?

IAM User Management

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

You can set an initial password for an IAM user via the IAM console, AWS CLI, or IAM APIs. User passwords never appear in clear text after the initial provisioning, and are never displayed or returned via an API call. IAM users can manage their passwords via the My Password page in the IAM console. Users access this page by selecting the Security Credentials option from the drop-down list in the upper right corner of the AWS Management Console.

Question 25

Q

Can I define a password policy for my user’s passwords?

IAM User Management

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

Yes, you can enforce strong passwords by requiring minimum length or at least one number. You can also enforce automatic password expiration, prevent re-use of old passwords, and require a password reset upon the next AWS sign-in. For details, see Setting an Account Policy Password for IAM Users.

Question 26

Q

Can I set usage quotas on IAM users?

IAM Role Management

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

No. All limits are on the AWS account as a whole. For example, if your AWS account has a limit of 20 Amazon EC2 instances, IAM users with EC2 permissions can start instances up to the limit. You cannot limit what an individual user can do.

Question 27

Q

What is an IAM role?

IAM Role Management

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

An IAM role is an IAM entity that defines a set of permissions for making AWS service requests. IAM roles are not associated with a specific user or group. Instead, trusted entities assume roles, such as IAM users, applications, or AWS services such as EC2.

Question 28

Q

What problems do IAM roles solve?

IAM Role Management

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

IAM roles allow you to delegate access with defined permissions to trusted entities without having to share long-term access keys. You can use IAM roles to delegate access to IAM users managed within your account, to IAM users under a different AWS account, or to an AWS service such as EC2.

Question 29

Q

How do I get started with IAM roles?

IAM Role Management

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

You create a role in a way similar to how you create a user—name the role and attach a policy to it. For details, see Creating IAM Roles.

Question 30

Q

How do I assume an IAM role?

IAM Role Management

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

You assume an IAM role by calling the AWS Security Token Service (STS) AssumeRole APIs (in other words, AssumeRole, AssumeRoleWithWebIdentity, and AssumeRoleWithSAML). These APIs return a set of temporary security credentials that applications can then use to sign requests to AWS service APIs.

Question 31

Q

How many IAM roles can I assume?

IAM Role Management

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

There is no limit to the number of IAM roles you can assume, but you can only act as one IAM role when making requests to AWS services.

Question 32

Q

Who can use IAM roles?

IAM Role Management

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

Any AWS customer can use IAM roles.

Question 33

Q

How much do IAM roles cost?

IAM Role Management

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

IAM roles are free of charge. You will continue to pay for any resources a role in your AWS account consumes.

Question 34

Q

How are IAM roles managed?

IAM Role Management

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

You can create and manage IAM roles via the IAM APIs, AWS CLI, or IAM console, which gives you a point-and-click, web-based interface.

Question 35

Q

What is the difference between an IAM role and an IAM user?

IAM Role Management

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

An IAM user has permanent long-term credentials and is used to directly interact with AWS services. An IAM role does not have any credentials and cannot make direct requests to AWS services. IAM roles are meant to be assumed by authorized entities, such as IAM users, applications, or an AWS service such as EC2.

Question 36

Q

When should I use an IAM user, IAM group, or IAM role?

IAM Role Management

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

An IAM user has permanent long-term credentials and is used to directly interact with AWS services. An IAM group is primarily a management convenience to manage the same set of permissions for a set of IAM users. An IAM role is an AWS Identity and Access Management (IAM) entity with permissions to make AWS service requests. IAM roles cannot make direct requests to AWS services; they are meant to be assumed by authorized entities, such as IAM users, applications, or AWS services such as EC2. Use IAM roles to delegate access within or between AWS accounts.

Question 37

Q

Can I add an IAM role to an IAM group?

IAM Role Management

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

Not at this time.

Question 38

Q

How many policies can I attach to an IAM role?

IAM Role Management

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

For inline policies: You can add as many inline policies as you want to a user, role, or group, but the total aggregate policy size (the sum size of all inline policies) per entity cannot exceed the following limits:

User policy size cannot exceed 2,048 characters.

Role policy size cannot exceed 10,240 characters.

Group policy size cannot exceed 5,120 characters.

For managed policies: You can add up to 10 managed policies to a user, role, or group. The size of each managed policy cannot exceed 6,144 characters.

Question 39

Q

How many IAM roles can I create?

IAM Role Management

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

You are limited to 1,000 IAM roles under your AWS account. If you need more roles, submit the IAM limit increase request form with your use case, and we will consider your request.

Question 40

Q

To which services can my application make requests?

IAM Role Management

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

Your application can make requests to all AWS services that support role sessions.

Question 41

Q

What is IAM roles for EC2 instances?

IAM Role Management

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

IAM roles for EC2 instances enables your applications running on EC2 to make requests to AWS services such as Amazon S3, Amazon SQS, and Amazon SNS without you having to copy AWS access keys to every instance. For details, see IAM Roles for Amazon EC2.

Question 42

Q

What are the features of IAM roles for EC2 instances?

IAM Role Management

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

IAM roles for EC2 instances provides the following features:

AWS temporary security credentials to use when making requests from running EC2 instances to AWS services.

Automatic rotation of the AWS temporary security credentials.

Granular AWS service permissions for applications running on EC2 instances.

Question 43

Q

What problem does IAM roles for EC2 instances solve?

IAM Role Management

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

IAM roles for EC2 instances simplifies management and deployment of AWS access keys to EC2 instances. Using this feature, you associate an IAM role with an instance. Then your EC2 instance provides the temporary security credentials to applications running on the instance, and the applications can use these credentials to make requests securely to the AWS service resources defined in the role.

Question 44

Q

How do I get started with IAM roles for EC2 instances?

IAM Role Management

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

To understand how roles work with EC2 instances, you need to use the IAM console to create a role, launch an EC2 instance that uses that role, and then examine the running instance. You can examine the instance metadata to see how the role credentials are made available to an instance. You can also see how an application that runs on an instance can use the role. For more details, see How Do I Get Started?

Question 45

Q

Can I use the same IAM role on multiple EC2 instances?

IAM Role Management

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Question 46

Q

Can I change the IAM role on a running EC2 instance?

IAM Role Management

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

Yes. Although a role is usually assigned to an EC2 instance when you launch it, a role can also be assigned to an EC2 instance that is already running. To learn how to assign a role to a running instance, see IAM Roles for Amazon EC2. You can also change the permissions on the IAM role associated with a running instance, and the updated permissions take effect almost immediately.

Question 47

Q

Can I associate an IAM role with an already running EC2 instance?

IAM Role Management

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

Yes. You can assign a role to an EC2 instance that is already running. To learn how to assign a role to an already running instance, see IAM Roles for Amazon EC2.

Question 48

Q

Can I associate an IAM role with an Auto Scaling group?

IAM Role Management

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

Yes. You can add an IAM role as an additional parameter in an Auto Scaling launch configuration and create an Auto Scaling group with that launch configuration. All EC2 instances launched in an Auto Scaling group that is associated with an IAM role are launched with the role as an input parameter. For more details, see What Is Auto Scaling? in the Auto Scaling Developer Guide.

Question 49

Q

Can I associate more than one IAM role with an EC2 instance?

IAM Role Management

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

No. You can only associate one IAM role with an EC2 instance at this time. This limit of one role per instance cannot be increased.

Question 50

Q

What happens if I delete an IAM role that is associated with a running EC2 instance?

IAM Role Management

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

Any application running on the instance that is using the role will be denied access immediately.

Question 51

Q

Can I control which IAM roles an IAM user can associate with an EC2 instance?

IAM Role Management

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

Yes. For details, see Permissions Required for Using Roles with Amazon EC2.

Question 52

Q

Which permissions are required to launch EC2 instances with an IAM role?

IAM Role Management

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

You must grant an IAM user two distinct permissions to successfully launch EC2 instances with roles:

Permission to launch EC2 instances.

Permission to associate an IAM role with EC2 instances.

For details, see Permissions Required for Using Roles with Amazon EC2.

Question 53

Q

Who can access the access keys on an EC2 instance?

IAM Role Management

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

Any local user on the instance can access the access keys associated with the IAM role.

Question 54

Q

How do I use the IAM role with my application on the EC2 instance?

IAM Role Management

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

If you develop your application with the AWS SDK, the AWS SDK automatically uses the AWS access keys that have been made available on the EC2 instance. If you are not using the AWS SDK, you can retrieve the access keys from the EC2 instance metadata service. For details, see Using an IAM Role to Grant Permissions to Applications Running on Amazon EC2 Instances.

Question 55

Q

How do I rotate the temporary security credentials on the EC2 instance?

IAM Role Management

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

The AWS temporary security credentials associated with an IAM role are automatically rotated multiple times a day. New temporary security credentials are made available no later than five minutes before the existing temporary security credentials expire.

Question 56

Q

Can I use IAM roles for EC2 instances with any instance type or Amazon Machine Image?

IAM Role Management

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

Yes. IAM roles for EC2 instances also work in Amazon Virtual Private Cloud (VPC), with spot and reserved instances.

Question 57

Q

What is a service-linked role?

IAM Role Management

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

A service-linked role is a type of role that links to an AWS service (also known as a linked service) such that only the linked service can assume the role. Using these roles, you can delegate permissions to AWS services to create and manage AWS resources on your behalf.

Question 58

Q

Can I assume a service-linked role?

IAM Role Management

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

No. A service-linked role can be assumed only by the linked service. This is the reason why the trust policy of a service-linked role cannot be modified.

Question 59

Q

Can I delete a service-linked role?

IAM Role Management

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

Yes. If you no longer want an AWS service to perform actions on your behalf, you can delete its service-linked role. Before you delete the role, you must delete all AWS resources that depend on the role. This step ensures that you do not inadvertently delete a role required for your AWS resources to function properly.

Question 60

Q

How do I delete a service-linked role?

Permissions

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

You can delete a service-linked role from the IAM console. Choose Roles in the navigation pane, choose the service-linked role that you want to delete, and choose Delete role. (Note: For Amazon Lex, you must use the Amazon Lex console to delete the service-linked role.)

Question 61

Q

How do permissions work?

Permissions

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

Access control policies are attached to users, groups, and roles to assign permissions to AWS resources. By default, IAM users, groups, and roles have no permissions; users with sufficient permissions must use a policy to grant the desired permissions.

Question 62

Q

How do I assign permissions using a policy?

Permissions

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

To set permissions, you can create and attach policies using the AWS Management Console, the IAM API, or the AWS CLI. Users who have been granted the necessary permissions can create policies and assign them to IAM users, groups, and roles.

Question 63

Q

What are managed policies?

Permissions

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

Managed policies are IAM resources that express permissions using the IAM policy language. You can create, edit, and manage separately from the IAM users, groups, and roles to which they are attached. After you attach a managed policy to multiple IAM users, groups, or roles, you can update that policy in one place and the permissions automatically extend to all attached entities. Managed policies are managed either by you (these are called customer managed policies) or by AWS (these are called AWS managed policies). For more information about managed policies, see Managed Policies and Inline Policies.

Question 64

Q

How do I create a customer managed policy?

Permissions

AWS Identity and Access Management (IAM) | Security, Identity & Compliance

Answer

A

You can use the visual editor or the JSON editor in the IAM console. The visual editor is a point-and-click editor that guides you through the process of granting permissions in a policy without requiring you to write the policy in JSON. You can create policies in JSON by using the CLI and SDK.

Answer 64

A

AWS provides a set of commonly used permissions that you can attach to IAM users, groups, and roles in your account. These are called AWS managed policies. One example is read-only access for Amazon S3. When AWS updates these policies, the permissions are applied automatically to the users, groups, and roles to which the policy is attached. AWS managed policies automatically appear in the Policies section of the IAM console. When you assign permissions, you can use an AWS managed policy or you can create your own customer managed policy. Create a new policy based on an existing AWS managed policy, or define your own.

Answer 65

A

Use IAM groups to assign the same set of permissions to multiple IAM users. A user can also have individual permissions assigned to them. The two ways to attach permissions to users work together to set overall permissions.

Answer 66

A

Use IAM groups to collect IAM users and define common permissions for those users. Use managed policies to share permissions across IAM users, groups, and roles. For example, if you want a group of users to be able to launch an Amazon EC2 instance, and you also want the role on that instance to have the same permissions as the users in the group, you can create a managed policy and assign it to the group of users and the role on the Amazon EC2 instance.

Answer 67

A

IAM policies are evaluated together with the service’s resource-based policies. When a policy of any type grants access (without explicitly denying it), the action is allowed. For more information about the policy evaluation logic, see IAM Policy Evaluation Logic.

Answer 68

A

Managed policies can only be attached to IAM users, groups, or roles. You cannot use them as resource-based policies.

Answer 69

A

Using policies, you can specify several layers of permission granularity. First, you can define specific AWS service actions you wish to allow or explicitly deny access to. Second, depending on the action, you can define specific AWS resources the actions can be performed on. Third, you can define conditions to specify when the policy is in effect (for example, if MFA is enabled or not).

Answer 70

A

To help you determine which permissions are needed, the IAM console now displays service last accessed data that shows the hour when an IAM entity (a user, group, or role) last accessed an AWS service. Knowing if and when an IAM entity last exercised a permission can help you remove unnecessary permissions and tighten your IAM policies with less effort.

Answer 71

A

Yes, you can delegate the ability for an IAM user or a federated user to view AWS billing data and modify AWS account information. For more information about controlling access to your billing information, see Controlling Access.

Answer 72

A

Only the AWS account owner can manage the access keys for the root account. The account owner and IAM users or roles that have been granted the necessary permissions can manage access keys for IAM users.

Answer 73

A

Yes. Using IAM roles, IAM users and federated users can access resources in another AWS account via the AWS Management Console, the AWS CLI, or the APIs. See Manage IAM Roles for more information.

Answer 74

A

The following policy grants access to add, update, and delete objects from a specific folder, example_folder, in a specific bucket, example_bucket.

{

“Version”:”2012-10-17”,

“Statement”:[

{

“Effect”:”Allow”,

“Action”:[

“s3:PutObject”,

“s3:GetObject”,

“s3:GetObjectVersion”,

“s3:DeleteObject”,

“s3:DeleteObjectVersion”

],

“Resource”:”arn:aws:s3:::example_bucket/example_folder/*”

}

]

}

Answer 75

A

If you are using the IAM console and choose a policy, you will see a policy summary. A policy summary lists the access level, resources, and conditions for each service defined in a policy (see the following screenshot for an example). The access level (View, Read, Write, or Permissions management) is defined by actions granted for each service in the policy. You can view the policy in JSON by choosing the JSON button.

Screenshot of a policy summary

Answer 76

A

The IAM policy simulator is a tool to help you understand, test, and validate the effects of your access control policies.

Answer 77

A

You can use the policy simulator in several ways. You can test policy changes to ensure they have the desired effect before committing them to production. You can validate existing policies attached to users, groups, and roles to verify and troubleshoot permissions. You can also use the policy simulator to understand how IAM policies and resource-based policies work together to grant or deny access to AWS resources.

Answer 78

A

The policy simulator is available to all AWS customers.

Answer 79

A

The policy simulator is available at no extra cost.

Answer 80

A

Go to https://policysim.aws.amazon.com, or click the link on the IAM console under “Additional Information.” Specify a new policy or choose an existing set of policies from a user, group, or role that you’d like to evaluate. Then select a set of actions from the list of AWS services, provide any required information to simulate the access request, and run the simulation to determine whether the policy allows or denies permissions to the selected actions and resources. To learn more about the IAM policy simulator, watch our Getting Started video or see the documentation.

Answer 81

A

The policy simulator supports testing of newly entered policies and existing policies attached to users, groups, or roles. In addition, you can simulate whether resource-level policies grant access to a particular resource for Amazon S3 buckets, Amazon Glacier vaults, Amazon SNS topics, and Amazon SQS queues. These are included in the simulation when an Amazon Resource Name (ARN) is specified in the Resource field in Simulation Settings for a service that supports resource policies.

Answer 82

A

No. To apply changes to production, copy the policy that you’ve modified in the policy simulator and attach it to the desired IAM user, group, or role.

Answer 83

A

Yes. You can use the policy simulator using the AWS SDKs or AWS CLI in addition to the policy simulator console. Use the iam:SimulatePrincipalPolicy API to programmatically test your existing IAM policies. To test the effects of new or updated policies that are not yet attached to a user, group, or role, call the iam:SimulateCustomPolicy API.

Answer 84

A

To sign in to the AWS Management Console as an IAM user, you must provide your account ID or account alias in addition to your user name and password. When your administrator created your IAM user in the console, they should have provided you with your user name and the URL to your account sign-in page. That URL includes your account ID or account alias.

https://My_AWS_Account_ID.signin.aws.amazon.com/console/

You can also sign in at the following general sign-in endpoint and type your account ID or account alias manually:

https://console.aws.amazon.com/

For convenience, the AWS sign-in page uses a browser cookie to remember the IAM user name and account information. The next time the user goes to any page in the AWS Management Console, the console uses the cookie to redirect the user to the account sign-in page.

Note: IAM users can still use the URL link provided to them by their administrator to sign in to the AWS Management Console.

Answer 85

A

The account alias is a name you define to make it more convenient to identify your account. You can create an alias using the IAM APIs, AWS Command Line Tools, or the IAM console. You can have one alias per AWS account.

Answer 86

A

IAM users can sign in to the following AWS sites:

AWS Management Console

AWS Forums

AWS Support Center

AWS Marketplace

Answer 87

A

No. Users created with IAM are recognized only by AWS services and applications.

Answer 88

A

No. There is no programmatic way to verify user sign-ins.

Answer 89

A

No. User security credentials created with IAM are not supported for direct authentication to customer EC2 instances. Managing EC2 SSH credentials is the customer’s responsibility within the EC2 console.

Answer 90

A

Temporary security credentials consist of the AWS access key ID, secret access key, and security token. Temporary security credentials are valid for a specified duration and for a specific set of permissions. Temporary security credentials are sometimes simply referred to as tokens. Tokens can be requested for IAM users or for federated users you manage in your own corporate directory. For more information, see Common Scenarios for Temporary Credentials.

Answer 91

A

Temporary security credentials allow you to:

Extend your internal user directories to enable federation to AWS, enabling your employees and applications to securely access AWS service APIs without needing to create an AWS identity for them.

Request temporary security credentials for an unlimited number of federated users.

Configure the time period after which temporary security credentials expire, offering improved security when accessing AWS service APIs through mobile devices where there is a risk of losing the device.

Answer 92

A

You can call the GetFederationToken, AssumeRole, AssumeRoleWithSAML, or AssumeRoleWithWebIdentity STS APIs.

Answer 93

A

IAM users can request temporary security credentials for their own use by calling the AWS STS GetSessionToken API. The default expiration for these temporary credentials is 12 hours; the minimum is 15 minutes, and the maximum is 36 hours.

You can also use temporary credentials with Multi-Factor Authentication (MFA)-Protected API Access.

Answer 94

A

If you’re making direct HTTPS API requests to AWS, you can sign those requests with the temporary security credentials that you get from AWS Security Token Service (AWS STS). To do this, do the following:

Use the access key ID and secret access key that are provided with the temporary security credentials the same way you would use long-term credentials to sign a request. For more information about signing HTTPS API requests, see Signing AWS API Requests in the AWS General Reference.

Use the session token that is provided with the temporary security credentials. Include the session token in the “x-amz-security-token” header. See the following example request.

For Amazon S3, via the “x-amz- security-token” HTTP header.

For other AWS services, via the SecurityToken parameter.

Answer 95

A

For a list of supported services, see AWS Services That Work with IAM.

Answer 96

A

The policy plaintext must be 2048 bytes or shorter. However, an internal conversion compresses it into a packed binary format with a separate limit.

Answer 97

A

No. When requesting temporary credentials, we recommend the following:

When creating temporary security credentials, set the expiration to a value that is appropriate for your application.

Because root account permissions cannot be restricted, use an IAM user and not the root account for creating temporary security credentials. You can revoke permissions of the IAM user that issued the original call to request it. This action almost immediately revokes privileges for all temporary security credentials issued by that IAM user

Answer 98

A

No. It is a good practice to actively check the expiration and request a new temporary security credential before the old one expires. This rotation process is automatically managed for you when temporary security credentials are used in roles for EC2 instances.

Answer 99

A

Customers can request tokens from AWS STS endpoints in all regions, including AWS GovCloud (US) and China (Beijing) regions. Temporary credentials from AWS GovCloud (US) and China (Beijing) can be used only in the region from which they originated. Temporary credentials requested from any other region such as US East (N. Virginia) or EU (Ireland) can be used in all regions except AWS GovCloud (US) and China (Beijing).

Answer 100

A

No. You cannot restrict the temporary security credentials to a particular region or subset of regions, except the temporary security credentials from AWS GovCloud (US) and China (Beijing), which can be used only in the respective regions from which they originated.

Answer 101

A

AWS STS endpoints are active by default in all regions and you can start using them without any further actions.

Answer 102

A

If you attempt to use a regional AWS STS endpoint that has been deactivated for your AWS account, you will see an AccessDenied exception from AWS STS with the following message: “AWS STS is not activated in this region for account: AccountID. Your account administrator can activate AWS STS in this region using the IAM console.”

Answer 103

A

Only users with at least iam:* permissions can activate or deactivate AWS STS regions from the Account Settings page in the IAM console. Note that the AWS STS endpoints in US East (N. Virginia), AWS GovCloud (US), and China (Beijing) regions are always active and cannot be deactivated.

Answer 104

A

No. There is no API or CLI support at this time to activate or deactivate AWS STS regions. We plan to provide API and CLI support in a future release.

Answer 105

A

AWS Identity and Access Management (IAM) supports identity federation for delegated access to the AWS Management Console or AWS APIs. With identity federation, external identities are granted secure access to resources in your AWS account without having to create IAM users. These external identities can come from your corporate identity provider (such as Microsoft Active Directory or from the AWS Directory Service) or from a web identity provider (such as Amazon Cognito, Login with Amazon, Facebook, Google, or any OpenID Connect-compatible provider).

Answer 106

A

Federated users (external identities) are users you manage outside of AWS in your corporate directory, but to whom you grant access to your AWS account using temporary security credentials. They differ from IAM users, which are created and maintained in your AWS account.

Answer 107

A

Yes, AWS supports the Security Assertion Markup Language (SAML) 2.0.

Answer 108

A

The AWS single sign-on (SSO) endpoint supports the IdP-initiated HTTP-POST binding WebSSO SAML Profile. This enables a federated user to sign in to the AWS Management Console using a SAML assertion. A SAML assertion can also be used to request temporary security credentials using the AssumeRoleWithSAML API. For more information, see About SAML 2.0-Based Federation.

Answer 109

A

Yes. You can programmatically request temporary security credentials for your federated users to provide them secure and direct access to AWS APIs. We have provided a sample application that demonstrates how you can enable identity federation, providing users maintained by Microsoft Active Directory access to AWS service APIs. For more information, see Using Temporary Security Credentials to Request Access to AWS Resources.

Answer 110

A

Yes. There are a couple ways to achieve this. One way is by programmatically requesting temporary security credentials (such as GetFederationToken or AssumeRole) for your federated users and including those credentials as part of the sign-in request to the AWS Management Console. After you have authenticated a user and granted them temporary security credentials, you generate a sign-in token that is used by the AWS single sign-on (SSO) endpoint. The user’s actions in the console are limited to the access control policy associated with the temporary security credentials. For more details, see Creating a URL that Enables Federated Users to Access the AWS Management Console (Custom Federation Broker).

Alternatively, you can post a SAML assertion directly to AWS sign-in (https://signin.aws.amazon.com/saml). The user’s actions in the console are limited to the access control policy associated with the IAM role that is assumed using the SAML assertion. For more details, see Enabling SAML 2.0 Federated Users to Access the AWS Management Console.

Using either approach allows a federated user to access the console without having to sign in with a user name and password. We have provided a sample application that demonstrates how you can enable identity federation, providing users maintained by Microsoft Active Directory access to the AWS Management Console.

Answer 111

A

When you request temporary security credentials for your federated user using an AssumeRole API, you can optionally include an access policy with the request. The federated user’s privileges are the intersection of permissions granted by the access policy passed with the request and the access policy attached to the IAM role that was assumed. The access policy passed with the request cannot elevate the privileges associated with the IAM role being assumed. When you request temporary security credentials for your federated user using the GetFederationToken API, you must provide an access control policy with the request. The federated user’s privileges are the intersection of the permissions granted by the access policy passed with the request and the access policy attached to the IAM user that was used to make the request. The access policy passed with the request cannot elevate the privileges associated with the IAM user used to make the request. These federated user permissions apply to both API access and actions taken within the AWS Management Console.

Answer 112

A

A user requires permissions to the AWS service APIs called by the AWS Management Console. Common permissions required to access AWS services are documented in Using Temporary Security Credentials to Request Access to AWS Resources.

Answer 113

A

Depending on the API used to create the temporary security credentials, you can specify a session limit between 15 minutes and 36 hours (for GetFederationToken and GetSessionToken) and between 15 minutes and 12 hours (for AssumeRole* APIs), during which time the federated user can access the console. When the session expires, the federated user must request a new session by returning to your identity provider, where you can grant them access again. Learn more about setting session duration.

Answer 114

A

The user is presented with a message stating that the console session has timed out and that they need to request a new session. You can specify a URL to direct users to your local intranet web page where they can request a new session. You add this URL when you specify an Issuer parameter as part of your sign-in request. For more information, see Enabling SAML 2.0 Federated Users to Access the AWS Management Console.

Answer 115

A

There is no limit to the number of federated users who can be given access to the console.

Answer 116

A

Web identity federation allows you to create AWS-powered mobile apps that use public identity providers (such as Amazon Cognito, Login with Amazon, Facebook, Google, or any OpenID Connect-compatible provider) for authentication. With web identity federation, you have an easy way to integrate sign-in from public identity providers (IdPs) into your apps without having to write any server-side code and without distributing long-term AWS security credentials with the app.

For more information about web identity federation and to get started, see About Web Identity Federation.

Answer 117

A

For best results, use Amazon Cognito as your identity broker for almost all web identity federation scenarios. Amazon Cognito is easy to use and provides additional capabilities such as anonymous (unauthenticated) access, and synchronizing user data across devices and providers. However, if you have already created an app that uses web identity federation by manually calling the AssumeRoleWithWebIdentity API, you can continue to use it and your apps will still work.

Here are the basic steps to enable identify federation using one of the supported web IdPs:

Sign up as a developer with the IdP and configure your app with the IdP, who gives you a unique ID for your app.

If you use an IdP that is compatible with OIDC, create an identity provider entity for it in IAM.

In AWS, create one or more IAM roles.

In your application, authenticate your users with the public IdP.

In your app, make an unsigned call to the AssumeRoleWithWebidentity API to request temporary security credentials.

Using the temporary security credentials you get in the AssumeRoleWithWebidentity response, your app makes signed requests to AWS APIs.

Your app caches the temporary security credentials so that you do not have to get new ones each time the app needs to make a request to AWS.

For more detailed steps, see Using Web Identity Federation APIs for Mobile Apps.

Answer 118

A

If you want your federated users to be able to access only the AWS Management Console, using AWS Directory Service provides similar capabilities compared to using a third-party identity management solution. End users are able to sign in using their existing corporate credentials and access the AWS Management Console. Because AWS Directory Service is a managed service, customers do not need to set up or manage federation infrastructure, but rather need to create an AD Connector directory to integrate with their on-premises directory. If you are interested in providing your federated users access to AWS APIs, use a third-party offering, or deploy your own proxy server.

Answer 119

A

No, this is not currently supported.

Answer 120

A

No, this is a feature of your AWS account provided at no additional charge.

Answer 121

A

The AWS account owner controls and is responsible for all usage, data, and resources under the account.

Answer 122

A

Not currently. This is planned for a future release.

Answer 123

A

IAM and Consolidated Billing are complementary features. Consolidated Billing enables you to consolidate payment for multiple AWS accounts within your company by designating a single paying account. The scope of IAM is not related to Consolidated Billing. A user exists within the confines of an AWS account and does not have permissions across linked accounts. For more details, see Paying Bills for Multiple Accounts Using Consolidated Billing.

Answer 124

A

Yes, but only if you let them. In order for IAM users to access billing information, you must first grant access to the Account Activity or Usage Reports. See Controlling Access.

Answer 125

A

The service returns an “Access denied” error.

Answer 126

A

Yes. You can log IAM actions, STS actions, and AWS Management Console sign-ins by activating AWS CloudTrail. To learn more about AWS logging, see AWS CloudTrail.

Answer 127

A

No, both of these entities are treated like users with security credentials and permissions. However, people are the only ones to use a password in the AWS Management Console.

Answer 128

A

Yes, IAM users have the ability to create and modify support cases as well as use Trusted Advisor.

Answer 129

A

Yes, by default your AWS account has initial quotas set for all IAM-related entities. For details see Limitations on IAM Entities and Objects.

These quotas are subject to change. If you require an increase, you can access the Service Limit Increase form via the Contact Us page, and choose IAM Groups and Users from the Limit Type drop-down list.

Answer 130

A

AWS multi-factor authentication (AWS MFA) provides an extra level of security that you can apply to your AWS environment. You can enable AWS MFA for your AWS account and for individual AWS Identity and Access Management (IAM) users you create under your account.

Answer 131

A

AWS MFA uses an authentication device that continually generates random, six-digit, single-use authentication codes. There are two primary ways to authenticate using an AWS MFA device:

AWS Management Console users: When a user with MFA enabled signs in to an AWS website, they are prompted for their user name and password (the first factor–what they know), and an authentication code from their AWS MFA device (the second factor–what they have). All AWS websites that require sign-in, such as the AWS Management Console, fully support AWS MFA. You can also use AWS MFA together with Amazon S3 secure delete for additional protection of your S3 stored versions.

AWS API users: You can enforce MFA authentication by adding MFA restrictions to your IAM policies. To access APIs and resources protected in this way, developers can request temporary security credentials and pass optional MFA parameters in their AWS Security Token Service (STS) API requests (the service that issues temporary security credentials). MFA-validated temporary security credentials can be used to call MFA-protected APIs and resources.

Answer 132

A

Follow two easy steps:

Get an authentication device. You have two options:

Purchase a hardware device from Gemalto, a third-party provider.

Install a virtual MFA–compatible application on a device such as your smartphone.

Visit the AWS MFA page for details about how to acquire a hardware or virtual MFA device.

After you have an authentication device, you must activate it in the IAM console. You can also use the IAM CLI to activate the device for an IAM user.

Answer 133

A

AWS does not charge any additional fees for using AWS MFA with your AWS account. However, if you want to use a physical authentication device then you will need to purchase an authentication device that is compatible with AWS MFA from Gemalto, a third party provider. For more details, please visit Gemalto’s website.

Answer 134

A

Yes. Each IAM user can have its own authentication device. However, each identity (IAM user or root account) can be associated with only one authentication device.

Answer 135

A

No. The authentication device or mobile phone number is bound to an individual AWS identity (IAM user or root account). If you have a TOTP-compatible application installed on your smartphone, you can create multiple virtual MFA devices on the same smartphone. Each one of the virtual MFA devices is bound to a single identity, just like a hardware device. If you dissociate (deactivate) the authentication device, you can then reuse it with a different AWS identity. The authentication device cannot be used by more than one identity simultaneously.

Answer 136

A

No. AWS MFA relies on knowing a unique secret associated with your authentication device in order to support its use. Because of security constraints that mandate such secrets never be shared between multiple parties, AWS MFA cannot support the use of your existing hardware authentication device. Only a compatible hardware authentication device purchased from Gemalto can be used with AWS MFA.

Purchasing an MFA Device

Answer 137

A

Gemalto’s customer service can assist you.

Answer 138

A

Gemalto’s customer service can assist you.

Answer 139

A

You simply need to activate the authentication device to enable AWS MFA for your AWS account. See the IAM console to perform this task.

Provisioning a Virtual MFA Device

Answer 140

A

A virtual MFA device is an entry created in a TOTP compatible software application that can generate six-digit authentication codes. The software application can run on any compatible computing device, such as a smartphone.

Answer 141

A

Virtual MFA devices use the same protocols as the physical MFA devices. Virtual MFA devices are software based and can run on your existing devices such as smartphones. Most virtual MFA applications also allow you to enable more than one virtual MFA device, which makes them more convenient than physical MFA devices.

Answer 142

A

You can use applications that generate TOTP-compliant authentication codes, such as the Google Authenticator application, with AWS MFA. You can provision virtual MFA devices either automatically by scanning a QR code with the device’s camera or by manual seed entry in the virtual MFA application.

Visit the MFA page for a list of supported virtual MFA applications.

Answer 143

A

A QR code is a two-dimensional barcode that is readable by dedicated QR barcode readers and most smartphones. The code consists of black squares arranged in larger square patterns on a white background. The QR code contains the required security configuration information to provision a virtual MFA device in your virtual MFA application.

Answer 144

A

You can configure a new virtual MFA device in the IAM console for your IAM users as well as for your AWS root account. You can also use the aws iam create-virtual-mfa-device command in the AWS CLI or the CreateVirtualMFADevice API to provision new virtual MFA devices under your account. The aws iam create-virtual-mfa-device and the CreateVirtualMFADevice API return the required configuration information, called a seed, to configure the virtual MFA device in your AWS MFA compatible application. You can either grant your IAM users the permissions to call this API directly or perform the initial provisioning for them.

Answer 145

A

You should treat seed material like any other secret (for example the AWS secret keys and passwords).

Answer 146

A

Grant the IAM user the permission to call the CreateVirtualMFADevice API. You can use this API to provision new virtual MFA devices.

SMS MFA

Answer 147

A

We are no longer accepting new participants for the SMS MFA preview. We encourage you to use MFA on your AWS account by using either a hardware or virtual MFA device.

Answer 148

A

For existing SMS MFA participants, you can navigate to the IAM console and enable SMS MFA for IAM users. The process involves entering a phone number for each IAM user. Then, when the IAM user signs in to the AWS Management Console, the user receives a six-digit security code via a standard SMS text message and must enter it when signing in.

Enabling AWS MFA Devices

Answer 149

A

You can enable AWS MFA for an AWS account and your IAM users in the IAM console, the AWS CLI, or by calling the AWS API.

Answer 150

A

If you are activating the MFA device with the IAM console then you only need the device. If you are using the AWS CLI or the IAM API then you need the following:

The serial number of the authentication device. The format of the serial number depends on whether you are using a hardware device or a virtual device:
- Hardware MFA device: The serial number is on the bar-coded label on the back of the device.
- Virtual MFA device: The serial number is the Amazon Resource Name (ARN) value returned when you run the iam-virtualmfadevicecreate command in the AWS CLI or call the CreateVirtualMFADevice API.
Two consecutive authentication codes displayed by the authentication device.

Answer 151

A

Please contact us for help.

Using AWS MFA

Answer 152

A

Yes. The AWS root credential user and IAM users must have their MFA device with them any time they need to sign in to any AWS website.

If your MFA device is lost, damaged, stolen, or not working, you can sign in using alternative factors of authentication, deactivate the MFA device, and activate a new device. As a security best practice, we recommend that you change your root account’s password.

With virtual and hardware MFA, if your IAM users lose or damage their authentication device, or if it is stolen or stops working, you can disable AWS MFA yourself by using the IAM console or the AWS CLI.

Answer 153

A

No, it’s optional. However, you must enter an MFA code if you plan to call APIs that are secured by MFA-protected API access.

If you are calling AWS APIs using access keys for your AWS root account or IAM user, you do not need to enter an MFA code. For security reasons, we recommend that you remove all access keys from your AWS root account and instead call AWS APIs with the access keys for an IAM user that has the required permissions.

Answer 154

A

Follow these two steps:

If you are signing in as an AWS root account, sign in as usual with your user name and password when prompted. To sign in as an IAM user, use the account-specific URL and provide your user name and password when prompted.

On the next page, enter the six-digit authentication code that appears on your authentication device.

Answer 155

A

AWS MFA changes the way IAM users access AWS Service APIs only if the account administrator(s) choose to enable MFA-protected API access. Administrators may enable this feature to add an extra layer of security over access to sensitive APIs by requiring that callers authenticate with an AWS MFA device. For more information, see the MFA-protected API access documentation in more detail.

Other exceptions include S3 PUT bucket versioning, GET bucket versioning, and DELETE object APIs, which allow you to require MFA authentication to delete or change the versioning state of your bucket. For more information see the S3 documentation discussing Configuring a Bucket with MFA Delete in more detail.

For all other cases, AWS MFA does not currently change the way you access AWS service APIs.

Answer 156

A

No. For security reasons, you can use each authentication code only once.

Answer 157

A

No, this can happen occasionally. AWS MFA relies on the clock in your authentication device being in sync with the clock on our servers. Sometimes, these clocks can drift apart. If this happens, when you use the authentication device to sign in to access secure pages on the AWS website or the AWS Management Console, AWS automatically attempts to resync the authentication device by requesting that you provide two consecutive authentication codes (just as you did during activation).

Answer 158

A

We suggest you resynchronize MFA devices for your IAM user’s credentials. If you already tried to resync and are still having trouble signing in, you can sign in using alternate factors of authentication and reset your MFA device. If you are still encountering issues, contact us for help.

Answer 159

A

If your authentication device is associated with an AWS root account:

You can reset your MFA device on the AWS Management Console by first signing in with your password and then verifying the email address and phone number associated with your root account.

If your MFA device is lost, damaged, stolen or not working, you can sign in using alternative factors of authentication, deactivate the MFA device, and activate a new MFA device. As a security best practice, we recommend that you change your root account’s password.

If you need a new authentication device, you can purchase a new hardware authentication device from the third-party provider, Gemalto, or provision a new virtual MFA device under your account by using the IAM console.

If you have tried the preceding approaches and are still having trouble signing in, contact AWS Support.

Answer 160

A

To disable AWS MFA for your AWS account, you can deactivate your authentication device using the Security Credentials page. To disable AWS MFA for your IAM users, you need to use the IAM console or the AWS CLI.

Answer 161

A

Yes, you can use AWS virtual MFA and hardware MFA devices in GovCloud.

MFA-protected API access

Answer 162

A

MFA-protected API access is optional functionality that lets account administrators enforce additional authentication for customer-specified APIs by requiring that users provide a second authentication factor in addition to a password. Specifically, it enables administrators to include conditions in their IAM policies that check for and require MFA authentication for access to selected APIs. Users making calls to those APIs must first get temporary credentials that indicate the user entered a valid MFA code.

Answer 163

A

Previously, customers could require MFA for access to the AWS Management Console, but could not enforce MFA requirements on developers and applications interacting directly with AWS service APIs. MFA-protected API access ensures that IAM policies are universally enforced regardless of access path. As a result, you can now develop your own application that uses AWS and prompts the user for MFA authentication before calling powerful APIs or accessing sensitive resources.

Answer 164

A

You can get started in two simple steps:

Assign an MFA device to your IAM users. You can purchase a hardware key fob, or download a free TOTP-compatible application for your smartphone, tablet, or computer. See the MFA detail page for more information on AWS MFA devices.

Enable MFA-protected API access by creating permission policies for the IAM users and/or IAM groups from which you want to require MFA authentication. To learn more about access policy language syntax, see the access policy language documentation.

Answer 165

A

Developers and users interact with MFA-protected API access both in the AWS Management Console and at the APIs.

In the AWS Management Console, any MFA-enabled IAM user must authenticate with their device to sign in. Users that do not have MFA do not receive access to MFA-protected APIs and resources.

At the API level, developers can integrate AWS MFA into their applications to prompt users to authenticate using their assigned MFA devices before calling powerful APIs or accessing sensitive resources. Developers enable this functionality by adding optional MFA parameters (serial number and MFA code) to requests to obtain temporary security credentials (such requests are also referred to as “session requests”). If the parameters are valid, temporary security credentials that indicate MFA status are returned. See the temporary security credentials documentation for more information.

Answer 166

A

MFA-protected API access is available for free to all AWS customers.

Answer 167

A

MFA-protected API access is supported by all AWS services that support temporary security credentials. For a list of supported services, see AWS Services that Work with IAM and review the column labeled Supports temporary security credentials.

Answer 168

A

The request to issue temporary security credentials fails. Temporary security credential requests that specify MFA parameters must provide the correct serial number of the device linked to the IAM user as well as a valid MFA code.

Answer 169

A

No, MFA-protected API access only controls access for IAM users. Root accounts are not bound by IAM policies, which is why we recommend that you create IAM users to interact with AWS service APIs rather than use AWS root account credentials.

Answer 170

A

Yes, a user must first be assigned a unique hardware or virtual MFA device.

Answer 171

A

MFA-protected API access and S3 MFA Delete do not interact with each other. S3 MFA Delete currently does not support temporary security credentials. Instead, calls to the S3 MFA Delete API must be made using long-term access keys.

Answer 172

A

Customers cannot use MFA-protected API access to control access for federated users. The GetFederatedSession API does not accept MFA parameters. Since federated users can’t authenticate with AWS MFA devices, they are unable to access resources designated using MFA-protected API access.

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Security, Identity & Compliance | AWS Identity and Access Management (IAM) Flashcards

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