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AWS developer > 31-60 > Flashcards

31-60 Flashcards

1
Q

QUESTION 31
In relation to Amazon SQS, how can you ensure that messages are delivered in order?
A. Increase the size of your queue
B. Send them with a timestamp
C. Give each message a unique id.
D. AWS cannot guarantee that you will receive messages in the exact order you sent them

A

D. AWS cannot guarantee that you will receive messages in the exact order you sent them

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2
Q

QUESTION 32
An orgAMzation has launched two applications: one for blogging and one for ECM on the same AWS Linux EC2 instance running in the AWS VPC. The orgAMzation has attached two private IPs (primary and secondary) to the above mentioned instance. The orgAMzation wants the instance OS to recognize the secondary IP address. How can the orgAMzation configure this?
A. Use the ec2-net-utility package which updates routing tables, uses DHCP to refresh the secondary IP and adds the network interface.
B. Use the ec2-net-utils package which will configure an additional network interface and update the routing table
C. Use the ec2-ip-update package which can configure the network interface as well as update the secondary IP with DHCP.
D. Use the ec2-ip-utility package which can update the routing tables as well as refresh the secondary IP using DHCP.

A

B. Use the ec2-net-utils package which will configure an additional network interface and update the routing table

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3
Q 
QUESTION 33
What kind of service is provided by AWS DynamoDB?
A.	Relational Database
B.	NoSQL Database
C.	Dynamic Database
D.	Document Database
A

B. NoSQL Database

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4
Q 
QUESTION 34
In relation to Amazon SQS, how many queues and messages can you have per queue for each user?
A.	Unlimited
B.	10
C.	256
D.	500
A

A. Unlimited

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5
Q

QUESTION 35
Doug has created a VPC with CIDR 10.201.0.0/16 in his AWS account. In this VPC he has created a public subnet with CIDR block 10.201.31.0/24. While launching a new EC2 from the console, he is not able to assign the private IP address 10.201.31.6 to this instance. Which is the most likely reason for this issue?
A. Private IP address 10.201.31.6 is not part of the associated subnet’s IP address range.
B. Private IP address 10.201.31.6 is blocked via ACLs in Amazon infrastructure as a part of platform security.
C. Private address IP 10.201.31.6 is currently assigned to another interface.
D. Private IP address 10.201.31.6 is reserved by Amazon for IP networking purposes.

A

C. Private address IP 10.201.31.6 is currently assigned to another interface.

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6
Q

QUESTION 36
Regarding Amazon SQS, are there restrictions on the names of Amazon SQS queues?
A. No
B. Yes. Queue names must be unique within an AWS account and you cannot use hyphens (-) and underscores (_)
C. Yes. Queue names are limited to 80 characters and queue names must be unique within an AWS account
D. Yes. Queue names are limited to 80 characters but queue names do not need to be unique within an AWS account

A

C. Yes. Queue names are limited to 80 characters and queue names must be unique within an AWS account

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7
Q 
QUESTION 37
In Amazon SNS, to send push notifications to mobile devices using Amazon SNS and ADM, you need to obtain the following, except:
A.	Client secret
B.	Client ID
C.	Device token
D.	Registration ID
A

C. Device token

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8
Q

QUESTION 38
Regarding Amazon SNS, to begin using Amazon SNS mobile push notifications, you first need that uses one of the supported push notification services: APNS, GCM, or ADM.
A. an access policy for the mobile endpoints
B. to active push notification service of Amazon SNS
C. to know the type of mobile device operating system
D. an app for the mobile endpoints

A

D. an app for the mobile endpoints

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9
Q 
QUESTION 39
How many types of block devices does Amazon EC2 support?
A.	5
B.	1
C.	2
D.	4
A

C. 2

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10
Q

QUESTION 40
ExamKiller (with AWS account ID H1122223333) has created 50 1AM users for its orgAMzation’s employees. ExamKiller wants to make the AWS console login URL for all 1AM users as: https:// examkil| er.signin.aws.amazon.com/conso|e/. How can this be configured?
A. Create a bucket with the name ExamKil|er and map it with the 1AM alias
B. It is not possible to have capital letters as a part of the alias name
C. The user needs to use Route 53 to map the ExamKiller domain and 1AM URL
D. For the AWS account, create an alias ExamKiller for the 1AM login

A

B. It is not possible to have capital letters as a part of the alias name

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11
Q

QUESTION 41
Can a user get a notification of each instance start / terminate configured with Auto Scaling?
A. Yes, always
B. No
C. Yes, if configured with the Auto Scaling group
D. Yes, if configured with the Launch Config

A

C. Yes, if configured with the Auto Scaling group

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12
Q

QUESTION 42
AutoScaling is configured with 3 AZs. Each zone has 5 instances running. If AutoScaling wants to terminate an instance based on the policy action, which instance will it terminate first?
A. Terminate the first launched instance
B. Randomly select the instance for termination
C. Terminate the instance from the AZ which does not have a high AWS load
D. Terminate the instance from the AZ which has instances running near to the billing hour

A

B. Randomly select the instance for termination

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13
Q

QUESTION 43
In regard to DynamoDB, can I delete local secondary indexes?
A. Yes, if it is a primary hash key index
B. No
C. Yes, if it is a local secondary indexes
D. Yes, if it is a Global secondary indexes

A

B. No

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14
Q

QUESTION 44
You need to develop and run some new applications on AWS and you know that Elastic Beanstalk and CloudFormation can both help as a deployment mechAMsm for a broad range of AWS resources. Which of the following statements best describes the differences between Elastic Beanstalk and C|oudFormation?
A. Elastic Beanstalk uses Elastic load balancing and CloudFormation doesn’t.
B. CloudFormation is faster in deploying applications than Elastic Beanstalk.
C. CloudFormation is much more powerful than Elastic Beanstalk, because you can actually design and script custom resources
D. Elastic Beanstalk is faster in deploying applications than CloudFormation.

A

C. CloudFormation is much more powerful than Elastic Beanstalk, because you can actually design and script custom resources

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15
Q

QUESTION 45
Can you SSH to your private machines that reside in a VPC from outside without elastic IP?
A. Yes, but only if you have direct connect or vpn
B. Only if you are using a non-US region
C. Only if you are using a US region
D. No

A

A. Yes, but only if you have direct connect or vpn

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16
Q

QUESTION 46
Does AWS CloudFormation support Amazon EC2 tagging?
A. It depends if the Amazon EC2 tagging has been defined in the template.
B. No, it doesn’t support Amazon EC2 tagging.
C. No, CloudFormation doesn’t support any tagging
D. Yes, AWS CloudFormation supports Amazon EC2 tagging

A

D. Yes, AWS CloudFormation supports Amazon EC2 tagging

17
Q 
QUESTION 47
A user has created a MySQL RDS instance. Which of the below mentioned options is mandatory to configure while creating an instance?
A.	Multi AZ deployment setup
B.	Automated backup window
C.	Availability Zone
D.	Maintenance window
A

A. Multi AZ deployment setup

18
Q

QUESTION 48
A user has enabled the automated backup, but not specified the backup window. What will RDS do in this case?
A. Will throw an error on instance launch
B. RDS will take 3 AM – 3:30 AM as the default window
C. RDS assigns a random time period based on the region
D. Will not allow to launch a DB instance

A

C. RDS assigns a random time period based on the region

19
Q

QUESTION 49
A user is planning to host a web server as well as an app server on a single EC2 instance which is a part of the public subnet of a VPC. How can the user setup to have two separate public IPs and separate security groups for both the application as well as the web server?
A. Launch a VPC instance with two network interfaces. Assign a separate security group to each and AWS will assign a separate public IP to them.
B. Launch VPC with two separate subnets and make the instance a part of both the subnets.
C. Launch a VPC instance with two network interfaces. Assign a separate security group and elastic IP to them.
D. Launch a VPC with ELB such that it redirects requests to separate VPC instances of the public subnet.

A

C. Launch a VPC instance with two network interfaces. Assign a separate security group and elastic IP to them.

20
Q 
QUESTION 50
An online gaming site asked you if you can deploy a database that is a fast, highly scalable NoSQL database service in AWS for a new site that he wants to build. Which database should you recommend?
A.	Amazon Redshift
B.	Amazon SimpleDB
C.	Amazon DynamoDB
D.	Amazon RDS
A

C. Amazon DynamoDB

21
Q

QUESTION 51
How long are the messages kept on an SQS queue by default?
A. If a message is not read, it is never deleted
B. 2 weeks
C. 1 day
D. 4 days

A

D. 4 days

22
Q 
QUESTION 52
Regarding Amazon SWF, the coordination logic in a workflow is contained in a software program called a
A.	Handler
B.	Decider
C.	Cordinator
D.	Worker
A

B. Decider

23
Q

QUESTION 53
A user has attached one RDS security group with 5 RDS instances. The user has changed the ingress rule for the security group. What will be the initial status of the ingress rule?
A. Approving
B. Implementing
C. Authorizing
D. It is not possible to assign a single group to multiple DB instances

A

C. Authorizing

24
Q

QUESTION 54
A user has attached an EBS volume to a running Linux instance as a “/dev/sdf device. The user is unable to see the attached device when he runs the command “df -h”. What is the possible reason for this?
A. The volume is not in the same AZ of the instance
B. The volume is not formatted
C. The volume is not attached as a root device
D. The volume is not mounted

A

D. The volume is not mounted

25
Q

QUESTION 55
A user has setup an application on EC2 which uses the 1AM user access key and secret access key to make secure calls to S3. The user wants to temporarily stop the access to S3 for that 1AM user. What should the root owner do?
A. Delete the 1AM user
B. Change the access key and secret access key for the users
C. Disable the access keys for the 1AM user
D. Stop the instance

A

C. Disable the access keys for the 1AM user

26
Q

QUESTION 56
When should a user try to Force Detach an EBS volume?
A. If the volume is stuck in a detaching state
B. If the volume is not accessible from the instance
C. If the volume is not unmounted and the user still wants to detach
D. If the volume is a root volume

A

A. If the volume is stuck in a detaching state

27
Q

QUESTION 57
How can a user configure three termination policies for the AutoScaling group?
A. Define multiple policies in random order
B. Define multiple policies in the ordered list
C. Keep updating the AutoScaling group with each policy
D. The user cannot specify more than two policies for AutoScaling

A

B. Define multiple policies in the ordered list

28
Q

QUESTION 58
A user wants to configure AutoScaling which scales up when the CPU utilization is above 70% and scales down when the CPU utilization is below 30%. How can the user configure AutoScaling for the above
mentioned condition?
A. Use AutoScaling with a schedule
B. Configure ELB to notify AutoScaling on load increase or decrease
C. Use dynamic AutoScaling with a policy
D. Use AutoScaling by manually modifying the desired capacity during a condition

A

C. Use dynamic AutoScaling with a policy

29
Q 
QUESTION 59
A user has created an application which sends data to a log file. The server hosting the log files can be unavailable due to any reason. The user wants to make it so that whenever the log server is up it should be receMng the messages. Which of the below mentioned AWS services helps achieve this functionality?
A.	AWS Simple Workflow
B.	AWS Simple Task Service
C.	AWS Simple Notification Service
D.	AWS Simple Queue Service
A

D. AWS Simple Queue Service

30
Q

QUESTION 60
Is there a limit to how much throughput you can get out of a single table in DynamoDB?
A. Yes, not more than 1,000 writes/second or 1,000 reads/second
B. No
C. Yes, not more than 10,000 writes/second or 10,000 reads/second
D. No, but If you wish to exceed throughput rates of 10,000 writes/second or 10,000 reads/second, you must first contact AWS.

A

D. No, but If you wish to exceed throughput rates of 10,000 writes/second or 10,000 reads/second, you must first contact AWS.

AWS developer (5 decks)

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