Domain 1: Cloud Concepts

Question 1

Your company would like to begin using auto-scaling to add servers when CPU utilization reaches a certain threshold (say 70%). Which service can you use to trigger actions when CPU utilization crosses the threshold?

Answer 1

CloudWatch Alarms

Question 2

Your company has decided to use Amazon WorkSpaces. They can use Amazon WorkSpaces to provision either Windows or Linux desktops in just a few minutes. What type of solution is this?

Answer 2

DaaS

Question 3

Which AWS service can you use to connect your AWS cloud with an on-premises data center?

Answer 3

Virtual Private Gateway

Question 4

You have recently started using AWS and now need to launch a large number of instances in your VPC. You learn that this number exceeds the service limits for instances in a VPC. What can you do?

Answer 4

Contact AWS and request a service limit increase.

Question 5

During Disaster Recovery exercises, you need to re-route traffic from EC2 instances to instances in another region. With which service can you do this?

Answer 5

Route 53

Question 6

A small company wants to deploy a new system in the AWS cloud but does not have anyone with the required AWS skill set to perform the deployment. Which AWS service can help with this?

Answer 6

AWS Partner Network (APN) Consulting Partners

Question 7

Which of the following is an AWS Global Service?

Answer 7

IAM

Question 8

Which statement is true regarding the AWS Global Infrastructure?

Answer 8

Each AWS region contains one or more availability zones.

Question 9

Your company has decided to migrate entirely to the AWS Cloud. Which answers are a part of the 6 advantages of cloud computing?

Answer 9

Stop spending money running and maintaining data centers

Go global in minutes

Question 10

Which statement below is one of the 6 advantages of cloud computing?

Answer 10

Benefit from increased speed and agility.

Question 11

An application that experiences highly variable traffic throughout the day has been configured in AWS. The capacity configured to serve this application adjusts to demands throughout the day. Which AWS principle does this describe?

Answer 11

Elasticity

Question 12

Which is a core design principle for deploying resources in AWS?

Answer 12

Deploy in Multiple Availability Zones.

Question 13

What are the three cloud computing models?

Infrastructure as a Service (IaaS)

Hardware as a Service (HaaS)

PlatForm as a Service (PaaS)

Software as a Service (SaaS)

Answer 13

Infrastructure as a Service (IaaS)

PlatForm as a Service (PaaS)

Software as a Service (SaaS)

Question 14

After creating an EC2 instance to host an application, the traffic to the site far exceeds what was expected. You decide to move to a larger instance type. What AWS principle does this represent?

Answer 14

Vertical Scaling

Question 15

The CFO of a software company had requested an Executive Summary detailing the advantages of a potential move to the AWS Cloud. What can you say is an advantage of an RDS database over a traditional database?

Answer 15

AWS maintains the underlying OS and performs software patching on the database.

Question 16

Which AWS service can provide a Desktop as a Service (DaaS) solution?

Answer 16

Amazon WorkSpaces

Question 17

A retail company has EC2 On-Demand instances running to serve customer transactions. There is a set pattern of traffic where demand is high at two points in the day, but the instances sit idle for much of the day. What is a good way to optimize these resources?

Answer 17

Use an Auto Scaling Group to scale out and in based on demand.

Question 18

Which valuable AWS design principle can be a valuable feature when deploying applications?

Answer 18

Loose Coupling

Implement loosely coupled dependencies: Dependencies such as queuing systems, streaming systems, workflows, and load balancers are loosely coupled. Loose coupling helps isolate the behavior of a component from other components that depend on it, increasing resiliency and agility

Question 19

You want to define a virtual network in your AWS cloud to be able to launch resources in that virtual network. What do you need to configure?

Answer 19

VPC

Amazon Virtual Private Cloud (Amazon VPC) lets you provision a logically isolated section of the AWS Cloud where you can launch AWS resources in a virtual network that you define. You have complete control over your virtual networking environment, including the selection of your own IP address range, creation of subnets, and configuration of route tables and network gateways. You can use both IPv4 and IPv6 in your VPC for secure and easy access to resources and applications.

Question 20

Which of the following is an AWS Global Service?

Answer 20

CloudFront

Amazon CloudFront is a fast content delivery network (CDN) service that securely delivers data, videos, applications, and APIs to customers globally with low latency, high transfer speeds, all within a developer-friendly environment.

Question 21

Which AWS service can you use to connect your AWS cloud with an on-premises data center?

Answer 21

Virtual Private Gateway

A virtual private gateway is a logical, fully redundant distributed edge routing function that sits at the edge of your VPC. As it is capable of terminating VPN connections from your on-prem or customer environments, the VPG is the VPN concentrator on the Amazon side of the Site-to-Site VPN connection.

Question 22

You suspect that one of the AWS services your company is using has gone down. How can you check on the status of this service?

Answer 22

AWS Personal Health Dashboard

Question 23

During Disaster Recovery exercises, you need to re-route traffic from EC2 instances to instances in another region. With which service can you do this?

Answer 23

Route 53

Route 53 can be used for Disaster Recovery by simply shifting traffic to the new region. Amazon Route 53 is a highly available and scalable cloud Domain Name System (DNS) web service. It is designed to give developers and businesses an extremely reliable and cost-effective way to route end users to Internet applications by translating names like www.example.com into the numeric IP addresses like 192.0.2.1 that computers use to connect to each other. Amazon Route 53 is fully compliant with IPv6 as well.

Question 24

A company has signed a 3-year contract with a School District to develop a Teacher Absence Management application. Which type of EC2 instance would be best for application development on this project?

Answer 24

Standard Reserved Instances

Standard Reserved Instances provide you with a significant discount (up to 72%) compared to On-Demand Instance pricing and can be purchased for a 1-year or 3-year term. Customers have the flexibility to change the Availability Zone, the instance size, and networking type of their Standard Reserved Instances.

Question 25

You are leading a pilot program to try the AWS Cloud for one of your applications. You have been instructed to provide an estimate of your AWS bill. Which service will allow you to do this by manually entering your planned resources by service?

Answer 25

AWS Pricing Calculator

With the AWS Pricing Calculator, you can input the services you will use, and the configuration of those services, and get an estimate of the costs these services will accrue. AWS Pricing Calculator lets you explore AWS services, and create an estimate for the cost of your use cases on AWS.

Question 26

Which AWS service would enable you to view the spending distribution in one of your AWS accounts?

Answer 26

AWS Cost Explorer

AWS Cost Explorer is a free tool that you can use to view your costs and usage. You can view data up to the last 13 months, forecast how much you are likely to spend for the next three months, and get recommendations for what Reserved Instances to purchase. You can use AWS Cost Explorer to see patterns in how much you spend on AWS resources over time, identify areas that need further inquiry, and see trends that you can use to understand your costs. You can also specify time ranges for the data, and view time data by day or by month.

Question 27

You need to track your AWS costs on a detailed level. Which tool will allow you to do this?

Answer 27

Cost Allocation Tags

A tag is a label that you or AWS assigns to an AWS resource. Each tag consists of a key and a value. For each resource, each tag key must be unique, and each tag key can have only one value. You can use tags to organize your resources, and cost allocation tags to track your AWS costs on a detailed level. After you activate cost allocation tags, AWS uses the cost allocation tags to organize your resource costs on your cost allocation report to make it easier for you to categorize and track your AWS costs. AWS provides two types of cost allocation tags, an AWS generated tags and user-defined tags. AWS defines, creates, and applies the AWS generated tags for you, and you define, create, and apply user-defined tags. You must activate both types of tags separately before they can appear in Cost Explorer or on a cost allocation report.

Question 28

Your company is considering migrating its data center to the cloud. What are the advantages of the AWS cloud over an on-premises data center?

Answer 28

Replace upfront capital expenses with low variable costs.

Question 29

An on-premises application requires a consistent, high-speed connection to the AWS Cloud environment that is better than an internet-based connection. Which AWS service can provide this connection?

Answer 29

Direct Connect

AWS Direct Connect is a cloud service solution that makes it easy to establish a dedicated network connection from your premises to AWS. AWS Direct Connect lets you establish a dedicated network connection between your network and one of the AWS Direct Connect locations.