Review Questions

Module 1 Introduction

Summarize the benefits of AWS.

Describe differences between on-demand delivery and cloud deployments.

Summarize the pay-as-you-go pricing model.

Module 1

Question 1

What is cloud computing?

The correct response option is On-demand delivery of IT resources and applications through the internet with pay-as-you-go pricing

Question 2

How does the scale of cloud computing help you to save costs?

The aggregated cloud usage from a large number of customers results in lower pay-as-you-go prices.

Question 3

What is another name for on-premises deployment?

Private cloud deployment.

Module 3

1. Which statement best describes an Availability Zone?

A single data center or group of data centers within a Region

2. Which statement is TRUE for the AWS global infrastructure?

A Region consists of two or more Availability Zones.

3. Which factors should be considered when selecting a Region? (Select TWO.)

Compliance with data governance and legal requirements

Proximity to your customers

4. Which statement best describes Amazon CloudFront?

A global content delivery service

5. Which site does Amazon CloudFront use to cache copies of content for faster delivery to users at any location?

Edge location

6. Which action can you perform with AWS Outposts?

Extend AWS infrastructure and services to your on-premises data center.

Module 4

QUESTION

1. Which statement best describes an AWS account’s default network access control list?

It is stateless and allows all inbound and outbound traffic..

1. Your company has an application that uses Amazon EC2 instances to run the customer-facing website and Amazon RDS database instances to store customers’ personal information. How should the developer configure the VPC according to best practices?

Place the Amazon EC2 instances in a public subnet and the Amazon RDS database instances in a private subnet.

2. Which component or service can be used to establish a private dedicated connection between your company’s data center and AWS?

AWS Direct Connect

3. Which statement best describes security groups?

They are stateful and deny all inbound traffic by default.

4. Which component is used to connect a VPC to the internet?

Internet gateway

5. Which service is used to manage the DNS records for domain names?

Amazon Route 53

Module 5

Question

1. Which Amazon S3 storage classes are optimized for archival data? (Select TWO.)

S3 Glacier

S3 Glacier Deep Archive

Note:

S3 Standard is a storage class that is ideal for frequently accessed data, not archival data.

S3 Intelligent-Tiering monitors access patterns of objects and automatically moves them between the S3 Standard and S3 Standard-IA storage classes. It is not designed for archival data.

S3 Standard-IA is ideal for data that is infrequently accessed but requires high availability when needed.

2. Which statement or statements are TRUE about Amazon EBS volumes and Amazon EFS file systems?

EBS volumes store data within a single Availability Zone. Amazon EFS file systems store data across multiple Availability Zones.

NOTE:

An EBS volume must be located in the same Availability Zone as the Amazon EC2 instance to which it is attached.

Data in an Amazon EFS file system can be accessed concurrently from all the Availability Zones in the Region where the file system is located.

3, You want to store data in an object storage service. Which AWS service is best for this type of storage?

Amazon Simple Storage Service (Amazon S3)

NOTE

Amazon Managed Blockchain is a service that you can use to create and manage blockchain networks with open-source frameworks. Blockchain is a distributed ledger system that lets multiple parties run transactions and share data without a central authority.

Amazon Elastic File System (Amazon EFS) is a scalable file system used with AWS Cloud services and on-premises resources. It does not store data as object storage.

Amazon Elastic Block Store (Amazon EBS) is a service that provides block-level storage volumes that you can use with Amazon EC2 instances.

4. Which statement best describes Amazon DynamoDB?

A serverless key-value database service

Note:

A service that enables you to run relational databases in the AWS Cloud describes Amazon Relational Database Service (Amazon RDS).

A service that you can use to migrate relational databases, nonrelational databases, and other types of data stores describes AWS Database Migration Service (AWS DMS).

An enterprise-class relational database describes Amazon Aurora

5. Which service is used to query and analyze data across a data warehouse?

Amazon Redshift

Note:

Amazon Neptune is a graph database service. You can use Amazon Neptune to build and run applications that work with highly connected datasets, such as recommendation engines, fraud detection, and knowledge graphs.

Amazon DocumentDB is a document database service that supports MongoDB workloads.

Amazon ElastiCache is a service that adds caching layers on top of your databases to help improve the read times of common requests.