FREE AWS Cloud Essentials Questions and Answers

Question 1

Which service enables you to lessen the complexity and development time of machine learning (ML)?

Accepted Answer

AWS SageMaker

Answer

AWS SageMaker is a fully managed service that provides every developer and data scientist with the ability to build, train, and deploy machine learning (ML) models quickly. It significantly reduces the complexity and development time of ML projects by offering a comprehensive set of tools and services. This allows users to focus on model development rather than managing underlying infrastructure.

Question 2

What can you do with the AWS Marketplace?

Accepted Answer

AWS Marketplace lets you list and sell software

Answer

The AWS Marketplace is a digital catalog where customers can find, buy, and immediately start using third-party software and services that run on AWS. It allows independent software vendors (ISVs) to list and sell their software solutions to AWS customers. This provides a convenient platform for both buyers and sellers of cloud-based software, streamlining procurement and deployment.

Question 3

What can the AWS DynamoDB Accelerator do?

Accepted Answer

Improves read times of non-relational data

Answer

AWS DynamoDB Accelerator (DAX) is an in-memory caching service specifically designed to improve the read performance of Amazon DynamoDB tables. It provides microsecond response times for millions of requests per second, even for eventually consistent reads. DAX is ideal for applications that require high-performance reads from non-relational DynamoDB databases, significantly reducing latency.

Question 4

Which AWS database service provides historical information about changes to your application?

Accepted Answer

AWS Quantum Ledger Database

Answer

AWS Quantum Ledger Database (QLDB) is a fully managed ledger database that provides a transparent, immutable, and cryptographically verifiable transaction log owned by a central trusted authority. It tracks every application data change and maintains a complete, verifiable history of all modifications. This makes it ideal for applications requiring a trusted and auditable record of data changes, such as financial transactions.

Question 5

What is the name of the service that enables server-free code execution?

Accepted Answer

AWS Lambda

Answer

AWS Lambda is a serverless compute service that lets you run code without provisioning or managing servers. You simply upload your code, and Lambda automatically handles all the underlying infrastructure, scaling, and maintenance. This allows developers to focus solely on writing code, paying only for the compute time consumed, embodying the serverless paradigm.

AWS Practice Test

AWS Practice Test

FREE AWS Cloud Essentials Questions and Answers