Amazon Amazon Certifications CLF-C02 Questions & Answers

• Question 631:

  A company's application stores data in an Amazon S3 bucket. The company has an AWS Lambda function that processes data in the S3 bucket. The company needs to invoke the function once a day at a specific time.

  Which AWS service should the company use to meet this requirement?

  A. AWS Managed Services (AMS)

  B. AWS CodeStar

  C. Amazon EventBridge

  D. AWS Step Functions

  Correct Answer: C

  Amazon EventBridge is the service that the company should use to meet the requirement of invoking the Lambda function once a day at a specific time. Amazon EventBridge is a serverless event bus service that allows you to easily connect your applications with data from AWS services, SaaS applications, and your own applications. You can use Amazon EventBridge to create rules that match events and route them to targets such as AWS Lambda functions, Amazon SNS topics, Amazon SQS queues, or other AWS services. You can also use Amazon EventBridge to create scheduled rules that trigger your targets at a specific time or interval, such as once a day. AWS Managed Services (AMS), AWS CodeStar, and AWS Step Functions are not services that the company should use to meet this requirement. AMS is a service that provides operational management for your AWS infrastructure and applications. AWS CodeStar is a service that provides a unified user interface for managing software development projects on AWS. AWS Step Functions is a service that coordinates multiple AWS services into serverless workflows.

• Question 632:

  A retail company is migrating its IT infrastructure applications from on premises to the AWS Cloud.

  Which costs will the company eliminate with this migration? (Select TWO.)

  A. Cost of data center operations

  B. Cost of application licensing

  C. Cost of marketing campaigns

  D. Cost of physical server hardware

  E. Cost of network management

  Correct Answer: AD

  The costs that the company will eliminate with this migration are the cost of application licensing and the cost of physical server hardware. The cost of application licensing is the fee that the company has to pay to use the software applications on its on- premises servers. The cost of physical server hardware is the expense that the company has to incur to purchase, maintain, and upgrade the servers and related equipment. By migrating to the AWS Cloud, the company can avoid these costs by using the AWS services and resources that are already licensed and managed by AWS. For more information, see [Cloud Economics] and [AWS Total Cost of Ownership (TCO) Calculator].

• Question 633:

  A company needs to test a new application that was written in Python. The code will activate when new images are stored in an Amazon S3 bucket. The application will put a watermark on each image and then will store the images in a different S3 bucket.

  Which AWS service should the company use to conduct the test with the LEAST amount of operational overhead?

  A. Amazon EC2

  B. AWS CodeDeploy

  C. AWS Lambda

  D. Amazon Lightsail

  Correct Answer: C

  AWS Lambda is a compute service that lets you run code without provisioning or managing servers. AWS Lambda executes your code only when needed and scales automatically, from a few requests per day to thousands per second. You pay only for the compute time you consume - there is no charge when your code is not running. With AWS Lambda, you can run code for virtually any type of application or backend service - all with zero administration. AWS Lambda runs your code on a high-availability compute infrastructure and performs all of the administration of the compute resources, including server and operating system maintenance, capacity provisioning and automatic scaling, code monitoring and logging

• Question 634:

  Which AWS solution gives companies the ability to use protocols such as NFS to store and retrieve objects in Amazon S3?

  A. Amazon FSx for Lustre

  B. AWS Storage Gateway volume gateway

  C. AWS Storage Gateway file gateway D. Amazon Elastic File System (Amazon EFS)

  Correct Answer: C

  AWS Storage Gateway file gateway allows companies to use protocols such as NFS and SMB to store and retrieve objects in Amazon S3. File gateway provides a seamless integration between on-premises applications and Amazon S3, and enables low- latency access to data through local caching. File gateway also supports encryption, compression, and lifecycle management of the objects in Amazon S3. For more information, see What is AWS Storage Gateway? and File Gateway.

• Question 635:

  What is a benefit of moving to the AWS Cloud in terms of improving time to market?

  A. Decreased deployment speed

  B. Increased application security

  C. Increased business agility

  D. Increased backup capabilities

  Correct Answer: C

  Increased business agility is a benefit of moving to the AWS Cloud in terms of improving time to market. Business agility refers to the ability of a company to adapt to changing customer needs, market conditions, and competitive pressures. Moving to the AWS Cloud enables business agility by providing faster access to resources, lower upfront costs, and greater scalability and flexibility. By using the AWS Cloud, companies can launch new products and services, experiment with new ideas, and respond to customer feedback more quickly and efficiently. For more information, see [Benefits of Cloud Computing] and [Business Agility].

• Question 636:

  A company is migrating a relational database server to the AWS Cloud. The company wants to minimize administrative overhead of database maintenance tasks.

  Which AWS service will meet these requirements?

  A. Amazon DynamoDB

  B. Amazon EC2

  C. Amazon Redshift

  D. Amazon RDS

  Correct Answer: D

  Amazon RDS is the AWS service that will meet the requirements of migrating a relational database server to the AWS Cloud and minimizing administrative overhead of database maintenance tasks. Amazon RDS is a fully managed relational database service that handles routine database tasks, such as provisioning, patching, backup, recovery, failure detection, and repair. Amazon RDS supports several database engines, such as MySQL, PostgreSQL, Oracle, SQL Server, and Amazon Aurora5.

• Question 637:

  When designing AWS workloads to be operational even when there are component failures, what is an AWS best practice?

  A. Perform quarterly disaster recovery tests.

  B. Place the main component on the us-east-1 Region.

  C. Design for automatic failover to healthy resources.

  D. Design workloads to fit on a single Amazon EC2 instance.

  Correct Answer: C

  Designing for automatic failover to healthy resources is an AWS best practice when designing AWS workloads to be operational even when there are component failures. This means that you should architect your system to handle the loss of one or more components without impacting the availability or performance of your application. You can use various AWS services and features to achieve this, such as Auto Scaling, Elastic Load Balancing, Amazon Route 53, Amazon CloudFormation, and AWS CloudFormation4.

• Question 638:

  Which of the following describes an AWS Region?

  A. A specific location within a geographic area that provides high availability

  B. A set of data centers spanning multiple countries

  C. A global picture of a user's cloud computing environment

  D. A collection of databases that can be accessed from a specific geographic area only

  Correct Answer: A

  An AWS Region is a specific location within a geographic area that provides high availability. An AWS Region consists of two or more Availability Zones, which are isolated locations within the same Region. Each Availability Zone has independent power, cooling, and physical security, and is connected to the other Availability Zones in the same Region by low-latency, high-throughput, and highly redundant networking. AWS services are available in multiple Regions around the world, allowing the user to choose where to run their applications and store their data1.

• Question 639:

  A retail company is building a new mobile app. The company is evaluating whether to build the app at an on-premises data center or in the AWS Cloud.

  Which of following is the responsibility model?

  A. Amazon FSx for Windows File Server

  B. Amazon Workspaces virtual Windows desktop

  C. AWS Directory Service for Microsoft Active Directory

  D. Amazon RDS for Microsoft SQL Server

  Correct Answer: C

  AWS Directory Service for Microsoft Active Directory is the AWS service that provides a managed Microsoft Active Directory in the AWS Cloud. It enables the user to use their existing Active Directory users, groups, and policies to access AWS resources, such as Amazon EC2 instances, Amazon S3 buckets, and AWS Single Sign-On. It also integrates with other Microsoft applications and services, such as Microsoft SQL Server, Microsoft Office 365, and Microsoft SharePoint

• Question 640:

  Who is responsible for decommissioning end-of-life underlying storage devices that are used to host data on AWS?

  A. Customer

  B. AWS

  C. Account creator

  D. Auditing team

  Correct Answer: B

  AWS is responsible for decommissioning end-of-life underlying storage devices that are used to host data on AWS. AWS follows strict and audited data destruction processes to ensure that customer data is not exposed to unauthorized individuals or devices when an AWS storage device reaches the end of its useful life. AWS uses techniques detailed in DoD 5220.22-M ("National Industrial Security Program Operating Manual") or NIST 800-88 ("Guidelines for Media Sanitization") to destroy data as part of the decommissioning process3.