Amazon Amazon Certifications CLF-C01 Questions & Answers

• Question 1951:

  Which service's PRIMARY purpose is software version control?

  A. Amazon CodeStar

  B. AWS Command Line Interface (AWS CLI)

  C. Amazon Cognito

  D. AWS CodeCommit

  Correct Answer: D

  AWS CodeCommit is a version control service hosted by Amazon Web Services that you can use to privately store and manage assets (such as documents, source code, and binary files) in the cloud. Reference: https://docs.aws.amazon.com/codecommit/latest/userguide/welcome.html

• Question 1952:

  A company is considering migrating its applications to AWS. The company wants to compare the cost of running the workload on-premises to running the equivalent workload on the AWS platform. Which tool can be used to perform this comparison?

  A. AWS Simple Monthly Calculator

  B. AWS Total Cost of Ownership (TCO) Calculator

  C. AWS Billing and Cost Management console

  D. Cost Explorer

  Correct Answer: B

  TCO calculator compare the cost of running your applications in an on-premises or colocation environment to AWS. Reference: https://awstcocalculator.com

• Question 1953:

  Which Amazon Virtual Private Cloud (Amazon VPC) feature enables users to connect two VPCs together?

  A. Amazon VPC endpoints

  B. Amazon Elastic Compute Cloud (Amazon EC2) ClassicLink

  C. Amazon VPC peering

  D. AWS Direct Connect

  Correct Answer: C

  A VPC peering connection is a networking connection between two VPCs that enables you to route traffic between them using private IPv4 addresses or IPv6 addresses. Instances in either VPC can communicate with each other as if they are within the same network. You can create a VPC peering connection between your own VPCs, or with a VPC in another AWS account. The VPCs can be in different regions (also known as an inter-region VPC peering connection).

  Reference: https://docs.aws.amazon.com/vpc/latest/peering/what-is-vpc-peering.html

• Question 1954:

  Which of the following services is a MySQL-compatible database that automatically grows storage as needed?

  A. Amazon Elastic Compute Cloud (Amazon EC2)

  B. Amazon Relational Database Service (Amazon RDS) for MySQL

  C. Amazon Lightsail

  D. Amazon Aurora

  Correct Answer: D

  Amazon Aurora is a relational database service that combines the speed and availability of high-end commercial databases with the simplicity and cost-effectiveness of open source databases. The MySQL-compatible edition of Aurora delivers up to 5X the throughput of standard MySQL running on the same hardware, and enables existing MySQL applications and tools to run without requiring modification.

  Amazon Aurora will automatically grow the size of your database volume as your database storage needs grow. Your volume will grow in increments of 10 GB up to a maximum of 64 TB. You don't need to provision excess storage for your database to handle future growth.

  Reference: https://aws.amazon.com/rds/aurora/mysql-features/

• Question 1955:

  Which mechanism allows developers to access AWS services from application code?

  A. AWS Software Development Kit

  B. AWS Management Console

  C. AWS CodePipeline

  D. AWS Config

  Correct Answer: A

  Reference: https://aws.amazon.com/tools/

• Question 1956:

  Which Amazon EC2 pricing model is the MOST cost efficient for an uninterruptible workload that runs once a year for 24 hours?

  A. On-Demand Instances

  B. Reserved Instances

  C. Spot Instances

  D. Dedicated Instances

  Correct Answer: A

  With On-Demand instances, you pay for compute capacity by the hour or the second depending on which instances you run. No longer-term commitments or upfront payments are needed. You can increase or decrease your compute capacity depending on the demands of your application and only pay the specified per hourly rates for the instance you use.

  Reference: https://aws.amazon.com/ec2/pricing/

• Question 1957:

  Which of the following is an important architectural principle when designing cloud applications?

  A. Store data and backups in the same region.

  B. Design tightly coupled system components.

  C. Avoid multi-threading.

  D. Design for failure.

  Correct Answer: D

  There are six design principles for operational excellence in the cloud:

  Perform operations as code Annotate documentation Make frequent, small, reversible changes Refine operations procedures frequently Anticipate failure Learn from all operational failures

  Reference: https://aws.amazon.com/blogs/apn/the-5-pillars-of-the-aws-well-architected-framework/

• Question 1958:

  What is an advantage of using the AWS Cloud over a traditional on-premises solution?

  A. Users do not have to guess about future capacity needs.

  B. Users can utilize existing hardware contracts for purchases.

  C. Users can fix costs no matter what their traffic is.

  D. Users can avoid audits by using reports from AWS.

  Correct Answer: AC

  Reference: https://data-flair.training/blogs/aws-advantages/

• Question 1959:

  Which of the following is an AWS-managed compute service?

  A. Amazon SWF

  B. Amazon EC2

  C. AWS Lambda

  D. Amazon Aurora

  Correct Answer: B

  https://aws.amazon.com/es/products/compute/

• Question 1960:

  What is the MINIMUM AWS Support plan that provides designated Technical Account Managers?

  A. Enterprise

  B. Business

  C. Developer

  D. Basic

  Correct Answer: A

  Reference: https://aws.amazon.com/premiumsupport/plans/