Amazon Amazon Certifications CLF-C02 Questions & Answers

• Question 171:

  What is the purpose of having an internet gateway within a VPC?

  A. To create a VPN connection to the VPC

  B. To allow communication between the VPC and the internet

  C. To impose bandwidth constraints on internet traffic

  D. To load balance traffic from the internet across Amazon EC2 instances

  Correct Answer: B

  "An internet gateway is a horizontally scaled, redundant, and highly available VPC component that allows communication between your VPC and the internet."

  Reference: https://docs.aws.amazon.com/vpc/latest/userguide/VPC_Internet_Gateway.html

• Question 172:

  Which AWS service or feature allows a user to establish a dedicated network connection between a company's on-premises data center and the AWS Cloud?

  A. AWS Direct Connect

  B. VPC peering

  C. AWS VPN

  D. Amazon Route 53

  Correct Answer: A

  Create a dedicated network connection to AWS.

  The AWS Direct Connect cloud service is the shortest path to your AWS resources. While in transit, your network traffic remains on the AWS global network and never touches the public internet.

  https://aws.amazon.com/directconnect/

• Question 173:

  Which AWS service provides the ability to manage infrastructure as code?

  A. AWS CodePipeline

  B. AWS CodeDeploy

  C. AWS Direct Connect

  D. AWS CloudFormation

  Correct Answer: D

  "AWS CloudFormation lets you model, provision, and manage AWS and third-party resources by treating infrastructure as code."

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

• Question 174:

  An online gaming company needs to choose a purchasing option to run its Amazon EC2 instances for 1 year. The web traffic is consistent, and any increases in traffic are predictable. The EC2 instances must be online and available without

  any disruption.

  Which EC2 instance purchasing option will meet these requirements MOST cost-effectively?

  A. On-Demand Instances

  B. Reserved Instances

  C. Spot Instances

  D. Spot Fleet

  Correct Answer: B

  Amazon EC2 Reserved Instances (RI) provide a significant discount (up to 72%) compared to On-Demand pricing and provide a capacity reservation when used in a specific Availability Zone.

  Terms (avg. discount off On-Demand) - 1yr (40%), 3yr (60%)

  https://aws.amazon.com/ec2/pricing/reserved-instances/

• Question 175:

  A company is storing sensitive customer data in an Amazon S3 bucket. The company wants to protect the data from accidental deletion or overwriting. Which S3 feature should the company use to meet these requirements?

  A. S3 Lifecycle rules

  B. S3 Versioning

  C. S3 bucket policies

  D. S3 server-side encryption

  Correct Answer: B

  Versioning in Amazon S3 is a means of keeping multiple variants of an object in the same bucket. You can use the S3 Versioning feature to preserve, retrieve, and restore every version of every object stored in your buckets. Versioningenabled buckets can help you recover objects from accidental deletion or overwrite. For example, if you delete an object, Amazon S3 inserts a delete marker instead of removing the object permanently. https://docs.aws.amazon.com/AmazonS3/latest/userguide/Versioning.html

• Question 176:

  An e-learning platform needs to run an application for 2 months each year. The application will be deployed on Amazon EC2 instances. Any application downtime during those 2 months must be avoided. Which EC2 purchasing option will meet these requirements MOST cost-effectively?

  A. Reserved Instances

  B. Dedicated Hosts

  C. Spot Instances

  D. On-Demand Instances

  Correct Answer: D

  "On-Demand Instances are recommended for:

  Users that prefer the low cost and flexibility of EC2 without any upfront payment or long-term commitment

  Applications with short-term, spiky, or unpredictable workloads that cannot be interrupted

  Applications being developed or tested on EC2 for the first tim";

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

• Question 177:

  A developer wants to deploy an application quickly on AWS without manually creating the required resources. Which AWS service will meet these requirements?

  A. Amazon EC2

  B. AWS Elastic Beanstalk

  C. AWS CodeBuild

  D. Amazon Personalize

  Correct Answer: B

  "Deploy scalable web applications in minutes without the complexity of provisioning and managing underlying infrastructure."

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

• Question 178:

  A global company wants to migrate its third-party applications to the AWS Cloud. The company wants help from a global team of experts to complete the migration faster and more reliably in accordance with AWS internal best practices. Which AWS service or resource will meet these requirements?

  A. AWS Support

  B. AWS Professional Services

  C. AWS Launch Wizard

  D. AWS Managed Services (AMS)

  Correct Answer: B

  The AWS Professional Services organization is a global team of experts that can help you realize your desired business outcomes when using the AWS Cloud. We work together with your team and your chosen member of the AWS Partner

  Network (APN) to execute your enterprise cloud computing initiatives.

  https://aws.amazon.com/professional-services/

• Question 179:

  Which AWS service or tool helps users visualize, understand, and manage spending and usage over time?

  A. AWS Organizations

  B. AWS Pricing Calculator

  C. AWS Cost Explorer

  D. AWS Service Catalog

  Correct Answer: C

  AWS Cost Explorer has an easy-to-use interface that lets you visualize, understand, and manage your AWS costs and usage over time. Get started quickly by creating custom reports that analyze cost and usage data. Analyze your data at a high level (for example, total costs and usage across all accounts), or dive deeper into your cost and usage data to identify trends, pinpoint cost drivers, and detect anomalies. https://aws.amazon.com/aws-cost-management/aws-cost-explorer/

• Question 180:

  A company is using a central data platform to manage multiple types of data for its customers. The company wants to use AWS services to discover, transform, and visualize the data. Which combination of AWS services should the company use to meet these requirements? (Choose two.)

  A. AWS Glue

  B. Amazon Elastic File System (Amazon EFS)

  C. Amazon Redshift

  D. Amazon QuickSight

  E. Amazon Quantum Ledger Database (Amazon QLDB)

  Correct Answer: AD

  AWS Glue is a serverless data integration service that makes it easier to discover, prepare, move, and integrate data from multiple sources for analytics, machine learning (ML), and application development.

  https://aws.amazon.com/glue/

  Amazon QuickSight powers data-driven organizations with unified business intelligence (BI) at hyperscale. With QuickSight, all users can meet varying analytic needs from the same source of truth through modern interactive dashboards,

  paginated reports, embedded analytics, and natural language queries.

  https://aws.amazon.com/quicksight/