Amazon CLF-C01 Online Practice Questions and Exam Preparation

Amazon CLF-C01 Online Questions & Answers

• Question 391:

  Which feature adds elasticity to Amazon EC2 instances to handle the changing demand for workloads?

  A. Resource groups
  B. Lifecycle policies
  C. Application Load Balancer
  D. Amazon EC2 Auto Scaling
  D. Amazon EC2 Auto Scaling

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  Explanation/Reference:

  Support for monitoring the health of each service independently, as health checks are defined at the target group level and many CloudWatch metrics are reported at the target group level. Attaching a target group to an Auto Scaling group enables you to scale each service dynamically based on demand.

  Reference: https://docs.aws.amazon.com/elasticloadbalancing/latest/application/introduction.html

• Question 392:

  Which option is an advantage of AWS Cloud computing that minimizes variable costs?

  A. High availability
  B. Economies of scale
  C. Global reach
  D. Agility
  B. Economies of scale

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  Explanation/Reference:

  B. Economies of scale

  Economies of scale is an advantage of AWS Cloud computing that minimizes variable costs. AWS Cloud computing allows customers to pay only for the resources they use, and as they scale their usage up or down, their costs also scale. This allows customers to take advantage of the economies of scale that come with using a large, shared infrastructure. AWS can spread the fixed costs of running a large, global infrastructure across many customers, which allows them to offer lower variable costs for compute, storage, and other services.

  A. High availability: High availability refers to a system or service that is always operational and accessible to users. It does not minimize variable costs.

  C. Global reach: Global reach refers to the ability to access AWS services from anywhere around the world. It does not minimize variable costs.

  D. Agility: Agility refers to the ability to quickly and easily provision, scale, and manage resources. It does not minimize variable costs.

• Question 393:

  A company is launching an e-commerce site that will store and process credit card data. The company requires information about AWS compliance reports and AWS agreements.

  Which AWS service provides on-demand access to these items?

  A. AWS Certificate Manager
  B. AWS Config
  C. AWS Artifact
  D. AWS CloudTrail
  C. AWS Artifact

• Question 394:

  A company needs to simultaneously process hundreds of requests from different users. Which combination of AWS services should the company use to build an operationally efficient solution?

  A. Amazon Simple Queue Service (Amazon SQS) and AWS Lambda
  B. AWS Data Pipeline and Amazon EC2
  C. Amazon Kinesis and Amazon Athena
  D. AWS Amplify and AWS AppSync
  A. Amazon Simple Queue Service (Amazon SQS) and AWS Lambda

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  Explanation/Reference:

  Data pipeline is not relevant for this question- it moves data between AWS compute / storage services and on prem data.

• Question 395:

  Which of the following is a design principle of the reliability pillar of the AWS Well-Architected Framework?

  A. Scale globally in minutes.
  B. Adopt a consumption model.
  C. Automatically recover from failure.
  D. Make frequent, small, reversible changes.
  C. Automatically recover from failure.

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  Explanation/Reference:

  Automatically recover from failure: By monitoring a workload for key performance indicators (KPIs), you can trigger automation when a threshold is breached. These KPIs should be a measure of business value, not of the technical aspects of the operation of the service. This allows for automatic notification and tracking of failures, and for automated recovery processes that work around or repair the failure. With more sophisticated automation, it's possible to anticipate and remediate failures before they occur.

  Ref link: https://docs.aws.amazon.com/wellarchitected/latest/reliability-pillar/design-principles.html

• Question 396:

  A company has a serverless application that includes an Amazon API Gateway API, an AWS Lambda function, and an Amazon DynamoDB database.

  Which AWS service can the company use to trace user requests as they move through the application's components?

  A. AWS CloudTrail
  B. Amazon CloudWatch
  C. Amazon Inspector
  D. AWS X-Ray
  D. AWS X-Ray

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  Explanation/Reference:

  X-ray- https://aws.amazon.com/xray/

  CloudTrail- audit Cloudwatch- monitor Inspector- vulnerability management X-Ray- tracing

• Question 397:

  One of the advantages to moving infrastructure from an on-premises data center to the AWS Cloud is:

  A. it allows the business to eliminate IT bills.
  B. it allows the business to put a server in each customer's data center.
  C. it allows the business to focus on business activities.
  D. it allows the business to leave servers unpatched.
  C. it allows the business to focus on business activities.

• Question 398:

  A company wants to create a set of custom dashboards to collect metrics to monitor its applications. Which AWS service will meet these requirements?

  A. Amazon CloudWatch
  B. AWS X-Ray
  C. AWS Systems Manager
  D. AWS CloudTrail
  A. Amazon CloudWatch

• Question 399:

  A company plans to launch an application that will run in multiple locations within the United States. The company needs to identify the two AWS Regions where the application can operate at the lowest price. Which AWS service or feature should the company use to determine the Regions that offer the lowest price?

  A. Cost Explorer
  B. AWS Budgets
  C. AWS Trusted Advisor
  D. AWS Pricing Calculator
  D. AWS Pricing Calculator

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  Explanation/Reference:

  The AWS service that the company can use to determine the Regions that offer the lowest price for their application is D. AWS Pricing Calculator. The AWS Pricing Calculator is a web-based tool that allows customers to estimate their monthly bill based on their expected usage of various AWS services, including compute, storage, database, and networking. The calculator provides pricing information for all AWS Regions, allowing customers to compare prices and choose the most cost-effective Region for their application. By selecting the AWS services that their application will use and estimating their usage, the company can use the Pricing Calculator to determine the Regions that offer the lowest price.

• Question 400:

  A company needs to use AWS Identity and Access Management (IAM) to attach an IAM policy to all IAM users in an AWS account.

  Which solution meets this requirement?

  A. Attach the IAM policy to each IAM user.
  B. Attach the IAM policy to the IAM group containing all the IAM users.
  C. Attach the IAM policy to the IAM role containing all the IAM users.
  D. Apply the IAM policy to the entire AWS account.
  C. Attach the IAM policy to the IAM role containing all the IAM users.