Amazon Amazon Certifications CLF-C01 Questions & Answers

• Question 61:

  Which tasks are the responsibility of AWS, according to the AWS shared responsibility model? (Select TWO.)

  A. Patch the Amazon EC2 guest operating system.

  B. Upgrade the firmware of the network infrastructure.

  C. Apply password rotation for 1AM users.

  D. Maintain the physical security of edge locations.

  E. Maintain least privilege access to the root user account.

  Correct Answer: BD

• Question 62:

  Which of the following are features of network ACLs as they are used in the AWS Cloud? (Select TWO.)

  A. They are stateless.

  B. They are stateful.

  C. They evaluate all rules before allowing traffic.

  D. They process rules in order, starting with the lowest numbered rule, when deciding whether to allow traffic.

  E. They operate at the instance level.

  Correct Answer: AD

  https://docs.aws.amazon.com/vpc/latest/userguide/vpc-network-acls.html

  Network ACLs are stateless, which means that responses to allowed inbound traffic are subject to the rules for outbound traffic (and vice versa).

  Rules are evaluated starting with the lowest numbered rule. As soon as a rule matches traffic, it's applied regardless of any higher-numbered rule that might contradict it.

• Question 63:

  A company has designed its AWS Cloud infrastructure to run its workloads effectively. The company also has protocols in place to continuously improve supporting processes. Which pillar of the AWS Well-Architected Framework does this scenario represent?

  A. Security

  B. Performance efficiency

  C. Cost optimization

  D. Operational excellence

  Correct Answer: D

  Correct answer is D-

  The Operational Excellence pillar includes the ability to support development and run workloads effectively, gain insight into their operations, and to continuously improve supporting processes and procedures to deliver business value.

• Question 64:

  Which of the following are advantages of the AWS Cloud? (Select TWO.)

  A. AWS management of user-owned infrastructure

  B. Ability to quickly change required capacity

  C. High economies of scale

  D. Increased deployment time to market

  E. Increased fixed expenses

  Correct Answer: BC

  In the 6 advantages of Cloud :

  C. Economy at scale: You profit of massive aggregation of resources consumed by all customers on the AWS platform

  B. Rapidity and Agility.

• Question 65:

  AWS has the ability to achieve lower pay-as-you-go pricing by aggregating usage across hundreds of thousands of users. This describes which advantage of the AWS Cloud?

  A. Launch globally in minutes

  B. Increase speed and agility

  C. High economies of scale

  D. No guessing about compute capacity

  Correct Answer: C

• Question 66:

  A company has a database server that is always running. The company hosts the server on Amazon EC2 instances. The instance sizes are suitable for the workload. The workload will run for 1 year.

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

  A. Standard Reserved Instances

  B. On-Demand Instances

  C. Spot Instances

  D. Convertible Reserved Instances

  Correct Answer: A

• Question 67:

  A company is developing a mobile app that needs a high-performance NoSQL database. Which AWS services could the company use for this database? (Choose two.)

  A. Amazon Aurora

  B. Amazon RDS

  C. Amazon Redshift

  D. Amazon DocumentDB (with MongoDB compatibility)

  E. Amazon DynamoDB

  Correct Answer: DE

• Question 68:

  An online company was running a workload on premises and was struggling to launch new products and features. After migrating the workload to AWS, the company can quickly launch products and features and can scale its infrastructure as required.

  Which AWS Cloud value proposition does this scenario describe?

  A. Business agility

  B. High availability

  C. Security

  D. Centralized auditing

  Correct Answer: A

  https://docs.aws.amazon.com/whitepapers/latest/aws-overview/six-advantages-of-cloud-computing.html Increase speed and agility ?In a cloud computing environment, new IT resources are only a click away, which means that you reduce the time to make those resources available to your developers from weeks to just minutes. This results in a dramatic increase in agility for the organization, since the cost and time it takes to experiment and develop is significantly lower.

• Question 69:

  A company wants to limit its employees' AWS access to a portfolio of predefined AWS resources. Which AWS solution should the company use to meet this requirement?

  A. AWS config

  B. AWS software development kits (SDKs)

  C. AWS Service Catalog

  D. AWS AppSync

  Correct Answer: C

  What is the use of service catalog in AWS?

  AWS Service Catalog allows organizations to create and manage catalogs of IT services that are approved for use on AWS. These IT services can include everything from virtual machine images, servers, software, and databases to

  complete multi-tier application architectures.

• Question 70:

  Which AWS service or feature acts as a firewall for Amazon EC2 instances?

  A. Network ACL

  B. Elastic network interface

  C. Amazon VPC

  D. Security group

  Correct Answer: D