OA Exams

  • web.groovymark@gmail.com
  • November 26, 2024

Question 21

Which AWS service automates software deployments to a variety of compute services, such as EC2, Lambda, and on-premises servers?

a) AWS CloudFormation
b) AWS CodeDeploy
c) AWS CodePipeline
d) AWS Batch

Correct Answer: b) AWS CodeDeploy

Explanation: AWS CodeDeploy automates software deployments to various AWS compute services, including EC2, Lambda, and on-premises servers.

Question 22

 What is the purpose of Amazon S3 Transfer Acceleration?

a) It increases the speed of data uploads by using CloudFront edge locations.
b) It reduces storage costs by deleting old files.
c) It speeds up data processing in Amazon S3.
d) It increases encryption levels for data in transit.

Correct Answer: a) It increases the speed of data uploads by using CloudFront edge locations.

Explanation: Amazon S3 Transfer Acceleration uses CloudFront edge locations to speed up uploads of files to S3.

Question 23

What AWS service would you use to connect on-premises resources to the AWS cloud using a private connection?

a) AWS Direct Connect
b) AWS VPC Peering
c) Amazon RDS
d) Amazon EC2

Correct Answer: a) AWS Direct Connect

Explanation: AWS Direct Connect allows you to establish a dedicated network connection from your on-premises data center to AWS.

Question 24

What does an Amazon EC2 reserved instance provide?

a) Discounted, guaranteed capacity
b) Free computing capacity
c) Higher instance limits
d) Automated scaling

Correct Answer: a) Discounted, guaranteed capacity

Explanation: Reserved instances offer discounted prices for EC2 capacity that is reserved for a set period of time, guaranteeing availability.

Question 25

What AWS service allows developers to upload their code and automatically handles the deployment and scaling of the application?

a) AWS Fargate
b) AWS Lambda
c) Amazon Elastic Beanstalk
d) AWS CodeDeploy

Correct Answer: c) Amazon Elastic Beanstalk

Explanation: Amazon Elastic Beanstalk allows developers to focus on writing code, while the service automatically handles the deployment, capacity provisioning, load balancing, and scaling.

Question 26

What is the maximum file size you can upload to Amazon S3 in a single PUT operation?

a) 5 TB
b) 5 GB
c) 10 GB
d) 1 TB

Correct Answer: b) 5 GB

Explanation: The maximum file size for a single PUT operation in Amazon S3 is 5 GB. Larger files must be uploaded in parts using multipart upload.

Question 27

 Which AWS service helps detect security vulnerabilities in your applications?

a) Amazon Inspector
b) AWS CloudTrail
c) AWS Shield
d) AWS WAF

Correct Answer: a) Amazon Inspector

Explanation: Amazon Inspector automatically assesses applications for vulnerabilities and deviations from best practices.

Question 28

 Which AWS service supports the enforcement of security policies across multiple accounts using Service Control Policies (SCPs)?

a) AWS WAF
b) AWS Organizations
c) AWS IAM
d) AWS Shield

Correct Answer: b) AWS Organizations

Explanation: AWS Organizations allows administrators to manage and enforce security policies, including Service Control Policies (SCPs), across multiple AWS accounts.

Question 29

What AWS service helps you automatically recover EC2 instances from underlying hardware failures?

a) AWS EC2 Auto Recovery
b) AWS Shield
c) AWS Elastic Beanstalk
d) Amazon RDS

Correct Answer: a) AWS EC2 Auto Recovery

Explanation: EC2 Auto Recovery helps automatically recover EC2 instances from hardware failures by restarting them on different underlying hardware.

Question 30

What AWS service is used to create virtual private clouds (VPCs) with isolated network environments?

a) AWS Direct Connect
b) AWS CloudFormation
c) AWS VPC
d) Amazon EC2

Correct Answer: c) AWS VPC

Explanation: AWS Virtual Private Cloud (VPC) allows users to create isolated network environments within AWS, with control over IP addresses, subnets, and gateways.

Question 31

What is the primary purpose of AWS Config?

a) Monitor network activity
b) Track and audit resource configurations
c) Provide database backups
d) Secure application data

Correct Answer: b) Track and audit resource configurations

Explanation: AWS Config provides an inventory of your AWS resources and tracks changes to resource configurations over time.

Question 32

What AWS service is designed to provide distributed denial-of-service (DDoS) protection?

a) AWS IAM
b) AWS WAF
c) AWS Shield
d) AWS Trusted Advisor

Correct Answer: c) AWS Shield

Explanation: AWS Shield provides managed DDoS protection for AWS applications.

Question 33

What AWS service simplifies the process of building APIs by automatically creating the API endpoints?

a) Amazon RDS
b) AWS Lambda
c) Amazon API Gateway
d) AWS Step Functions

Correct Answer: c) Amazon API Gateway

Explanation: Amazon API Gateway helps create and manage APIs, making it easier to define API endpoints and manage API traffic.

Question 34

Which AWS service is used for DNS resolution?

a) AWS CloudFront
b) Amazon Route 53
c) AWS Shield
d) AWS ElastiCache

Correct Answer: b) Amazon Route 53

Explanation: Amazon Route 53 is a scalable domain name system (DNS) web service used for domain name resolution.

Question 35

Which service can help you assess the security of your AWS infrastructure?

a) AWS Inspector
b) AWS Config
c) AWS Trusted Advisor
d) Amazon GuardDuty

Correct Answer: c) AWS Trusted Advisor

Explanation: AWS Trusted Advisor provides best practices to optimize your AWS infrastructure for security, cost, and performance.

Question 36

What AWS service can be used to secure your web applications from common attacks like SQL injection?

a) AWS WAF
b) Amazon GuardDuty
c) AWS Shield
d) AWS IAM

Correct Answer: a) AWS WAF

Explanation: AWS Web Application Firewall (WAF) helps protect your web applications from common exploits that could affect application availability or compromise security.

Question 37

What AWS service allows you to detect, analyze, and respond to security threats in your AWS environment?

a) Amazon GuardDuty
b) AWS CloudTrail
c) AWS WAF
d) AWS EC2

Correct Answer: a) Amazon GuardDuty

Explanation: Amazon GuardDuty uses machine learning to detect and analyze security threats, providing alerts to help you respond to incidents.

Question 38

What AWS service can be used to provision and manage EC2 instances with auto-scaling?

a) AWS CodePipeline
b) AWS CloudFormation
c) AWS Elastic Beanstalk
d) Amazon EC2 Auto Scaling

Correct Answer: d) Amazon EC2 Auto Scaling

Explanation: Amazon EC2 Auto Scaling automatically adjusts the number of EC2 instances to maintain application availability and scale capacity.

Question 39

What is the purpose of AWS Cost Explorer?

a) To automate billing
b) To monitor API calls
c) To visualize and manage AWS cost and usage
d) To monitor network activity

Correct Answer: c) To visualize and manage AWS cost and usage

Explanation: AWS Cost Explorer provides tools to visualize, analyze, and manage your AWS cost and usage data.

Question 40

Which service allows you to collect, process, and analyze real-time streaming data?

a) Amazon SNS
b) Amazon Redshift
c) Amazon Kinesis
d) AWS CloudTrail

Correct Answer: c) Amazon Kinesis

Explanation: Amazon Kinesis allows you to collect, process, and analyze real-time streaming data for analytics and other use cases.

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