Amazon Web Services Updated CLF-C02 Exam Questions and Answers by lennie

Amazon EC2 (Elastic Compute Cloud)provides scalable computing capacity in the AWS Cloud, allowing customers to run virtual servers (instances) with different configurations of CPU, memory, storage, and networking capacity. This flexibility is ideal for applications that require specific infrastructure configurations, such as custom marketing and order-processing applications.

A. AWS Lambda: Incorrect, as it is a serverless compute service that automatically manages the computing resources needed to run code but does not offer the flexibility of choosing different instance types.

B. Amazon Cognito: Incorrect, as it is used for user authentication and authorization, not for deploying applications.

C. Amazon Athena: Incorrect, as it is an interactive query service for analyzing data in Amazon S3 using standard SQL.

AWS Cloud References:

Amazon EC2

AWS Lambdais a serverless compute service that allows users to run code in response to events without provisioning or managing servers. It automatically scales the application by running code only when needed, and users are charged only for the compute time consumed. This service is ideal for applications that require event-driven compute functions.

B. AWS CloudFormation: Incorrect, as it is an infrastructure-as-code service that helps users automate the deployment of AWS resources, not a serverless compute service.

C. AWS Elastic Beanstalk: Incorrect, as it is a Platform-as-a-Service (PaaS) that still involves managing servers, even though it abstracts much of the infrastructure management.

D. Elastic Load Balancing: Incorrect, as it is a service for distributing incoming application or network traffic across multiple targets, not a serverless compute service.

AWS Cloud References:

AWS Lambda

AnIAM useris created when the company needs to provide unique credentials (username and password) to individuals who need access to the AWS Management Console or programmatic access (using access keys) to AWS services.

B. When the company creates AWS access credentials for individuals: Correct, as an IAM user is created to provide credentials for specific individuals.

D. When the company needs to add users to IAM groups: Correct, as IAM users can be added to groups to apply permissions and policies at a group level.

A. When an application that runs on Amazon EC2 instances requires access to other AWS services: Incorrect, as an IAM role is more appropriate for applications running on EC2 to assume temporary credentials.

C. When the company creates an application that runs on a mobile phone that makes requests to AWS: Incorrect, as using Cognito or a role with temporary credentials is more suitable.

E. When users are authenticated in the corporate network and want to be able to use AWS without having to sign in a second time: Incorrect, as this use case typically involves IAM roles combined with AWS Single Sign-On (SSO).

AWS Cloud References:

IAM Users and Groups

IAM Roles

AWS Secrets Manager is a service that helps you protect access to your applications, services, and IT resources. This service enables you to easily rotate, manage, and retrieve database credentials, API keys, and other secrets throughout their lifecycle. Users and applications retrieve secrets with a call to Secrets Manager APIs, eliminating the need to hardcode sensitive information in plain text. Secrets Manager offers secret rotation with built-in integration for Amazon RDS, Amazon Redshift, Amazon DocumentDB, and other AWS services1. You can also extend Secrets Manager to rotate other types of secrets, such as credentials for Oracle, SQL Server, or MongoDB databases, by using custom AWS Lambda functions2. Secrets Manager enables you to control access to secrets using fine-grained permissions and audit secret rotation centrally for resources in the AWS Cloud, third-party services, and on-premises3. Therefore, AWS Secrets Manager supports the requirement of rotating database user credentials with the least amount of operational overhead, compared to the other options. References:

What Is AWS Secrets Manager? - AWS Secrets Manager

Rotating Your AWS Secrets Manager Secrets - AWS Secrets Manager

AWS Secrets Manager Features - AWS Secrets Manager