AWS Certified Developer - Associate DVA-C02

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Free AWS Certified Developer - Associate DVA-C02 Questions

1.

A new RDS database requires secure storage and automated rotation of the administrative password. Which service meets this requirement?

  • A. Certificate Manager
  • B. KMS
  • C. Lambda Environment Variables
  • D. Secrets Manager

Explanation

Explanation
Secrets Manager is designed specifically to store and rotate sensitive credentials securely. It integrates directly with RDS for automatic password rotation. Encryption using KMS ensures strong protection of stored secrets.
Correct Answer Is:
D
2.

True or False: Tags can be used in IAM policies for access control.

  • A. True
  • B. False

Explanation

Explanation
Tags can be referenced in IAM policies to implement fine-grained access control. Policies can allow or deny actions based on resource tags. This approach enables dynamic security management.
Correct Answer Is:
A
3.

What is the purpose of the AppSpec file in AWS CodeDeploy?

  • A. Defines Lambda function environment variables
  • B. Defines the deployment process for an application
  • C. Specifies S3 bucket configuration
  • D. Manages IAM permissions

Explanation

Explanation
The AppSpec file in CodeDeploy defines how an application is deployed, including hooks and lifecycle events. It provides a structured way to automate deployments consistently. This ensures deployments are repeatable and predictable.
Correct Answer Is:
B
4.

Individual EC2 instances are provisioned ____.

  • A. Globally
  • B. In Availability Zones
  • C. To a user
  • D. In Regions

Explanation

Explanation
EC2 instances are tied to specific Availability Zones for isolation and redundancy. This provides resilience by distributing compute resources across separate physical locations. It also supports highly available architectures.
Correct Answer Is:
B
5.

What is the purpose of AWS KMS?

  • A. To host Git repositories
  • B. To encrypt S3 bucket data only
  • C. To create and control encryption keys for data security
  • D. To deploy Lambda functions automatically

Explanation

Explanation
AWS KMS provides centralized key management for encryption. It creates and controls keys for encrypting data across AWS services. Integration with AWS services simplifies secure application development.
Correct Answer Is:
C
6.

Which changes can be made to an EBS volume without downtime?

  • A. Only encryption
  • B. Volume size and type (not magnetic standard), and performance adjustments with Elastic Volumes
  • C. Changing the AZ
  • D. Changing the volume to instance store

Explanation

Explanation
Elastic Volumes allow live modification of volume size, type, and performance (except for standard magnetic). These changes do not require detaching the volume. This provides operational flexibility for scaling storage.
Correct Answer Is:
B
7.

Can instance store volumes be moved to other instances?

  • A. Yes
  • B. No

Explanation

Explanation
Instance store volumes cannot be detached and reattached to different instances. They are ephemeral storage tied to the lifecycle of the instance. Data is lost if the instance is terminated.
Correct Answer Is:
B
8.

What Lambda feature allows sharing dependencies across multiple functions?

  • A. Lambda packages
  • B. Lambda layers
  • C. Lambda modules
  • D. Lambda bundles

Explanation

Explanation
Lambda layers store shared libraries outside individual function packages. They reduce duplication and simplify dependency management. Multiple functions can reference the same layer.
Correct Answer Is:
B
9.

What is the standard and detailed monitoring frequency for CloudWatch?

  • A. Standard = 1 minute, detailed = 5 minutes
  • B. Standard = 5 minutes, detailed = 1 minute
  • C. Standard = 10 minutes, detailed = 5 minutes
  • D. Standard = 5 minutes, detailed = 10 seconds

Explanation

Explanation
Standard CloudWatch monitoring collects metrics at 5-minute intervals. Detailed monitoring is chargeable and provides 1-minute intervals. Detailed monitoring allows faster response and more granular analysis.
Correct Answer Is:
B
10.

In a CloudFormation template, which section is used to export resources for reference in other stacks?

  • A. Parameters
  • B. Outputs
  • C. Mappings
  • D. Resources

Explanation

Explanation
The Outputs section in CloudFormation allows exporting values like ARNs or resource IDs. Other stacks can import these values using cross-stack references. This facilitates modular and reusable infrastructure.
Correct Answer Is:
B

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