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Deployment →hardMultiple ChoiceObjective-mapped

DVA-C02 Deployment Practice Question

This DVA-C02 practice question tests your understanding of deployment. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.

A company deploys a containerized application on Amazon ECS with Fargate launch type. The application needs to read sensitive configuration data at startup. The company requires that the data be encrypted at rest and in transit, and that the application use least-privilege permissions. Which solution meets these requirements?

Clue words in this question

Noticing these words before you look at the options changes how you read each choice.

Clue: "least"
Why it matters: You want the option with minimum overhead, fewest steps, or lowest impact — not the most feature-rich or comprehensive answer.

A
Store the configuration data in AWS Secrets Manager and retrieve it at startup using the Secrets Manager API
Why wrong: Secrets Manager is designed for secrets, not general configuration.
B
Store the configuration data in an Amazon S3 bucket and use a pre-signed URL to download it at startup
Why wrong: S3 does not natively encrypt in transit.
C
Store the configuration data in environment variables within the ECS task definition
Why wrong: Environment variables are not encrypted at rest.
D
Store the configuration data in AWS Systems Manager Parameter Store with a SecureString parameter and retrieve it using the task IAM role
Parameter Store supports encryption and least-privilege access.

Full breakdown with real-world context →

Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

✓

Store the configuration data in AWS Systems Manager Parameter Store with a SecureString parameter and retrieve it using the task IAM role

Option D is correct because AWS Systems Manager Parameter Store with SecureString encrypts the configuration data at rest using AWS KMS, and the ECS task can retrieve it over HTTPS (in transit) using the task IAM role, adhering to least-privilege permissions. Option A is incorrect because AWS Secrets Manager is designed for secrets like database credentials, not configuration data, and using it adds unnecessary cost and complexity compared to Parameter Store. Option B is incorrect because Amazon S3 with pre-signed URLs does not encrypt data at rest by default unless a bucket policy enforces server-side encryption, and the pre-signed URL provides temporary access but does not enforce least-privilege; also, transit encryption is not guaranteed unless HTTPS is enforced. Option C is incorrect because environment variables in the task definition are not encrypted at rest and may be visible in plaintext in the task definition or container logs, violating encryption requirements.

Key principle: Authentication proves identity; authorization controls what that identity can do after login. Both must work for full privileged access.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

✗
Store the configuration data in AWS Secrets Manager and retrieve it at startup using the Secrets Manager API
Why it's wrong here
Secrets Manager is designed for secrets, not general configuration.
✗
Store the configuration data in an Amazon S3 bucket and use a pre-signed URL to download it at startup
Why it's wrong here
S3 does not natively encrypt in transit.
✗
Store the configuration data in environment variables within the ECS task definition
Why it's wrong here
Environment variables are not encrypted at rest.
✓
Store the configuration data in AWS Systems Manager Parameter Store with a SecureString parameter and retrieve it using the task IAM role
Why this is correct
Parameter Store supports encryption and least-privilege access.
Clue confirmation
The clue word "least" in the question point toward this answer.
Related concept
Authentication checks who the user is.

Common exam traps

Common exam trap: authentication is not authorization

Logging in proves the user can authenticate. It does not automatically mean the user is allowed to enter privileged or configuration mode. Watch for AAA authorization, privilege level and command authorization details.

Detailed technical explanation

How to think about this question

This kind of question is testing the difference between identity and permission. A user may successfully log in to a router because authentication is working, but still fail to enter configuration mode because authorization is missing, misconfigured or mapped to a lower privilege level.

KKey Concepts to Remember

Authentication checks who the user is.
Authorization controls what the user is allowed to do after login.
Privilege levels affect access to EXEC and configuration commands.
AAA, TACACS+ and RADIUS can separate login success from command access.

TExam Day Tips

Do not assume successful login means full administrative access.
Look for words such as cannot enter configuration mode, privilege level, authorization or command access.
Separate login problems from permission problems before choosing the answer.

Key takeaway

Authentication proves identity; authorization controls what that identity can do after login. Both must work for full privileged access.

Real-world example

How this comes up in practice

A startup's cloud architect reviews their monthly bill and notices costs are higher than expected for a long-running batch job. Switching from on-demand instances to Reserved Instances — or using Spot/Preemptible VMs — can reduce compute costs by up to 72 %. Questions like this test whether you understand the tradeoffs between commitment, flexibility, and cost across cloud pricing models.

Quick reference

AWS S3 Storage Class Comparison

Storage Class	Min Duration	Retrieval	Use Case
S3 Standard	None	Immediate	Frequently accessed data
S3 Standard-IA	30 days	Immediate	Infrequent access, rapid retrieval
S3 One Zone-IA	30 days	Immediate	Non-critical infrequent data
S3 Intelligent-Tiering	None	Immediate–hours	Unknown or changing access patterns
S3 Glacier Instant	90 days	Milliseconds	Archive with instant retrieval
S3 Glacier Flexible	90 days	Minutes–hours	Archive, flexible retrieval
S3 Glacier Deep Archive	180 days	Hours	Long-term compliance archive

What to study next

Got this wrong? Here's your next step.

Review Cisco AAA concepts — authentication, authorization, and accounting. Study privilege levels (0–15), command authorization under TACACS+, and how RADIUS differs. Then practise related DVA-C02 questions on access control and AAA configuration.

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FAQ

Questions learners often ask

What does this DVA-C02 question test?

Deployment — This question tests Deployment — Authentication checks who the user is..

What is the correct answer to this question?

The correct answer is: Store the configuration data in AWS Systems Manager Parameter Store with a SecureString parameter and retrieve it using the task IAM role — Option D is correct because AWS Systems Manager Parameter Store with SecureString encrypts the configuration data at rest using AWS KMS, and the ECS task can retrieve it over HTTPS (in transit) using the task IAM role, adhering to least-privilege permissions. Option A is incorrect because AWS Secrets Manager is designed for secrets like database credentials, not configuration data, and using it adds unnecessary cost and complexity compared to Parameter Store. Option B is incorrect because Amazon S3 with pre-signed URLs does not encrypt data at rest by default unless a bucket policy enforces server-side encryption, and the pre-signed URL provides temporary access but does not enforce least-privilege; also, transit encryption is not guaranteed unless HTTPS is enforced. Option C is incorrect because environment variables in the task definition are not encrypted at rest and may be visible in plaintext in the task definition or container logs, violating encryption requirements.

What should I do if I get this DVA-C02 question wrong?

Are there clue words in this question I should notice?

Yes — watch for: "least". You want the option with minimum overhead, fewest steps, or lowest impact — not the most feature-rich or comprehensive answer.

What is the key concept behind this question?

Authentication checks who the user is.

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This DVA-C02 practice question is part of Courseiva's free Amazon Web Services certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the DVA-C02 exam.