- A
Persist all application state in a shared database
Shared database allows any instance to serve any request.
- B
Store configuration files on each instance locally
Why wrong: Configuration per instance creates inconsistency.
- C
Store session state in a shared external cache (e.g., Redis)
External cache makes instances stateless.
- D
Use local instance storage for session data
Why wrong: Local storage ties state to a specific instance.
- E
Use sticky sessions (session affinity) on the load balancer
Why wrong: Sticky sessions route user to same instance, creating state dependency.
Question 643 of 997
CV0-004 Cloud Architecture and Design Practice Question
This CV0-004 practice question tests your understanding of cloud architecture and design. 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 is designing stateless application tiers to support horizontal scaling. Which TWO design principles support statelessness? (Select TWO.)
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
✓
Persist all application state in a shared database
Storing session state in an external cache or database makes the application stateless. Local storage is stateful. Sticky sessions break statelessness. Using configuration files per instance is stateful.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Persist all application state in a shared database
Why this is correct
Shared database allows any instance to serve any request.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Store configuration files on each instance locally
Why it's wrong here
Configuration per instance creates inconsistency.
- ✓
Store session state in a shared external cache (e.g., Redis)
Why this is correct
External cache makes instances stateless.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Use local instance storage for session data
Why it's wrong here
Local storage ties state to a specific instance.
- ✗
Use sticky sessions (session affinity) on the load balancer
Why it's wrong here
Sticky sessions route user to same instance, creating state dependency.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
- Use explanations to understand the rule behind the answer.
TExam Day Tips
- Underline the problem statement mentally.
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the CV0-004 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Identify which CV0-004 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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Cloud Architecture and Design — study guide chapter
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FAQ
Questions learners often ask
What does this CV0-004 question test?
Cloud Architecture and Design — This question tests Cloud Architecture and Design — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Persist all application state in a shared database — Storing session state in an external cache or database makes the application stateless. Local storage is stateful. Sticky sessions break statelessness. Using configuration files per instance is stateful.
What should I do if I get this CV0-004 question wrong?
Identify which CV0-004 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jul 4, 2026
This CV0-004 practice question is part of Courseiva's free CompTIA 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 CV0-004 exam.
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