The correct answer is to increase the maxmemory-reserved setting or change the eviction policy. This works because Azure Cache for Redis uses a maxmemory limit, and when that limit is reached, the eviction policy determines which keys are removed to free space. By increasing the maxmemory-reserved value, you allocate more memory exclusively for non-cache operations like replication buffers, preventing session data from being prematurely evicted. Alternatively, switching the eviction policy to allkeys-lru ensures that the least recently used keys are evicted first, which protects active session state. On the AZ-204 exam, this scenario tests your understanding of Redis memory management under load, often appearing in questions about session state persistence in microservices on AKS. A common trap is confusing persistence (RDB/AOF) with eviction prevention—persistence saves data to disk but does not stop eviction from happening. Memory tip: think of maxmemory-reserved as a “safety buffer” that keeps your session data safe from being kicked out.
AZ-204 Practice Question: Monitor, troubleshoot, and optimize Azure solutions
This AZ-204 practice question tests your understanding of monitor, troubleshoot, and optimize azure solutions. 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.
You deploy a microservices application to Azure Kubernetes Service (AKS). The application uses Azure Cache for Redis to store session state. Users report that they are frequently logged out. You suspect that the session data is being evicted from the cache. Which configuration change should you make to reduce evictions?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Increase the maxmemory-reserved setting or change eviction policy
Option B is correct because increasing the maxmemory-policy to 'allkeys-lru' or increasing memory allocation reduces evictions. Option A is wrong because enabling persistence (RDB/AOF) does not prevent evictions. Option C is wrong because enabling clustering adds complexity and does not directly reduce evictions. Option D is wrong because using a different tier with more memory is a valid solution, but the question asks for a configuration change within the existing cache instance.
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.
✗
Enable clustering for the cache
Why it's wrong here
Clustering provides scalability but does not directly reduce evictions.
✗
Enable data persistence using RDB or AOF
Why it's wrong here
Persistence saves data to disk but does not prevent evictions.
✓
Increase the maxmemory-reserved setting or change eviction policy
Why this is correct
Increasing reserved memory or using a more suitable eviction policy reduces evictions.
Related concept
Read the scenario before looking for a memorised answer.
✗
Upgrade to a higher-tier Azure Cache for Redis
Why it's wrong here
Upgrading changes the instance, not a configuration change on the current cache.
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 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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this AZ-204 question in full detail.
Identify which AZ-204 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.
Monitor, troubleshoot, and optimize Azure solutions — This question tests Monitor, troubleshoot, and optimize Azure solutions — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Increase the maxmemory-reserved setting or change eviction policy — Option B is correct because increasing the maxmemory-policy to 'allkeys-lru' or increasing memory allocation reduces evictions. Option A is wrong because enabling persistence (RDB/AOF) does not prevent evictions. Option C is wrong because enabling clustering adds complexity and does not directly reduce evictions. Option D is wrong because using a different tier with more memory is a valid solution, but the question asks for a configuration change within the existing cache instance.
What should I do if I get this AZ-204 question wrong?
Identify which AZ-204 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.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
This AZ-204 practice question is part of Courseiva's free Microsoft 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 AZ-204 exam.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.