The answer is to increase the time-to-live (TTL) for cached items. By extending the TTL, data remains in the cache for a longer duration, directly reducing the frequency of cache misses and the subsequent load on the database. This works because a higher TTL means cached responses are served for more requests before expiring, improving the overall cache hit ratio. On the AZ-204 exam, this concept tests your understanding of cache expiration strategies and their impact on performance; a common trap is confusing cache size or eviction policies with hit ratio, but TTL is the primary lever for retention. Remember the memory tip: “TTL keeps it real” — a longer TTL means the cache holds data longer, keeping your hit ratio high and your database happy.
AZ-204 Practice Question: Connect to and consume Azure services and third-party services
This AZ-204 practice question tests your understanding of connect to and consume azure services and third-party services. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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.
An application uses Azure Redis Cache to improve performance. The team notices that cache misses are high and the cache is not effectively reducing database load. What should they do to improve cache hit ratio?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Increase the time-to-live (TTL) for cached items
Increasing TTL keeps data in cache longer, reducing misses. Option A is wrong because increasing cache size does not guarantee better hit ratio. Option C is wrong because manual invalidation may increase misses. Option D is wrong because eviction policy affects which data is removed, not hit ratio directly.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Increase the cache size
Why it's wrong here
Larger cache may not improve hit ratio if data is not cached effectively.
✓
Increase the time-to-live (TTL) for cached items
Why this is correct
Longer TTL keeps data in cache, reducing misses.
Related concept
Static NAT maps one inside address to one outside address.
✗
Implement cache-aside pattern with manual invalidation
Why it's wrong here
Manual invalidation may lead to more misses if not done correctly.
✗
Change the eviction policy to allkeys-lfu
Why it's wrong here
Eviction policy affects which keys are removed, but hit ratio depends on caching strategy.
Common exam traps
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
Static NAT maps one inside address to one outside address.
PAT allows many inside hosts to share one public address using ports.
Inside local and inside global describe the private and translated addresses.
NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
→Identify inside and outside interfaces first.
→Check whether the scenario needs static NAT, dynamic NAT or PAT.
→Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Real-world example
How this comes up in practice
A cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this AZ-204 question in full detail.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related AZ-204 NAT questions on configuration and troubleshooting.
Connect to and consume Azure services and third-party services — This question tests Connect to and consume Azure services and third-party services — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Increase the time-to-live (TTL) for cached items — Increasing TTL keeps data in cache longer, reducing misses. Option A is wrong because increasing cache size does not guarantee better hit ratio. Option C is wrong because manual invalidation may increase misses. Option D is wrong because eviction policy affects which data is removed, not hit ratio directly.
What should I do if I get this AZ-204 question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related AZ-204 NAT questions on configuration and troubleshooting.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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.