- A
Configure the cache behavior to forward all query strings but cache based on a whitelist.
This prevents multiple cache entries for different query string orders.
- B
Increase the minimum TTL for objects.
Longer TTL keeps objects in cache longer.
- C
Configure custom error responses to serve cached content on errors.
Why wrong: This doesn't improve cache hit ratio.
- D
Decrease the default TTL for objects.
Why wrong: Shorter TTL reduces cache hits.
- E
Enable automatic compression for compressible objects.
Why wrong: Compression improves performance but not cache hit ratio.
Question 1,301 of 1,746
SAP-C02 Cache hit ratio Practice Question
This SAP-C02 practice question tests your understanding of continuous improvement for existing solutions. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. A key principle to apply: cache hit ratio. 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 using Amazon CloudFront to distribute content globally. They want to improve the cache hit ratio. Which TWO actions are most effective? (Choose 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
✓
Configure the cache behavior to forward all query strings but cache based on a whitelist.
Option A is correct because forwarding all query strings but caching based on a whitelist prevents cache fragmentation from unnecessary query parameters, improving the cache hit ratio. Option B is correct because increasing the minimum TTL ensures objects remain in the cache for a longer duration, increasing the likelihood of cache hits. Option C is incorrect because custom error responses serve alternative content on errors but do not improve the cache hit ratio. Option D is incorrect because decreasing the default TTL reduces cache duration, leading to more misses. Option E is incorrect because compression improves transfer speed and reduces bandwidth, not the cache hit ratio.
Key principle: Cache hit ratio
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Configure the cache behavior to forward all query strings but cache based on a whitelist.
Why this is correct
This prevents multiple cache entries for different query string orders.
Related concept
Cache hit ratio
- ✓
Increase the minimum TTL for objects.
Why this is correct
Longer TTL keeps objects in cache longer.
Related concept
Cache hit ratio
- ✗
Configure custom error responses to serve cached content on errors.
Why it's wrong here
This doesn't improve cache hit ratio.
- ✗
Decrease the default TTL for objects.
Why it's wrong here
Shorter TTL reduces cache hits.
- ✗
Enable automatic compression for compressible objects.
Why it's wrong here
Compression improves performance but not cache hit ratio.
Common exam traps
Common exam trap: answer the scenario, not the keyword
A common trap is thinking that serving stale or cached content on errors improves cache hit ratio, but it only improves availability. Also, shortening TTL reduces cache hits, not improves.
Detailed technical explanation
How to think about this question
Treat this as a scenario question. Identify the problem, the constraint, and the best action. Then compare each option against those facts.
KKey Concepts to Remember
- Cache hit ratio
- Query string whitelist
- Time-to-Live (TTL)
TExam Day Tips
- 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
Cache hit ratio
Real-world example
How this comes up in practice
A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
What to study next
Got this wrong? Here's your next step.
Review cache hit ratio, then practise related SAP-C02 questions on the same topic to reinforce the concept.
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Continuous Improvement for Existing Solutions — study guide chapter
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FAQ
Questions learners often ask
What does this SAP-C02 question test?
Continuous Improvement for Existing Solutions — This question tests Continuous Improvement for Existing Solutions — Cache hit ratio.
What is the correct answer to this question?
The correct answer is: Configure the cache behavior to forward all query strings but cache based on a whitelist. — Option A is correct because forwarding all query strings but caching based on a whitelist prevents cache fragmentation from unnecessary query parameters, improving the cache hit ratio. Option B is correct because increasing the minimum TTL ensures objects remain in the cache for a longer duration, increasing the likelihood of cache hits. Option C is incorrect because custom error responses serve alternative content on errors but do not improve the cache hit ratio. Option D is incorrect because decreasing the default TTL reduces cache duration, leading to more misses. Option E is incorrect because compression improves transfer speed and reduces bandwidth, not the cache hit ratio.
What should I do if I get this SAP-C02 question wrong?
Review cache hit ratio, then practise related SAP-C02 questions on the same topic to reinforce the concept.
What is the key concept behind this question?
Cache hit ratio
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Last reviewed: Jun 20, 2026
This SAP-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 SAP-C02 exam.
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