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Analysing and Optimising Technical and Business Processes →mediumMultiple ChoiceObjective-mapped

Google PCA Practice Question: Analysing and Optimising Technical and Business Processes

This PCA practice question tests your understanding of analysing and optimising technical and business processes. 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.

A financial services company requires a storage solution for transaction logs that must be retained for 7 years due to regulatory compliance. After 90 days, the data is rarely accessed but must be retrievable within 1 hour. After 1 year, it must be archived with retrieval within 24 hours. Which Cloud Storage lifecycle policy should they implement?

A
Transition to Coldline after 90 days, then to Archive after 1 year
Why wrong: Coldline is more expensive than Nearline for the first year; Nearline is sufficient for the 90-day requirement.
B
Transition to Nearline after 90 days, then to Archive after 1 year
Nearline provides low-cost storage with ≤1 sec retrieval; Archive provides lowest cost with ≤15 min retrieval, meeting the 1-hour and 24-hour requirements.
C
Transition to Archive after 90 days
Why wrong: Archive after 90 days is acceptable for cost but retrieval may exceed 1 hour (typically minutes). However, it's cheaper to use Nearline first to save on early access costs.
D
Transition to Standard after 90 days, then to Archive after 1 year
Why wrong: Standard is more expensive than Nearline; unnecessary cost for rarely accessed data.

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

✓

Transition to Nearline after 90 days, then to Archive after 1 year

Cloud Storage lifecycle policies allow automatic transitions between storage classes. After 90 days, data is rarely accessed but must be retrievable within 1 hour. Nearline provides low-cost storage with retrieval times in milliseconds, satisfying the 1-hour requirement. Coldline also meets retrieval times but is designed for data accessed less than once a quarter, making Nearline a better fit for this scenario where data may still be accessed occasionally. After 1 year, data must be archived with retrieval within 24 hours. Archive offers the lowest cost with retrieval times up to 15 minutes, well within the 24-hour window. Therefore, transitioning to Nearline after 90 days and then to Archive after 1 year is the correct lifecycle policy. Option A is incorrect because Coldline is intended for even less frequent access, and while it could be used, Nearline is more appropriate for the given access pattern. Options C and D do not meet the retention requirements.

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.

✗
Transition to Coldline after 90 days, then to Archive after 1 year
Why it's wrong here
Coldline is more expensive than Nearline for the first year; Nearline is sufficient for the 90-day requirement.
✓
Transition to Nearline after 90 days, then to Archive after 1 year
Why this is correct
Nearline provides low-cost storage with ≤1 sec retrieval; Archive provides lowest cost with ≤15 min retrieval, meeting the 1-hour and 24-hour requirements.
Related concept
Read the scenario before looking for a memorised answer.
✗
Transition to Archive after 90 days
Why it's wrong here
Archive after 90 days is acceptable for cost but retrieval may exceed 1 hour (typically minutes). However, it's cheaper to use Nearline first to save on early access costs.
✗
Transition to Standard after 90 days, then to Archive after 1 year
Why it's wrong here
Standard is more expensive than Nearline; unnecessary cost for rarely accessed data.

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.

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.

Identify which PCA 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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FAQ

Questions learners often ask

What does this PCA question test?

Analysing and Optimising Technical and Business Processes — This question tests Analysing and Optimising Technical and Business Processes — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: Transition to Nearline after 90 days, then to Archive after 1 year — Cloud Storage lifecycle policies allow automatic transitions between storage classes. After 90 days, data is rarely accessed but must be retrievable within 1 hour. Nearline provides low-cost storage with retrieval times in milliseconds, satisfying the 1-hour requirement. Coldline also meets retrieval times but is designed for data accessed less than once a quarter, making Nearline a better fit for this scenario where data may still be accessed occasionally. After 1 year, data must be archived with retrieval within 24 hours. Archive offers the lowest cost with retrieval times up to 15 minutes, well within the 24-hour window. Therefore, transitioning to Nearline after 90 days and then to Archive after 1 year is the correct lifecycle policy. Option A is incorrect because Coldline is intended for even less frequent access, and while it could be used, Nearline is more appropriate for the given access pattern. Options C and D do not meet the retention requirements.

What should I do if I get this PCA question wrong?

What is the key concept behind this question?

Read the scenario before looking for a memorised answer.

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