- A
Use the gsutil -m option to enable parallel multi-threading.
Parallel multi-threading speeds up uploads of multiple files.
- B
Increase the number of retries using gsutil -o Boto:num_retries=10.
Why wrong: Increasing retries doesn't improve performance; it may reduce speed.
- C
Change the storage class of the bucket to Standard.
Why wrong: Storage class does not affect upload speed.
- D
Set the parallel composite upload threshold to a value less than the size of the files being uploaded.
Parallel composite uploads break large files into parts and upload them concurrently.
- E
Set a custom ACL on the bucket to allow faster writes.
Why wrong: ACL doesn't affect upload performance.
Question 628 of 1,000
Google ACE Deploying and Implementing a Cloud Solution Practice Question
This ACE practice question tests your understanding of deploying and implementing a cloud solution. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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 engineer is using gsutil to upload a large number of files to a Cloud Storage bucket. The upload is proceeding very slowly. Which two actions could improve the upload performance? (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
✓
Use the gsutil -m option to enable parallel multi-threading.
To improve upload performance, you can use parallel composite uploads (gsutil -o GSUtil:parallel_composite_upload_threshold=150M) and increase the number of parallel threads (gsutil -m). Option A and C are correct. Option B increases the number of retries, which may slow down. Option D changes storage class, which doesn't affect upload speed. Option E changes ACL settings.
Key principle: ACLs process entries top to bottom and stop at the first match. Entry order and interface direction matter as much as the permit or deny statement.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Use the gsutil -m option to enable parallel multi-threading.
Why this is correct
Parallel multi-threading speeds up uploads of multiple files.
Related concept
Standard ACLs match source addresses.
- ✗
Increase the number of retries using gsutil -o Boto:num_retries=10.
Why it's wrong here
Increasing retries doesn't improve performance; it may reduce speed.
- ✗
Change the storage class of the bucket to Standard.
Why it's wrong here
Storage class does not affect upload speed.
- ✓
Set the parallel composite upload threshold to a value less than the size of the files being uploaded.
Why this is correct
Parallel composite uploads break large files into parts and upload them concurrently.
Related concept
Standard ACLs match source addresses.
- ✗
Set a custom ACL on the bucket to allow faster writes.
Why it's wrong here
ACL doesn't affect upload performance.
Common exam traps
Common exam trap: ACLs stop at the first match
ACLs are processed top to bottom. The first matching entry wins, and an implicit deny usually exists at the end.
Detailed technical explanation
How to think about this question
ACL questions test precision: source, destination, protocol, port and direction. A generally correct ACL can still fail if it is applied on the wrong interface or in the wrong direction.
KKey Concepts to Remember
- Standard ACLs match source addresses.
- Extended ACLs can match source, destination, protocol and ports.
- The first matching ACL entry is used.
- There is usually an implicit deny at the end.
TExam Day Tips
- Check inbound versus outbound direction.
- Read the ACL from top to bottom.
- Look for a broader permit or deny above the intended line.
Key takeaway
ACLs process entries top to bottom and stop at the first match. Entry order and interface direction matter as much as the permit or deny statement.
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.
Visual reference
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.
Review ACL processing order, placement rules (standard near destination, extended near source), and inbound vs outbound direction. Study wildcard masks and implicit deny. Then practise related ACE ACL questions on filtering logic and placement.
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FAQ
Questions learners often ask
What does this ACE question test?
Deploying and Implementing a Cloud Solution — This question tests Deploying and Implementing a Cloud Solution — Standard ACLs match source addresses..
What is the correct answer to this question?
The correct answer is: Use the gsutil -m option to enable parallel multi-threading. — To improve upload performance, you can use parallel composite uploads (gsutil -o GSUtil:parallel_composite_upload_threshold=150M) and increase the number of parallel threads (gsutil -m). Option A and C are correct. Option B increases the number of retries, which may slow down. Option D changes storage class, which doesn't affect upload speed. Option E changes ACL settings.
What should I do if I get this ACE question wrong?
Review ACL processing order, placement rules (standard near destination, extended near source), and inbound vs outbound direction. Study wildcard masks and implicit deny. Then practise related ACE ACL questions on filtering logic and placement.
What is the key concept behind this question?
Standard ACLs match source addresses.
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Last reviewed: Jul 4, 2026
This ACE practice question is part of Courseiva's free Google Cloud 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 ACE exam.
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