- A
Create a CNAME record pointing to the Cloud CDN IP
Why wrong: DNS configuration does not provide access control.
- B
Use IAM conditions on Cloud Storage to restrict access
Why wrong: IAM conditions do not work with Cloud CDN for signed URLs.
- C
Use Cloud Armor with IP allowlists
Why wrong: Cloud Armor can restrict by IP but does not generate signed URLs.
- D
Use Cloud CDN signed cookies with a key defined in the backend bucket
Signed cookies allow access to multiple objects or paths.
- E
Use Cloud CDN signed URLs with a key defined in the backend bucket
Signed URLs allow time-limited access to individual objects.
Question 898 of 1,000
PCNE Configuring Network Services Practice Question
This PCNE practice question tests your understanding of configuring network services. 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.
A company wants to serve private content over Cloud CDN with access control. They need to generate time-limited URLs that allow users to download files from Cloud Storage. Which TWO methods can they use? (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 Cloud CDN signed cookies with a key defined in the backend bucket
Cloud CDN supports signed URLs and signed cookies to control access to private content. IAM conditions are not supported directly with Cloud CDN. CNAME records are DNS configuration, not access control. Cloud Armor is for security policies but not for generating signed URLs.
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.
- ✗
Create a CNAME record pointing to the Cloud CDN IP
Why it's wrong here
DNS configuration does not provide access control.
- ✗
Use IAM conditions on Cloud Storage to restrict access
Why it's wrong here
IAM conditions do not work with Cloud CDN for signed URLs.
- ✗
Use Cloud Armor with IP allowlists
Why it's wrong here
Cloud Armor can restrict by IP but does not generate signed URLs.
- ✓
Use Cloud CDN signed cookies with a key defined in the backend bucket
Why this is correct
Signed cookies allow access to multiple objects or paths.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
Use Cloud CDN signed URLs with a key defined in the backend bucket
Why this is correct
Signed URLs allow time-limited access to individual objects.
Related concept
Read the scenario before looking for a memorised answer.
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 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.
Quick reference
Common DNS Record Types
| Record | Purpose | Example |
|---|---|---|
| A | IPv4 address mapping | example.com → 93.184.216.34 |
| AAAA | IPv6 address mapping | example.com → 2606:2800::1 |
| CNAME | Alias to another hostname | www → example.com |
| MX | Mail server for domain | example.com → mail.example.com (priority 10) |
| TXT | Text data (SPF, DKIM, verification) | v=spf1 include:_spf.example.com ~all |
| NS | Authoritative name servers | example.com NS ns1.example.com |
| PTR | Reverse DNS (IP → hostname) | 34.216.184.93.in-addr.arpa → example.com |
| SOA | Zone authority record | Primary NS, admin email, serial, TTL defaults |
What to study next
Got this wrong? Here's your next step.
Identify which PCNE 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.
- →
Configuring Network Services — study guide chapter
Learn the concepts, then practise the questions
- →
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FAQ
Questions learners often ask
What does this PCNE question test?
Configuring Network Services — This question tests Configuring Network Services — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use Cloud CDN signed cookies with a key defined in the backend bucket — Cloud CDN supports signed URLs and signed cookies to control access to private content. IAM conditions are not supported directly with Cloud CDN. CNAME records are DNS configuration, not access control. Cloud Armor is for security policies but not for generating signed URLs.
What should I do if I get this PCNE question wrong?
Identify which PCNE 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 →
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Last reviewed: Jul 4, 2026
This PCNE 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 PCNE exam.
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