PCNE Practice Question: Designing, planning, and prototyping a GCP network
This PCNE practice question tests your understanding of designing, planning, and prototyping a gcp network. 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.
A company is designing a global application that requires low-latency access to GCP services like Cloud Storage and BigQuery. They also need to minimize egress costs for traffic to the internet. Which network service tier should they choose for their GCP resources?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "minimum / minimize"
Why it matters: Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
Why wrong: CDN can help for web content but does not address egress costs to Google services like BigQuery.
B
Premium Tier for all resources
Premium Tier uses Google's global network, reduces latency, and egress costs are lower for many Google services.
C
Premium Tier for Compute Engine instances and Standard Tier for Cloud Storage
Why wrong: Mixing tiers is possible but not optimal; Cloud Storage access still uses Premium Tier if configured per project? Actually service tier is per project, not per service.
D
Standard Tier for all resources
Why wrong: Standard Tier routes over public internet, higher latency and potentially higher egress costs for inter-region traffic.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Premium Tier for all resources
The Premium Tier routes traffic over Google's global network backbone, providing lower latency and higher performance for accessing GCP services like Cloud Storage and BigQuery. It also minimizes egress costs to the internet by keeping traffic on Google's private network for as long as possible, reducing reliance on public transit.
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.
✗
Use a CDN to reduce latency and no specific tier
Why it's wrong here
CDN can help for web content but does not address egress costs to Google services like BigQuery.
✓
Premium Tier for all resources
Why this is correct
Premium Tier uses Google's global network, reduces latency, and egress costs are lower for many Google services.
Clue confirmation
The clue word "minimum / minimize" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Premium Tier for Compute Engine instances and Standard Tier for Cloud Storage
Why it's wrong here
Mixing tiers is possible but not optimal; Cloud Storage access still uses Premium Tier if configured per project? Actually service tier is per project, not per service.
✗
Standard Tier for all resources
Why it's wrong here
Standard Tier routes over public internet, higher latency and potentially higher egress costs for inter-region traffic.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Google Cloud often tests the misconception that Standard Tier is sufficient for global applications, but the trap here is that Standard Tier uses public internet routing, which increases both latency and egress costs, making Premium Tier the correct choice for low-latency and cost-efficient global access to GCP services.
Detailed technical explanation
How to think about this question
The Premium Tier uses Google's global fiber network and edge points of presence (PoPs) to route traffic via BGP with optimal paths, often reducing round-trip time by 30-50% compared to Standard Tier. Under the hood, Premium Tier leverages Google's private backbone and Anycast IPs to direct traffic to the nearest GCP region, while Standard Tier relies on ISP routing and public internet exchange points, which can introduce variable latency and higher egress charges due to transit provider fees.
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.
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
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.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Designing, planning, and prototyping a GCP network — This question tests Designing, planning, and prototyping a GCP network — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Premium Tier for all resources — The Premium Tier routes traffic over Google's global network backbone, providing lower latency and higher performance for accessing GCP services like Cloud Storage and BigQuery. It also minimizes egress costs to the internet by keeping traffic on Google's private network for as long as possible, reducing reliance on public transit.
What should I do if I get this PCNE question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "minimum / minimize". Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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