- A
Consolidate resources to a single region
Moving all resources to one region eliminates cross-region egress costs entirely.
- B
Use Cloud CDN to cache static content
Cloud CDN serves content from edge caches, reducing the amount of data fetched from the origin region, thus lowering egress costs.
- C
Use Cloud Interconnect to connect to on-premises
Why wrong: Cloud Interconnect reduces egress costs for traffic to on-premises, not for traffic between regions.
- D
Use a VPN connection to on-premises
Why wrong: VPN still uses public internet egress; costs are the same as regular internet egress.
- E
Use VPC Network Peering within the same VPC network
Why wrong: Peering within the same VPC network does not incur costs, but it does not reduce inter-region egress because it is not cross-region.
PCDOE Network Egress Practice Question
This PCDOE practice question tests your understanding of managing google cloud costs. 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. A key principle to apply: network Egress. 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 moving large amounts of data between regions. Which two actions can reduce network egress costs? (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
Consolidate resources to a single region
Options A and B are correct. Consolidating resources to a single region eliminates cross-region egress, directly reducing costs. Using Cloud CDN to cache static content serves requests from edge locations, reducing egress from the origin. Options C, D, and E are incorrect: Cloud Interconnect primarily reduces egress costs to on-premises, not between regions; VPN uses the public internet and still incurs egress charges; VPC Network Peering within the same region is free but does not reduce cross-region egress, and peering across regions still incurs costs.
Key principle: Network Egress
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Consolidate resources to a single region
Why this is correct
Moving all resources to one region eliminates cross-region egress costs entirely.
Related concept
Network Egress
- ✓
Use Cloud CDN to cache static content
Why this is correct
Cloud CDN serves content from edge caches, reducing the amount of data fetched from the origin region, thus lowering egress costs.
Related concept
Network Egress
- ✗
Use Cloud Interconnect to connect to on-premises
Why it's wrong here
Cloud Interconnect reduces egress costs for traffic to on-premises, not for traffic between regions.
- ✗
Use a VPN connection to on-premises
Why it's wrong here
VPN still uses public internet egress; costs are the same as regular internet egress.
- ✗
Use VPC Network Peering within the same VPC network
Why it's wrong here
Peering within the same VPC network does not incur costs, but it does not reduce inter-region egress because it is not cross-region.
Common exam traps
Common exam trap: answer the scenario, not the keyword
A common mistake is thinking Cloud Interconnect reduces inter-region egress, but it is for on-premises connectivity. Also, VPC peering is free within the same region but does not reduce cross-region costs.
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
- Network Egress
- Cloud CDN
- Resource Consolidation
- Cloud Interconnect
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
Network Egress
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.
Review network Egress, then practise related PCDOE questions on the same topic to reinforce the concept.
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Managing Google Cloud costs — study guide chapter
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Managing Google Cloud costs practice questions
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FAQ
Questions learners often ask
What does this PCDOE question test?
Managing Google Cloud costs — This question tests Managing Google Cloud costs — Network Egress.
What is the correct answer to this question?
The correct answer is: Consolidate resources to a single region — Options A and B are correct. Consolidating resources to a single region eliminates cross-region egress, directly reducing costs. Using Cloud CDN to cache static content serves requests from edge locations, reducing egress from the origin. Options C, D, and E are incorrect: Cloud Interconnect primarily reduces egress costs to on-premises, not between regions; VPN uses the public internet and still incurs egress charges; VPC Network Peering within the same region is free but does not reduce cross-region egress, and peering across regions still incurs costs.
What should I do if I get this PCDOE question wrong?
Review network Egress, then practise related PCDOE questions on the same topic to reinforce the concept.
What is the key concept behind this question?
Network Egress
About these practice questions
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Last reviewed: Jun 24, 2026
This PCDOE 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 PCDOE exam.
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