PCNE Practice Question: Managing, Monitoring, and Optimising Network Operations
A security team wants to capture all traffic from a Compute Engine instance for intrusion detection. Which service should be used to copy traffic to a third-party IDS appliance running on another instance?
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
✓
Packet Mirroring
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Packet Mirroring
Why this is correct
Packet Mirroring copies traffic from instances to a collector for analysis.
- ✗
Firewall Rules logging
Why it's wrong here
Firewall logging logs rule hits, not full traffic.
- ✗
VPC Flow Logs
Why it's wrong here
Flow Logs only capture metadata, not full packets.
- ✗
Cloud NAT logging
Why it's wrong here
NAT logging captures connection info, not full packets.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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.