PCNE Practice Question: Managing, Monitoring, and Optimising Network Operations
A developer wants to enable VPC Flow Logs on a subnet to capture metadata about IP traffic. They want to reduce costs by logging only a sample of traffic. What is the default sampling rate for VPC Flow Logs?
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
✓
50%
The default sampling rate for VPC Flow Logs is 50%. This can be adjusted to reduce costs but may miss some flows.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
50%
Why this is correct
Default is 50% sampling.
- ✗
10%
Why it's wrong here
10% is not the default.
- ✗
100%
Why it's wrong here
100% sampling would log all flows, which is not the default.
- ✗
25%
Why it's wrong here
25% is not the default.
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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.