PCNE Implementing a Virtual Private Cloud Practice Question

A company uses VPC Flow Logs for traffic analysis. They notice that logs are missing for a specific Compute Engine instance that handles high traffic. The subnet has Flow Logs enabled. What is the most likely reason?

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

✓

Flow Logs are sampled and may drop high-throughput traffic.

VPC Flow Logs use sampling; high throughput can lead to sampling reduction or dropped logs.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

✗
The instance is using Private Google Access.
Why it's wrong here
Private Google Access does not affect Flow Logs.
✓
Flow Logs are sampled and may drop high-throughput traffic.
Why this is correct
Flow Logs sample traffic, and at high throughput, sampling rate may be reduced or logs dropped.
✗
The instance's network interface has an external IP.
Why it's wrong here
External IP does not prevent Flow Logs from being generated.
✗
The instance is in a different region from the log sink.
Why it's wrong here
Log sink region is independent; Flow Logs are generated at the subnet level.

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PCNE Implementing a Virtual Private Cloud Practice Question

Why each option matters

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