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Managing, Monitoring, and Optimising Network Operations →mediumMultiple ChoiceObjective-mapped

PCNE Practice Question: Managing, Monitoring, and Optimising Network Operations

A company wants to analyze VPC Flow Logs to identify the top talkers (source IPs) generating the most traffic to their web servers. They have enabled VPC Flow Logs on the subnet. Where should they export the logs for cost-effective querying and analysis?

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

✓

BigQuery

BigQuery is the best choice for querying large volumes of VPC Flow Logs with SQL, enabling cost-effective analysis of top talkers. Stackdriver (Cloud Monitoring) is for metrics, not log analysis; Cloud Storage is for archival; Pub/Sub for streaming.

Answer analysis

Option-by-option breakdown

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

  • ✓

    BigQuery

    Why this is correct

    BigQuery enables SQL analysis of flow logs efficiently.

  • ✗

    Cloud Monitoring (Stackdriver)

    Why it's wrong here

    Cloud Monitoring is for metrics and alerts, not for querying log details.

  • ✗

    Cloud Pub/Sub

    Why it's wrong here

    Pub/Sub is for streaming, not for persistent querying.

  • ✗

    Cloud Storage

    Why it's wrong here

    Cloud Storage is for object storage; querying requires additional tools and is less efficient.

Visual reference

192.168.1.0 /24 256 addresses (254 usable) 192.168.1.0 /25 Subnet A 128 addr (126 usable) 192.168.1.128 /25 Subnet B 128 addr (126 usable) Borrowing 1 bit from host portion creates 2 subnets (/25)

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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.