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PCNE Implementing a Virtual Private Cloud Practice Question

Network Topology
region us-central1project project-aStatus: PROVISIONEDBGP session: session-namestatus: CONNECTEDroutesReceived: 0advertised groups: ALL_SUBNETS

Refer to the exhibit. You are troubleshooting an on-premises to Cloud VPN connection with dynamic routing. The BGP session is CONNECTED, but no routes are received from the on-premises router. What is the most likely cause?

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

✓

The on-premises router is not configured to advertise routes.

The BGP session is up, but routesReceived is 0, indicating the on-premises router is not advertising routes.

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 firewall rules are blocking BGP traffic.

    Why it's wrong here

    If BGP traffic was blocked, the session would not be CONNECTED.

  • ✓

    The on-premises router is not configured to advertise routes.

    Why this is correct

    Since the BGP session is CONNECTED but no routes received, the on-premises side is not advertising.

  • ✗

    The VPN tunnel is down.

    Why it's wrong here

    The BGP session being CONNECTED indicates the tunnel is up.

  • ✗

    The cloud router is not advertising any routes.

    Why it's wrong here

    The exhibit shows advertised groups: ALL_SUBNETS, so cloud router is advertising.

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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.