Module 3: Sharing VPC Networks
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In this post, I provide complete, accurate, and detailed explanations for the answers to Module 3: Sharing VPC Networks of Course 3: Networking in Google Cloud: Fundamentals – Preparing for Google Cloud Certification: Cloud Security Engineer Professional Certificate.
Whether you’re preparing for quizzes or brushing up on your knowledge, these insights will help you master the concepts effectively. Let’s dive into the correct answers and detailed explanations for each question!
Quiz 2
Graded Assignment
1. How does VPC Peering exchange routing information between two peered VPCs?
- It uses Border Gateway Protocol (BGP) to dynamically exchange routes.
- It requires manual configuration of static routes in each VPC’s route table.
- It automatically discovers and propagates routes through the Google Cloud Router. ✅
- It relies on the default route table to forward traffic between the VPCs.
Explanation:
VPC Peering in Google Cloud automatically exchanges route information using Google’s internal systems. When using custom dynamic routes, these routes are propagated via Cloud Routers. This allows each VPC to learn routes from the other without needing manual route configuration or external routing protocols like BGP.
2. Which of the following statements about VPC Network Peering is correct?
- Transitive peering is not supported. ✅
- Peered VPC networks do not remain administratively separate.
- Subnet IP ranges can overlap across peered VPC networks.
- Both sides of a peering association are set up in one single step.
Explanation:
VPC Network Peering only allows direct communication between the two VPCs involved. Transitive peering (A connected to B, B connected to C, so A can talk to C) is not supported in Google Cloud. Each peering must be explicit and bidirectional.
3. Which of the following approaches to multi-project networking uses a centralized network administration model?
- VPC Network Peering
- Shared VPC ✅
- Cloud VPN
- Cloud VPN and Shared VPC
Explanation:
A Shared VPC lets you connect resources from multiple service projects to a single host project’s VPC network. This allows centralized control over network policies and routing, which is ideal for large organizations needing centralized network administration.
Related contents:
Module 2: VPC Networking Fundamentals
Module 4: Network Monitoring and Logging
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