VPC peering in GCP - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is VPC peering in Google Cloud Platform?

VPC peering is a way to connect two Virtual Private Cloud (VPC) networks so they can communicate privately using internal IP addresses, without going through the public internet.

beginner

Can two VPC networks in different projects be peered in GCP?

Yes, VPC peering can connect VPC networks across different projects as long as they are in the same or different organizations and meet peering requirements.

intermediate

What is a key limitation of VPC peering regarding transitive peering?

VPC peering does not support transitive peering. This means if VPC A is peered with VPC B, and VPC B is peered with VPC C, VPC A cannot communicate directly with VPC C through VPC B.

beginner

How does VPC peering affect network latency and security?

VPC peering provides low latency and secure communication because traffic stays within Google's private network and does not traverse the public internet.

beginner

What must you ensure about IP address ranges before creating a VPC peering connection?

The IP address ranges of the two VPC networks must not overlap to avoid routing conflicts and ensure proper communication.

What does VPC peering allow between two VPC networks?

A Public internet access

B Shared billing accounts

C Automatic VPN setup

D Private communication using internal IPs

VPC peering enables private communication between VPCs using internal IP addresses without using the public internet.

Can VPC peering connect VPCs with overlapping IP ranges?

A Yes, always

B No, IP ranges must not overlap

C Only if in the same project

D Only with VPN

VPC peering requires that the IP address ranges of the two VPCs do not overlap to avoid routing issues.

Which of the following is NOT true about VPC peering?

A It supports transitive peering

B It keeps traffic within Google's network

C It connects VPCs privately

D It can connect VPCs across projects

VPC peering does NOT support transitive peering; direct peering is required between each pair of VPCs.

What is a benefit of VPC peering over using the public internet?

A Increased security and lower latency

B Higher latency

C Requires public IPs

D No need for firewall rules

VPC peering keeps traffic private within Google's network, improving security and reducing latency.

Which Google Cloud service is used to create VPC peering?

A Cloud VPN

B Cloud Router

C VPC Network Peering

D Cloud Interconnect

VPC Network Peering is the service used to create peering connections between VPCs.

Explain what VPC peering is and why it is useful in Google Cloud.

Think about how two separate networks can talk safely and quickly.

Describe the main limitations and requirements you must consider before setting up VPC peering.

Focus on what can block or restrict peering connections.