VNet peering for connectivity in Azure - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is VNet peering in Azure?

VNet peering connects two virtual networks in Azure so they can communicate directly and privately, like connecting two rooms with a door.

intermediate

Can VNets in different regions be peered in Azure?

Yes, Azure supports global VNet peering, allowing VNets in different regions to connect securely and with low latency.

beginner

Does VNet peering require a VPN or gateway?

No, VNet peering connects VNets directly without needing a VPN or gateway, making communication faster and simpler.

intermediate

What is a key limitation of VNet peering regarding overlapping IP address spaces?

VNets with overlapping IP address ranges cannot be peered because the network traffic would be confused about where to send data.

intermediate

How does VNet peering affect network latency and bandwidth?

VNet peering provides low latency and high bandwidth because it uses Azure's backbone network directly without extra hops.

What does VNet peering allow you to do in Azure?

A Create a VPN connection to on-premises network

B Connect two VNets to communicate privately

C Share storage accounts between VNets

D Automatically assign public IPs to VNets

VNet peering connects two VNets so they can communicate privately and directly.

Which of these is NOT required for VNet peering?

A VPN gateway

B Non-overlapping IP address spaces

C Azure subscription

D Virtual networks

VNet peering does not require a VPN gateway; it connects VNets directly.

Can you peer VNets across different Azure regions?

A Only if they share the same subscription

B No, VNets must be in the same region

C Only if they use the same IP range

D Yes, with global VNet peering

Azure supports global VNet peering to connect VNets across regions.

What happens if two VNets have overlapping IP address ranges?

A They cannot be peered

B They peer automatically

C Traffic is routed through VPN

D Azure assigns new IPs automatically

Overlapping IP ranges prevent VNet peering because routing would be ambiguous.

Which network does VNet peering use to connect VNets?

A Third-party VPN service

B Public internet

C Azure backbone network

D Customer's on-premises network

VNet peering uses Azure's private backbone network for fast and secure connectivity.

Explain how VNet peering works and why it is useful for connecting Azure virtual networks.

Think about how two separate rooms can be connected by a door for easy access.

Describe the limitations or conditions that must be met to successfully peer two VNets in Azure.

Consider what might cause confusion in network traffic and what setup steps are needed.