Question 1

What is an Azure Virtual Network (VNet)?

Accepted Answer

An Azure Virtual Network is a logically isolated network in Azure that enables Azure resources to securely communicate with each other, the internet, and on-premises networks.

Question 2

What is the purpose of a subnet within an Azure Virtual Network?

Accepted Answer

Subnets divide a VNet into smaller, more manageable address segments, allowing you to organize and secure resources by grouping them and applying network security rules.

Question 3

What is VNet Peering in Azure?

Accepted Answer

VNet Peering connects two Azure Virtual Networks so that resources in each VNet can communicate with each other privately using Microsoft's backbone network, without requiring gateways or the public internet.

Question 4

What is Global VNet Peering?

Accepted Answer

Global VNet Peering allows you to connect Azure Virtual Networks across different Azure regions, enabling cross-region private communication over Microsoft's backbone network.

Question 5

Which Azure resource controls inbound and outbound traffic to network interfaces, VMs, and subnets using security rules?

Accepted Answer

A Network Security Group (NSG) controls traffic by defining allow or deny rules based on source, destination, port, and protocol for resources within a VNet.

Azure AZ-900: Networking Fundamentals

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