Virtual Private Network (VPN) Overview

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Questions and Answers

What is the primary purpose of a VPN?

To encrypt all data transfer inside a private tunnel
To connect individual devices to virtual networks
To deploy a dedicated subnet for the VPN gateway
To enable networks to safely and securely share sensitive information (correct)

What is the difference between policy-based and route-based VPNs?

Policy-based VPNs use pre-shared keys for authentication, while route-based VPNs use other authentication methods
Policy-based VPNs can only connect to a single location, while route-based VPNs can connect to multiple locations
Policy-based VPNs determine which traffic needs encryption based on IP address ranges, while route-based VPNs use routing tables (correct)
Policy-based VPNs are deployed in a dedicated subnet, while route-based VPNs are deployed in the main virtual network

Which of the following is a type of VPN connection supported by Azure VPN Gateway?

Point-to-multisite connection
Multipoint-to-multipoint connection
Peer-to-peer connection
Site-to-site connection (correct)

What is the purpose of a VPN gateway?

To enable secure and encrypted connectivity between networks (B) Signup and view all the answers

Which of the following is a limitation of Azure VPN Gateway?

You can only deploy one VPN gateway in each virtual network (D) Signup and view all the answers

What is the primary purpose of encryption in a VPN?

To prevent eavesdropping or other attacks (B) Signup and view all the answers

What is the main difference between policy-based and route-based VPN gateways?

Policy-based gateways use static IP addresses for encryption, while route-based gateways use dynamic routing protocols to decide which tunnel to use. (B) Signup and view all the answers

Which type of VPN gateway is preferred for on-premises devices?

Route-based gateways, as they are better suited for on-premises devices. (D) Signup and view all the answers

What are the high-availability configuration options for VPN gateways in Azure?

Active/standby and active/active configurations. (C) Signup and view all the answers

What is the purpose of configuring a VPN gateway as a failover path for ExpressRoute connections?

To provide redundancy in case of physical issues affecting the ExpressRoute circuit. (D) Signup and view all the answers

How long can connections be interrupted during a failover event in an active/standby VPN gateway configuration?

Connections are interrupted for up to 90 seconds during planned maintenance, and up to 3 minutes for unplanned disruptions. (D) Signup and view all the answers