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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 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 Signup and view all the answers

What is the primary purpose of encryption in a VPN?

To prevent eavesdropping or other attacks 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. 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. Signup and view all the answers

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

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