What is the default interface used as the Heartbeat Backup Link for High Availability (HA)?

Prepare for the SonicWall Network Security Administrator Test with our comprehensive quiz. Utilize multiple choice questions and flashcards, complete with hints and explanations. Ace your exam with ease!

In a SonicWall High Availability (HA) setup, the Heartbeat Backup Link serves as a crucial communication channel between the primary and secondary devices. This link ensures that the two units can monitor each other's status and synchronize critical data, facilitating seamless failover when one device becomes unavailable.

The default interface designated as the Heartbeat Backup Link is commonly associated with the X3 interface. This standardization allows for uniformity and simplifies the configuration process for users. When a primary firewall is active, the X3 interface on the secondary unit is typically used to receive heartbeat signals, which relay the operational status of the primary unit.

Understanding the specific purpose of each interface is essential in firewall configuration. The X1 interface is traditionally used for WAN connectivity, X2 typically serves as a LAN interface, and X4 may be used for other auxiliary connections. By designating X3 as the default for heartbeats, SonicWall streamlines configurations and ensures that administrators can quickly implement HA features. This knowledge is critical when setting up or troubleshooting HA configurations in a SonicWall environment.

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