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PCNSE · Question #753

PCNSE Question #753: Real Exam Question with Answer & Explanation

The correct answer is D: HA4. In Palo Alto Networks HA clustering configurations (particularly for large-scale deployments such as PA-7000 Series), HA4 is the designated link used for bulk session synchronization when a new cluster member joins and needs to receive the full existing session table from its pee

Submitted by marco_it· Apr 18, 2026Deploy and Configure

Question

When a new firewall joins a high availability (HA) cluster, the cluster members will synchronize all existing sessions over which HA port?

Options

  • AHA1
  • BHA2
  • CHA3
  • DHA4

Explanation

In Palo Alto Networks HA clustering configurations (particularly for large-scale deployments such as PA-7000 Series), HA4 is the designated link used for bulk session synchronization when a new cluster member joins and needs to receive the full existing session table from its peers. HA1 carries control-plane heartbeat and HA state information. HA2 handles ongoing incremental session state synchronization during normal operation. HA3 is used in active-active configurations for packet forwarding between peers. HA4 handles the large-volume bulk synchronization required when a new node joins the cluster.

Topics

#High Availability#Session Synchronization#HA Port Roles#Palo Alto Networks

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