CCNA HSRP Questions

CCNA HSRP Questions

What is the Hot Standby Router Protocol (HSRP)?

The Hot Standby Router Protocol (HSRP) is a Cisco proprietary redundancy protocol that allows two or more routers to work together in a group and provide redundancy for the connected hosts. HSRP ensures that if one router fails, another standby router can take over and continue handling network traffic seamlessly.

Why is HSRP important for network reliability?

HSRP plays a crucial role in improving network reliability by providing automatic failover capabilities. When properly configured, HSRP allows for continuous network operation, even if a primary router experiences an issue.

Important CCNA HSRP Interview Questions

Question 1: What is the purpose of HSRP?

HSRP is used to provide redundancy and high availability in a network. By creating a standby group of routers, HSRP ensures that if the primary router fails, the standby router can take over and continue processing network traffic seamlessly.

Question 2: How does HSRP elect the active router?

HSRP elects the active router based on the configured priority values. The router with the highest priority becomes the active router. If priorities are equal, the router with the highest IP address for the HSRP virtual interface becomes the active router.

Question 3: What is preemption in HSRP?

Preemption is a feature in HSRP that allows a higher priority router to take over the active role from a lower priority router, even if the lower priority router becomes available again. With preemption enabled, a higher priority router can always regain control once it is back online.

Question 4: How do you configure HSRP on Cisco routers?

To configure HSRP on a Cisco router, you need to:

  1. Create a virtual IP address for the HSRP group.
  2. Assign a priority value to each router participating in the HSRP group.
  3. Specify the HSRP version (either version 1 or version 2).
  4. Define the authentication method (if required).
  5. Assign a unique virtual MAC address to the HSRP group.

Conclusion

HSRP is a powerful protocol that enhances network reliability and availability. Understanding its concepts and configuration is important for network administrators and CCNA certification candidates. By implementing HSRP, organizations can ensure seamless network operation even in the event of router failures.

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