CCNA: Cisco Certified Network Associate — Question 877

Which Cisco proprietary protocol ensures traffic recovers immediately, transparently, and automatically when edge devices or access circuits fail?

Answer options

• A. FHRP
• B. VRRP
• C. HSRP
• D. SLB

Correct answer: C

Explanation

The correct answer is HSRP (Hot Standby Router Protocol), which allows for automatic failover between routers to ensure continuous traffic flow. FHRP (First Hop Redundancy Protocol) is a broader category that includes HSRP but does not specify its immediate recovery capabilities. VRRP (Virtual Router Redundancy Protocol) is similar to HSRP but is not Cisco proprietary, and SLB (Server Load Balancing) does not relate to edge device redundancy.