200-301 Question 352
Select 3A company is deploying a network with high availability requirements for its default gateway. They decide to implement a first hop redundancy protocol (FHRP). Which of the following protocols can be used to provide this functionality?
- A
Hot Standby Router Protocol (HSRP)
- B
Virtual Router Redundancy Protocol (VRRP)
- C
Border Gateway Protocol (BGP)
- D
Gateway Load Balancing Protocol (GLBP)
- E
Enhanced Interior Gateway Routing Protocol (EIGRP)
Show answer and explanation
Correct answers: A, B, D
Explanation
First Hop Redundancy Protocols (FHRPs) like HSRP, VRRP, and GLBP are specifically designed to provide redundancy and high availability for the default gateway, ensuring continuous connectivity in case of a router failure. BGP and EIGRP, on the other hand, are routing protocols and do not serve the purpose of providing gateway redundancy.
- A. Correct.
HSRP is a Cisco-proprietary FHRP designed to ensure high availability for the default gateway by providing a backup router in case the primary fails.
- B. Correct.
VRRP is an open standard FHRP that allows multiple routers to provide redundancy for the default gateway.
- C. Incorrect.
BGP is a routing protocol used for exchanging routing information between autonomous systems, not for providing gateway redundancy.
- D. Correct.
GLBP is a Cisco-proprietary FHRP that not only provides redundancy but also load balancing among multiple gateways.
- E. Incorrect.
EIGRP is a routing protocol used for exchanging routing information within an autonomous system, not for providing gateway redundancy.