M6Q26: First Hop Redundancy Flashcards
First Hop Redundancy provides high availability of network gateways through redundant ______________________?
A. IP Gateways
B. Layer 2 only Gateways
C. Virtual Switches
D. LANs
A. IP Gateways
Explanation: The concept of First Hop Redundancy is to provide two or more redundant IP Gateways for a Local Area Network. This way, if one gateway fails the hosts will still have a second gateway in the case the primary one fails or otherwise goes offline.
The following First Hop Redundancy Protocol is a non-proprietary, open-source, and widely used protocol.
A. HSRP
B. GLBP
C. VRRP
C. VRRP
Explanation: VRRP (Virtual Router Redundancy Protocol) is an open IEEE standard First Hop Redundancy protocol. The fact that it is an open standard means it can be found on routers from many different manufacturers. The Protocols HSRP and GLBP are proprietary to Cisco Systems.
The term HSRP refers to ________________________
A. Host Standby Router Protocol
B. Host Standard Router Protocol
C. Hot Standby Router Protocol
D. Hot Standard Router Protocol
C. Hot Standby Router Protocol
Explanation: HSRP (Hot Standby Router Protocol) is a Cisco proprietary First Hop Redundancy Protocol.
The main goal of First Hop Redundancy is that if even one gateway router fails the hosts on the network will never lose connectivity to ___________________.
A. other hosts on their own network
B. their switch
C. themselves
D. their default gateway
D. their default gateway
Explanation: Hosts on a LAN need to access their default gateway (the router on their LAN) to get to other networks and to the internet. With First Hop Redundancy we incorporate high availability of the default gateway and hosts on the LAN will not lose connection to their default gateway if the main router fails.
A Layer 3 switch can also participate in First Hop Redundancy.
A. True
B. False
A. True
Explanation: Layer 3 switches are capable of routing and can also run First Hop Redundancy protocols. In many networks a Layer 3 switches serve as the default gateway for the hosts on the LAN and therefore need to support protocols like VRRP and HSRP.
