Hsrp Interview Questions

HSRP Interview Questions Q) What is the use of HSRP? A: HSRP is used to provide default gateway redundancy.

Q) What is the maximum number of HSRP groups can be created in the router? A: Maximum 16 groups.. Q) What is the HSRP virtual MAC address A: 0000.0c07.acxx Q) What are the maximum number of routers can be present in a group? A: Maximum 16 routers can be present in a group. Q) HSRP uses TCP or UDP? A: HSRP uses UDP port number 1985 Q) What is the Source IP & Destination IP address of HSRP Hello message? A: Source IP address = IP address of the Primary Interface Destination IP address = 224.0.0.2 Q) Is it possible to configure HSRP on Multi Layer Switch (MLS) ? A: Yes it is possible to configure HSRP on MLS (3560) switches... Q) What are the HSRP default Hello and Hold Down Timers? A: Hello Timer = 3 seconds Hold Down Timer = 10 seconds Q) What is the difference between Active and Standby router in HSRP? A: Active Router: Router which is responsible to forward the data Standby Router: Router which is the backup to active router.

Q) What is the difference between HSRP version 1 and HSRP version 2? A: 1) HSRP version 1 supports 256 groups ranging from 0 to 255, HSRP version 2 supports 4096 groups ranging from 0 to 4095 2) HSRP vesion 1 uses multicast address for sending hello messages is 224.0.0.2, HSRP version 2 uses multicast address for sending hello messages is 224.0.0.102 3) HSRP version 1 and Version 2 are having different virtual mac addresses. 4) HSRP version 2 allows support for IPV6 whereas HSRP version 1 does not support. Q) If active router LAN interface is up but line protocol is down, In this case whether standby router will become active router? A: Yes standby router will become as Active router if the interface is up but line protocol is down.. Q) What is the default priority and default group number for HSRP? A: Default Priority: 100 Default Group number: 0 Q) If you perform traceroute, which ip address you will see in the reply (Physical or virtual IP )? A: Physical IP address Q) How many states present in HSRP? A: 6 states present in HSRP 1) Initial 2) Learn 3) Listen 4)Speak

5)Standby 6) Active