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Appendix
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Answers to Practice Test Questions
235. D. The router with the highest priority will become the AVG. However, if all routers have
the same priority, then the router with the highest IP address configured becomes the
tiebreaker. The router with the highest priority and highest IP address will become the
AVG, not the one with the lowest priority and lowest IP address.
236. B. Gateway Load Balancing Protocol (GLBP) supports up to 4 active virtual forwarders
per GLBP group. All other answers are incorrect.
237. A. The command
standby 1 priority 150 will set the HSRP group of 1 on this
router to a priority of 150. As long as all other routers are set to the default of 100,
this router will become the default router on the next election. The command
standby 1 priority 70 is incorrect. The command hsrp 1 priority 150 is incorrect.
The command
hsrp 1 priority 90 is incorrect.
238. D. You can create up to 4,096 HSRP groups on a router with HSRPv2. This would
include group 0 to 4095 for a total of 4,096 groups. HSRPv1 is limited to 256 HSRP
groups. All other answers are incorrect.
239. C. Hot Standby Router Protocol version 2 (HSRPv2) is being employed. It uses an OUI
of 0000.0c and a well-known identifier of 9f.f, and the last three digits identify the
HSRP group, which has been expanded from two digits in version 1. HSRPv1 has a well-
known identifier of 07.ac. Gateway Load Balancing Protocol (GLBP) and Virtual Router
Redundancy Protocol (VRRP) do not have well-known identifiers.
240. D. Preemption allows for the election process to happen for a newly added HSRP router.
If preemption is not enabled, then the newly added HSRP router will become a standby
router. HSRP does not load-balance per packet; Gateway Load Balancing Protocol (GLBP)
will load-balance per packet. Object tracking effectively watches an upstream interface
and recalculates HSRP if the interface fails. HSRP uses both the priority and highest IP
address to elect an active router.
241. B. Hot Standby Router Protocol (HSRP) allows for only one active router per HSRP
group. However, you can configure multiple VLANs with HSRP groups. You can then
alternate a higher-than-default priority to force an active router per VLAN. This will give
you a rudimentary way of balancing traffic. Configuring version 2 for all HSRP groups
will not achieve load-balancing. Configuring PPPoE on the router interfaces is an incorrect
answer as it will pin a host to a specific interface. You cannot configure all the routers in
an HSRP group as active routers.
242. C. The command
show standby will allow you to verify the state of the current router
for HSRP. The command
show hsrp is incorrect. The command show ip standby is
incorrect. The command
show ip hsrp is incorrect.
243. C. The HSRP group is not set for preemption, which is the default behavior for HSRP.
You need to enable preemption, which will allow a reelection when the priority is changed
or if a new standby router comes online. If preemption is disabled, the active router will
have affinity. The default priority for HSRP is 100. The hold timers will have nothing to
do with the election of the active router unless there is a failure. Router A’s IP address will
not matter if the priority is higher than that of the other routers (default of 100).
Chapter 3: IP Connectivity (Domain 3)
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