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Question 1

63% answer correctly

What does a transparent LAN switch use to build its CAM table?

	STP messages exchanged with neighbor bridges
	BPDU messages exchanged with neighbor bridges
	Dynamic routing protocol updates from neighbor bridges
	Analysis of the source MAC address of incoming frames on the bridge ports

Question 2

70% answer correctly

Which Cisco IOS XR command presents a list of all interfaces, their Layer 3 address (if configured), and the status of the interface and protocol?

	RP/0/RSP0/CPU0:PE1# show ipv4 interfaces brief
	RP/0/RSP0/CPU0:PE1(config)# show bundle
	RP/0/RSP0/CPU0:PE1(admin)# show hw-module fpd location all
	RP/0/RSP0/CPU0:PE1(admin)# show platform
	RP/0/RSP0/CPU0:PE1# show interface GigabitEthernet 0/0/0/1
	RP/0/RSP0/CPU0:PE1# show controllers

Question 3

42% answer correctly

Given the CIDR address range of 200.165.160.0 to 200.165.191.255, what is the CIDR block?