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Question 1

49% answer correctly

Which of the following about a root bridge in an STP domain is true?

	It has the lowest bridge ID in the STP domain.
	It has the highest root ID in the STP domain.
	It has the highest priority value.
	It contains non-designated ports.
	It contains root 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 interface GigabitEthernet 0/0/0/1
	RP/0/RSP0/CPU0:PE1# show ipv4 interfaces brief
	RP/0/RSP0/CPU0:PE1# show controllers
	RP/0/RSP0/CPU0:PE1(admin)# show platform
	RP/0/RSP0/CPU0:PE1(admin)# show hw-module fpd location all
	RP/0/RSP0/CPU0:PE1(config)# show bundle

Question 3

56% answer correctly

Using VLSM, how many /30 subnets can be derived from a single /27 Class C subnet?