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1.Which three statements are true about the operation of a full-duplex Ethernet network? (Choose three.)
A:There are no collisions in full-duplex mode.
B:A dedicated switch port is required for each full-duplex node.
C:Ethernet hub ports are preconfigured for full-duplex mode.
D:In a full-duplex environment, the host network card must check for the availability of the network media before transmitting.
E:The host network card and the switch port must be capable of operating in full-duplex mode.
Correct Answers:?? A, B, E
2.What is the difference between the Cisco router IOS commands show cdp neighbor detail and show cdp entry?
A: The show cdp neighbor detail command shows all neighbor information, while show cdp entry displays only one line of output for each neighbor.
B: The show cdp entry command shows neighbor information for specific neighbors only, while show cdp neighbor detail lists each neighbor with detailed output on each.
C: The show cdp entry command shows neighbor information for all neighbors with one line of output for each, while show cdp neighbor detail lists each neighbor with detailed output on each.
D: The show cdp neighbor detail command shows neighbor information for a single neighbor only, while show cdp entry displays detailed output on each neighbor known.
Correct Answers:?? B
3.If a host on a network has the address 172.16.45.14/30, what is the address of the subnetwork to which this host belongs?
A: 172.16.45.0
B: 172.16.45.4
C: 172.16.45.8
D: 172.16.45.12
E: 172.16.45.16
Correct Answers:?? D
4.If NVRAM lacks boot system commands, where does the router look for the Cisco IOS by default?
A: ROM
B: RAM
C: Flash
D: bootstrap
E: startup-config
Correct Answers:?? C
10.Which IP address is a private address?
A: 12.0.0.1
B: 168.172.19.39
C: 172.20.14.36
D: 172.33.194.30
E: 192.169.42.34
Correct Answers:?? C
