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Steve McQuerry. Interconnecting Cisco Network Devices. (Cisco Press: 2000) pages 45-48.
Q. 23
Which of the following are unique characteristics of half-duplex Ethernet as compared to full-duplex
Ethernet? (Choose two.)
A. Shared collision domain.
B. Private collision domain
C. Higher effective throughput
D. Lower effective throughput
E. Private broadcast domain
Answer: A, D
Explanation: Half-duplex Ethernet have a lower effective throughput due to shared collision domain the a full-
duplex Ethernet.
Incorrect Answers:
B is incorrect; the collision domain is shared not private.
C is incorrect; half-duplex as a lower effective throughput.
E is incorrect; it is a shared collision domain not a private broadcast domain.
Steve McQuerry. Interconnecting Cisco Network Devices. (Cisco Press: 2000) pages 180-182.
Q. 24
From the DOS command prompt, you are able to ping a router but are unable to telnet it.
What is the most likely cause of the problem?
A. The PC has a bad network interface card.
B. The IP address of the router is on a different subnet.
C. No password has been set on the router vty lines.
D. The default gateway is not set on the PC.
E. The IP address of the workstation is incorrect.
Answer: C
Explanation: In order to telnet to a router a password must be set on the router’s vty line.
Incorrect Answers:
A is incorrect; you could not ping if there was a bad NIC.
B is incorrect; telnet is design to allow remote connections.