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Answers to Assessment Test

lxi

38.

D. The

copy

tftp flash command places a new file in flash mem-

ory, which is the default location for the Cisco IOS in Cisco routers.
See Chapter 7 for more information.

39.

A. The command to copy running-config, which is the file in
DRAM, to NVRAM is copy running-config startup-config. See
Chapter 7 for more information.

40.

C. If an interface is administratively shut down, it just means the
administrator needs to perform a no shutdown on the interface. See
Chapter 4 for more information.

41.

B. A reliable session, typically meaning the Transport layer, uses
acknowledgments to make sure all data was received properly.

42.

D. Layer-2 switching creates individual collision domains. See
Chapter 2 for more information.

43.

B. Static routes have an administrative distance of one by default. See
Chapter 5 for more information.

44.

C. Before a maximum hop count was used in distance-vector networks,
the only way to solve network loops was to reboot all the routers in the
network. See Chapter 5 for more information.

45.

C. ICMP is the protocol at the Network layer that is used to send
messages back to an originating router. See Chapter 3 for more
information.

46.

A. Fast Ethernet, using twisted-pair, can run up to 100 meters. See
Chapter 1 for more information.

47.

C. PDUs at the Network layer are called packets. See Chapter 1 for
more information.

48.

A. Static routes do not converge and must be updated by hand. See
Chapter 5 for more information.

49.

D. The

copy

tftp running-config command copies the running-

config

file to DRAM. See Chapter 7 for more information.

50.

C. The keystrokes Cntrl

+Shift+6, then X, will return a Telnet session

back to the originating console. See Chapter 7 for more information.

51.

C. IP extended access lists use the numbers 100199. See Chapter 9
for more information.

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