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Answers to Assessment Test

25.

B. Hubs regenerate electrical signals, which are specified at the Phys-
ical layer. See Chapter 1 for more information.

26.

B, C. You can configure VLAN memberships on a port either stati-
cally or dynamically. See Chapter 6 for more information.

27.

B. The

command

show

controllers s 0 tells you what type of serial

connection you have. If it is a DCE, you need to provide the clock rate.
See Chapter 4 for more information.

28.

C. The old command config mem was used to copy the configuration
stored in NVRAM to RAM and append the file in DRAM, not replace
it. The new command is copy start run. See Chapter 7 for more
information.

29.

C. The primary reason the OSI model was created was so that differ-
ent networks could interoperate. See Chapter 1 for more information.

30.

C. The Transport layer creates virtual circuits between hosts before
transmitting any data. See Chapter 1 for more information.

31.

C. User Datagram Protocol is a connection network service at the
Transport layer, and DHCP uses this connectionless service. See
Chapter 3 for more information.

32.

D. The command used to copy a configuration from a router to a
TFTP host is copy flash tftp. See Chapter 7 for more information.

33.

E. The clock rate command is two words, and the speed of the line is
in bps. See Chapter 4 for more information.

34.

C. The

show

ip interface command will show you if any outbound

or inbound interfaces have an access-lists set. See Chapter 9 for more
information.

35.

C. The

command

line

vty 0 4 places you in a prompt that will allow

you to set or change your Telnet password. See Chapter 4 for more
information.

36.

B. The command

enable

secret todd sets the enable secret pass-

word to todd. See Chapter 4 for more information.

37.

B. If a device knows the IP address of where it wants to send a packet,
but doesn't know the hardware address, it will send an ARP broadcast
looking for the hardware or, in this case, Ethernet address. See Chapter 3
for more information.

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