background image
Scenario 9-3 697
10
Press the up-arrow key, or press Ctrl+p to retrieve the last command. Then press the
Backspace key until the word "route" is erased. Then type arp, which leaves show ip arp
on the command line. Press Enter.
11
The answers are as follows:
-- Beginning of command line: Ctrl+a
-- End of command line: Ctrl+e
-- Beginning of previous word: Esc+b
-- Beginning of next word: Esc+f
-- Backward one character: Ctrl+b
-- Forward one character: Ctrl+f
12
A file is obtained from Cisco via disk or FTP download over the Internet; this file is the
IOS. The file is placed into the default directory on some TFTP server accessible to the
router. The copy tftp flash command is issued on the router, and the user answers
questions to tell the router the name and location of the new IOS. Flash memory is updated
as a result of this process. The new IOS is not used until the router is reloaded.
13
TCP stands for Transmission Control Protocol; UDP stands for User Datagram Protocol.
TCP provides error recovery.
14
ICMP stands for Internet Control Message Protocol.
15
The Inverse ARP process is not used when the subinterface is a point-to-point
subinterface; therefore, R2 can learn of R1's IP and IPX addresses only with CDP, or by
looking at the source addresses of the IPX RIP and IP IGRP routing updates.
16
DLCI stands for data link connection identifier. Lengths between 10 and 14 bits are
defined, with a 10-bit number being the most typically implemented size.
17
No other configuration is necessary; this question is a trick question. This is the kind of
misdirection that you might expect to see on some of the exam questions. Read the
questions slowly, and read them twice.
18
The show frame-relay pvc command will list the PVCs. When multipoint subinterfaces
are used, or when no subinterfaces are used for Frame Relay configuration, then the show
frame-relay map command will list the IP and IPX addresses. The show ip route and
show ipx route commands, or the show cdp neighbor detail command, can be used to
see the addresses in either case.
19
The show frame-relay pvc command displays the status.
20
ISDN stands for Integrated Services Digital Network. BRI stands for Basic Rate Interface.
PRI stands for Primary Rate Interface.
ch09.fm Page 697 Monday, March 20, 2000 5:23 PM