Answers to Review Questions
399
11.
C. The
in
parameter on a distribute-list command specifies
routes to be added to a router's routing table. The out parameter
specifies routes to be advertised from a router.
12.
D. The Null0 interface is a virtual interface, which is sometimes
referred to as a bit bucket. Packets sent to the Null0 interface are dis-
carded. Since a static route requires less processing than an access list,
a route to Null0 is sometimes preferable to an access list denying a par-
ticular host or network.
13.
C. The
show ip protocols
command will display such information
as redistribution parameters.
14.
B. The
redistribute static
command redistributes routes that
have been manually configured.
15.
A. The
redistribute connected
command redistributes routes of
networks that are connected directly to the local router. These routes
may or may not be a part of a routing process.
16.
A, B, C, and D. Route maps, which use a combination of match and
set
clauses, can be used for all of the listed applications.
17.
A. The
20
is the sequence number of the route map. The sequence
numbers of the route map determine in what order the match and set
clauses will be evaluated.
18.
B. If IGRP and EIGRP processes are both running on the same
router, and they both have the same process ID, then their routes will
automatically be redistributed into each other.
19.
D. The
debug ip rip
command can be used to view the contents of
RIP updates as they occur.
20.
B. The
out
parameter of the distribute-list command deals with
advertising routes, while the in parameter deals with adding routes to
the local routing table.
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