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Appendix A
Practice Exam
33.
B. The EIGRP process number is always the number assigned to an
autonomous system.
34.
B. Static routes have a default administrative distance of 1.
35.
D. The commands
router bgp 100
and neighbor 10.1.1.1
remote-as
200 configure BGP with an external BGP neighbor.
36.
A, B, C. Slow convergence, non-optimal routes, and routing loops
are all problems that can occur by using route redistribution.
37.
D. Passive interfaces are used for such interfaces as BRI where you do
not want to have routing updates sent out the interface. If routing
updates were sent out of a BRI interface, then the interface would
never disconnect.
38.
B. The
1
refers to the access list against which the match command is
testing traffic.
39.
D. If you write out 255.255.255.224 in binary, you will find that the
first 27 bits are ones, and the remaining five bits are zeros. Therefore,
we say that it is a /27.
40.
A, B, C. The smooth round-trip timer (SRTT), the retransmission
timer (RTO), and the hold timer are all used by the neighbor table to
track its neighboring routers. The Time To Live and Stop timers are
not used by the EIGRP neighbor table.
41.
C. Border Gateway Protocol can load balance connections with as
many as six different ISPs.
42.
D. Port 179 is used by BGP to establish a session with another BGP
peer. Ports 20 and 21 are used by FTP, and port 23 is used by Telnet.
43.
D. The
bgp dampening
command is used by BGP to set a hold time
before a route can be re-advertised after route flapping.
44.
D. The Weight attribute is a Cisco proprietary attribute used as a
metric only in Cisco implementations of BGPv4.
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