Answers to Practice Exam
677
13.
A, B. Because POP3 uses TCP as its transport protocol, it is not a
connectionless packet. No TCP options were specified in this packet.
14.
A, B, D. An NMS may have the ability to maintain inventory informa-
tion, but it is not one of the five necessary attributes.
15.
B. Debug only sees packets that are process switched. Therefore, all
other forms of switching must be disabled on the interface.
16.
C. There are numerous reasons why the receiver can't transfer the pack-
ets fast enough; regardless of the reason, the condition causes an overrun.
17.
A. If the transmitter attempts to transfer packets faster than the hard-
ware buffer can send them to the transmitter, an underrun occurs.
18.
D. These queues hold copies of packets before and after the RP has
processed them.
19.
A, C, D, E. MAC addresses cannot be used since the Layer 2 headers
change at every hop. The switching type is not used.
20.
B, C. The packet is a type 3, as indicated by the number next to the
"Destination Unreachable."
21.
A, B. The application sources the connection via 1038, but the destina-
tion port is the significant port--the host will listen for FTP on port 21.
22.
A, B. Either of these items can cause the interface not to function.
23.
A, B, C, D. All of these statements are true. There are one Ethernet
interface and two Serial interfaces.
24.
A, D. If the success rate was only 30 percent of the packets getting
through, then 70 percent of the packets were dropped.
25.
C. The output seen is from the show ip eigrp topology.
26.
C. This output contains the IP configuration of the interface.
27.
D. This command lists all IP protocols configured on the router.
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