Which type of protocol requires an application to request retransmission of missing or
corrupt packets?
A. Host-to-host
B. Connection-oriented
C. Client/server
D. Connectionless
E. Quality-of-service oriented
Answer: B
Explanation: A connection-orientated protocol ensures that packets are in order and manages
timeout counters. The connection-orientated protocol also requests retransmission of missing
packets
应该是BorD？
When you troubleshoot PPP CHAP authentication for ISDN BRI, check to make sure that
the password and router name configured on the local router is _______ to the
password and TE name on the remote router.
Note: Use a single word answer.
Answer: equal
Explanation: When you troubleshoot CHAP authentication you must make sure that: the
passwords configured on both the local and remote TEs are identical and the router
name of the remote TE that you configure on the local network is identical to the remote
TE name.
答案是equal or identical？
You want to observe the spanning-tree port state such as disabled, blocking, listening,
learning, forwarding, and so forth. Which Catalyst 5000 command should you use?
A. Show port
B. Show span
C. Show spantree
D. Show config spanning
E. Show spanning-tree port
Answer: C
B？对不？
In the output of the Cisco 108 IOS show IPX traffic command, what does an
incrementing count in the format errors counter usually mean?
A. An unknown server type requested by a host
B. A hardware problem on the network interface card
C. An encapsulation type mismatched on one or more hosts
D. A corrupted header in the packets that encountered a bad hop count
E. A request from hosts for a packet encapsulation that the router cannot support
Answer: C
Explanation: The format error field shows the number of bad packets discarded. Includes IPX
packets received in an encapsulation for which this interface is not configured.
到底是Cor E啊，搞糊涂了。
The CSE on an escalation of a trouble ticket asks for output from show memory and
show process. What is the most likely situation (or situations) involved in this trouble
ticket?
A. Troubleshooting a crash or hung systems
B. Isolating partial loss of system function
C. Diagnosing lost data or performance problems
D. Either B or C above
E. Either A or C above
Answer: C
Explanation: A CSE will ask for output from show interface and show protocol in situations
involving diagnosing lost data or performance problems, or isolating partial loss of system
function.
这题应该是C吧，show interface ,show protocol才因该是D
QUESTION NUMBER: 145 (640-606R106290)
Which Catalyst 5000 command is comparable to the router's Cisco IOS software
command, show span?
Answer: show span
Explanation: You use the show span command to display information about the
Catalyst 5000 series port analyzer function setting.
应该是show spanning吧
