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Cisco CCNA 640-802试题(56-60)

2007-12-24 11:17 佚名 51CTO.com 字号:T | T
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本文内容为Cisco CCNA认证考试640-802(56-60)试题及答案。

AD:

56. Refer to the exhibit. What is the effect of the configuration that is shown?

A. It configures SSH globally for all logins.
B. It tells the router or switch to try to establish an SSh connection first and if that fails to use Telnet.
C. It configures the virtual terminal lines with the password 030752180500.
D. It configures a Cisco network device to use the SSH protocol on incoming communications via the virtual
terminal ports.
E. It allows seven failed login attempts before the VTY lines are temporarily shutdown.

Answer: D

57. Refer to the exhibit. When PC1 sends an ARP request for the MAC address of PC2, network performance slows dramatically, and the switches detect an unusually high number of broadcast frames. What is the most likely  cause of this?

A. The portfast feature is not enabled on all switch ports.
B. The PCs are in two different VLANs.
C. Spanning Tree Protocol is not running on the switches.
D. PC2 is down and is not able to respond to the request.
E. The VTP versions running on the two switches do not match.
Answer: C  TestInside    640-802

58. An administrator issues the command ping 127.0.0.1 from the command line prompt on a PC. If a reply is  received, what does this confirm?

A. The PC has connectivity with a local host.
B. The PC has connectivity with a Layer 3 device.
C. The PC has a default gateway correctly configured.
D. The PC has connectivity up to Layer 5 of the OSI model.
E. The PC has the TCP/IP protocol stack correctly installed.
Answer: E


59. Refer to the exhibit. The network administrator requires easy configuration options and minimal routing protocol traffic. What two options provide adequate routing table information for traffic that passes between the two routers and satisfy the requests of the network administrator? (Choose two.)

A. a dynamic routing protocol on InternetRouter to advertise all routes to CentralRouter.
B. a dynamic routing protocol on InternetRouter to advertise summarized routes to CentralRouter.
C. a static route on InternetRouter to direct traffic that is destined for 172.16.0.0/16 to CentralRouter.
D. a dynamic routing protocol on CentralRouter to advertise all routes to InternetRouter.
E. a dynamic routing protocol on CentralRouter to advertise summarized routes to InternetRouter.
F. a static, default route on CentralRouter that directs traffic to InternetRouter.

Answer: CF

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