单选题A technician is troubleshooting a lack of Internet connectivity affecting their entire office. The technician suspects the issue is with their Internet Service Provider failing to provide service.Which of the following command line tools should the tec

题目

单选题

A technician is troubleshooting a lack of Internet connectivity affecting their entire office. The technician suspects the issue is with their Internet Service Provider failing to provide service.Which of the following command line tools should the technician use to BEST test this theory？（）

tracert

ipconfig

netstat

nslookup

参考答案和解析

正确答案： B

解析：暂无解析

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第1题：

A technician is troubleshooting a network connectivity issue. Given the following abbreviated traceroute output:Which of the following is MOST likely occurring?()

A. Switching loop

B. Broadcast storm

C. IP conflict

D. Routing loop

参考答案：D

第2题：

While troubleshooting a network problem,a technician discovers that the current copy of the Cisco IOS is outdated and needs to be updated.Which of the following commands would the technician issue to replace the Cisco router IOS with the newer version?（）

A. Router#copy tftp flash

B. Router(config)#restore flash

C. Router(config)#repair flash

D. Router#copy flash run

E. Router>copy start flash

F. Router#copy start flash

参考答案：A

第3题：

A customer reports that error messages occasionally appear and quickly disappear. Which of thefollowing is the BEST place for a technician to begin troubleshooting this issue?()

A. Run a System Restore

B. Check Device Manager

C. Check the Event Logs

D. Check the System Information

参考答案：C

第4题：

The network technician is troubleshooting a network issue by implementing a new security device.After installing and configuring the device, which of the following steps should the technician takeNEXT?（）

A、Verity full system functionality
B、Identify the main problem and question the user
C、Document their findings, actions, and outcomes
D、Escalate the issue to upper management

正确答案:A

第5题：

A、Router#copy tftp flash
B、Router(config)#restore flash
C、Router(config)#repair flash
D、Router#copy flash run
E、Router>copy start flash
F、Router#copy start flash

正确答案:A

第6题：

A VPN connection is not working correctly and the technician is unable to ping the VPN server.Which of the following actions should the technician do FIRST?()

A. Call their local ISP

B. Verify the IP information of the server

C. Check their local Internet connection

D. Verify the hostname of the server

参考答案：C

第7题：

A TestKing.com technician is troubleshooting connectivity problems between two routers that are directly connected through the serial line. The technician notices that the serial line is up but cannot see any neighbors displayed in the output of the show cdp neighbors command. In which OSI layer is the problem most likely occurring?（）

A、Physical
B、Data link
C、Network layer
D、Transport layer
E、Application layer

正确答案:B

第8题：

A. Verity full system functionality

B. Identify the main problem and question the user

C. Document their findings, actions, and outcomes

D. Escalate the issue to upper management

参考答案：A

第9题：

Rate your level of proficiency with implementing， managing， and troubleshooting network protocols and services， including TCP/IP protocol， dial-up networking， Internet Information Services （IIS）， remote desktop， and Internet connection firewalls.（）

A、Very High
B、High
C、Moderate
D、Low
E、Very Low

正确答案:A

第10题：

Which of the following is unsafe for a technician to use when troubleshooting or repairing a CRT monitor?（）

A、Anti-static pad
B、Anti-static wrist strap
C、Rubber gloves
D、Multimeter

正确答案:B

A technician is troubleshooting a lack of Internet connectiv

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