单选题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 sh

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单选题

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?（）

Physical

Data link

Network layer

Transport layer

Application layer

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第1题

For a technician to test network connectivity to a remote host on a Unix Server which of the following commands should they run？（）A、 IPCONFIGB、 PINGC、 ARPD、 IFCONFIG

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第2题

An administrator is troubleshooting wireless connectivity issues at a client’s office and discoversthat the machine loses connectivity when the wireless phone is being used. Which of the following WAPS should be installed to help resolve the issue?（）A、802.1 1gB、802.1XC、802.11nD、802.11b

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第3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 functionalityB、Identify the main problem and question the userC、Document their findings, actions, and outcomesD、Escalate the issue to upper management

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第4题

A technician is troubleshooting a host connectivity problem. The host is unable to ping a server connected to Switch_A. Based on the results of the testing, what could be the problem（）。A、A remote physical layer problem exists.B、The host NIC is not functioning.C、TCP/IP has not been correctly installed on the host.D、A local physical layer problem exists.

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第5题

While troubleshooting a network connectivity problem, a technician observes steady link lights on both the workstation NIC and the switch port to which the workstation is connected. However, when the ping command is issued from the workstation, the output message "Request timed out." is displayed. At which layer of the OSI model does the problem most likely exist（）。A、the session layerB、the protocol layerC、the data link layerD、the access layerE、the network layerF、the application layer

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第6题

Which of the following is unsafe for a technician to use when troubleshooting or repairing a CRT monitor?（）A、Anti-static padB、Anti-static wrist strapC、Rubber glovesD、Multimeter

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第7题

Bob, a technician, is troubleshooting a PC that intermittently does not power on. Which of the following tools would be the BEST choice to use to verify a possible cause? （）A、Cable testerB、Ohm meterC、Field strength meterD、PSU tester

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A TestKing.com technician is troubleshooting connectivity pr

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