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单选题
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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单选题Refer to the exhibt.Host A has tested connectivity to a remote network.What is the default gateway for host A?（）A
172.16.182.1B
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10.16.176.1D
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PhysicalB
Data linkC
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考题
单选题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
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802.1 1gB
802.1XC
802.11nD
802.11b
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Allow the user to demonstrate expertise.B
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Ask the user to watch as the technician diagnoses and corrects the problem.D
Document each of the steps to replicate at a later time.
考题
单选题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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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.
考题
单选题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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