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單項(xiàng)選擇題

A client is having trouble connecting to the Internet. The client is using a static IP address and is able to connect to other devices on the network via IP address only. Which of the following is MOST likely the problem?（）

A.IMAP
B.DHCP
C.DNS
D.NAT

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單項(xiàng)選擇題

A computer that has dynamic IP addressing is not receiving an IP address. Which of the following is MOST likely the problem?（）

A.SNMP
B.DHCP
C.DNS
D.NAT

單項(xiàng)選擇題

Which of the following should be used to check a serial port for functionality?（）

A. Loopback plug
B. Toner probe
C. Multimeter
D. Cable tester

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