单项选择题

A workstation is added to a newly created subnet using 192.168.100.0/24. A DHCP server is available on subnet 192.168.101.0/24. The user is unable to lease an address from the DHCP server. Which of the following would BEST resolve the problem？（）

A.Assign the workstation a static IP address.
B.Add a second DHCP server to the 192.168.101.0/24 subnet.
C.Add a DHCP relay to the 192.168.100.0/24 subnet.
D.Add a DHCP server to the 192.168.100.0/24 subnet.

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多项选择题

Which of the following is a bus mastering method?（）

A. A device transfers data directly to the memory.
B. A device handles mediation between the northbridge and the processor.
C. A device connects to another device without involving the processor.
D. A device transfers data to the processor and then on to the memory.
E. A device handles mediation between the southbridge and the processor

单项选择题

Which of the following protocols would be used to test if one host is reachable by another host， by sending echo requests and waiting for echo replies？（）

A.SNMP
B.ICMP
C.TCP
D.UDP

单项选择题

A small push button typically found on the inside of a server case is MOST likely used for which of the following purposes？（）

A. UID switch
B. Power switch
C. Cooling fan switch
D. Chassis intrusion switch