单项选择题
A technician needs to assign a default subnet mask for a class B network to a network device that was just installed. Which of the following would the technician use?（）
A. 224.0.0.1
B. 255.0.0.0
C. 255.255.0.0
D. 255.255.255.0
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相关考题
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Which of the following describes the 25 or 9 pin connector with male pins on the back of a laptop computer?（）
A. Parallel port
B. Serial port
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单项选择题
A technician notices that there is a second partition on the primary hard drive. This partitionis notassigned a drive letter and is not accessible from Windows. Which of the following is the MOST likely explanation for this extra partition?（）
A. Space reserved by the drive manufacturer for firmware.
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多项选择题
Which of the following commands verifies connectivity between two hosts?（）
A. chkntfs
B. dxdiag
C. tracert
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E. ping
