多项选择题

Which of the following hardware is hot pluggable?（）

A. eSATA
B. Express Card/54
C. PS/2 peripherals
D. MIDI devices
E. NIC
F. USB

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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

单项选择题

A technician notices that there is a second partition on the primary hard drive. This partition is not assigned 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.
B. Space set aside by Windows for use by the virtual memory swap file.
C. A potentially dangerous virus has been downloaded onto the system.
D. A recovery partition put there by the manufacturer.

多项选择题

Which of the following commands verifies connectivity between two hosts?（）

A.chkntfs
B.dxdiag
C.tracert
D.ipconfig
E.ping