Which of the following is an advantage of upgrading to ……

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

单项选择题A user reports that their computer suddenly will not boot. When the technician arrives, they discover that the user is very worried they will not be able to complete a research paper theyve been working on which is due by the end of the day. Which of the following is an appropriate response to the users concerns? （）

A. A Trojan may have infected the OS or worked its way into the MBR. What did you download recently that caused the problem?
B. I understand your concern, and will try to have your computer working again as quickly as possible so that you can finish your report.
C. If the paper was so important to you, you should have created a backup copy so you could finish it on another computer.
D. I do not understand why you are upset. I am sure your professor will understand and you will be able to turn in the paper tomorrow.

单项选择题Which of the following printers would be the BEST choice for printing on multi-part forms?（）

A. Impact printer
B. Thermal printer
C. Inkjet printer
D. Laser printer

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
C. IEEE 1394 port
D. USB port