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- al computers share&n
- bsp;(75) su
- ch as file systems，printers，an
- d tape drives. (75) A．CPU
- B．memory
- C．resources
- D．information
- a 600M-
- byte musi
- c C
- D can be (70) to 50M bytes or less.It can be streamed(downloaded in chunks)so that you can begin listening to the opening bars while the (71) of the file arrives in the background．And，most important，MP3 music files retain good li
- B．compressed
- C．press
- D．compress (71) A．past
- B．other
- C．rest
- D．host (72) A．voice
- are many page replacement algorithms in the page management．Most frequently used algorithm is&n
- bsp;(69) ． (69) A．FIFO
- B．LRU
- C．OPT
- D．PPT
- atements a
- bout
- connecting to the Internet is true? (68) . (68) A．The Internet can only be use
- d to link computers with same operating system
- B．The Internet can be used to connect computers with different ISP
- C．You must have a telephone line to connect to the Internet
- D．You must have a modem to connect to the Internet
- ANs can
- be
- connecte
- d by using bridges，which operate in the (67) . (67) A．data-link layer
- B．Physical layer
- C．network layer
- D．transport layer
- ad factor a of the hash ta
- ble is approximately (66) . (66) A．0．54
- B．0．35
- C．0．28
- D．0．71
- A．保证因特网上传送的数据信息不被第三方监视和窃取 &n
- bsp; B．保证因特网上传送的数据信息不被篡改
- C．保证电子商务交易各方的真实身份
- D．保证发送方不能抵赖曾经发送过某数据信息
- A．安全性 &n
- bsp; B．完备性
- C．可用性
- D．保密性
- A．物理层 &n
- bsp; B．网络层
- C．数据链路层
- D．传输层
- A．141．0．0．0 &n
- bsp; B．3．3．3．3
- C．197．234．111．123
- D．23．34．45．56
