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- ars，TCP／IP has also
- begun to be used by telephone
- companies to provi
- de faster,cheaper telephone (74) . (74) A．transmitting
- B．transmited
- C．transfers
- D．transmissions
- A．o
- bje
- ct-oriente
- d
- B．object-based
- C．face to object
- D．face to target
- ake&n
- bsp;(72) regularly in data pro
- cessing. (72) A．e
- dit
- B．insert
- C．format
- D．Back up
- ast few years，it has
- been realized that maintenan
- ce of programs is more expensive than
- development,so reading of programs by humans is as important as (73) them. (73) A．editing
- B．writed
- C．written
- D．writing
- as full rights and permissions to all resources on a network. (71) A．user &n
- bsp; B．guest
- C．a
- dministrator
- D．owner
- As administrators seek to block dangerous email attachments through the recognition of well-known (69) , virus writers use other extensions to circumvent such protection. Executable (.exe) files are renamed to .bat and .cmd plus a who
- B．packet
- C．datagram
- D．message (67) A．virtual
- B．virus
- C．worms
- D．bacteria (68) A．memory
- B．caches
- C．ports
- D．registers (69) A．names
- A．包过滤、入侵检测和数据加密 &n
- bsp; B．包过滤、入侵检测和应用代理
- C．IP过滤、线路过滤和入侵检测
- D．IP过滤、线路过滤和应用代理
- A．物理故障 &n
- bsp; B．配置故障
- C．程序故障
- D．系统故障
- A．维护网络设备，保证网络性能 &n
- bsp; B．监视网络运行过程中的主要性能指标，报告网络性能变化趋势，提供决策依据
- C．在脱机条件下分析故障，找出可能的问题
- D．限制非法用户使用网络资源
- A．信息过滤 &n
- bsp; B．地址转换
- C．域名解析
- D．信息缓存
