●关于选用了源路径选择桥的局域网，说法 (31) 是正确的。
(31)
- A．采用交叉支撑树算法 &n
- bsp; B．源路径选择桥对站点是透明的
- C．当一站点向不同的局域网发送一帧时，需将帧的目的地址的高位设置为1,且在帧格式的头内包括该帧传送的确切途径
- D．源路径选择桥只能用于分支拓扑结构的互连网络
-
●In recent ye
- 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
-
●C++is used with proper (75) design techniques.
(75)
- A．o
- bje
- ct-oriente
- d
- B．object-based
- C．face to object
- D．face to target
-
●Note：M
- ake&n
- bsp;(72) regularly in data pro
- cessing. (72) A．e
- dit
- B．insert
- C．format
- D．Back up
-
●During the l
- 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
-
●Network (71) h
- as full rights and permissions to all resources on a network. (71) A．user &n
- bsp; B．guest
- C．a
- dministrator
- D．owner
-
●Melissa and Love Letter made use of the trust that exists between friends or colleagues.Imagine receiving an (66) from a friend who asks you to open it.This is what happens with Melissa and several other similar email (67) .Upon running, such worms usually proceed to send themselves out to email addresses from the victim's address book,previous emails, web pages (68) .
- 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
-
●防火墙技术可以分为 (65) 等3大类型。
(65)
- 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
-
●网络常见的故障不含 (64) 。
(64)
- A．物理故障 &n
- bsp; B．配置故障
- C．程序故障
- D．系统故障
-
●网络性能管理是指 (63) 。
(63)
- 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
-
●下列各项不属于代理服务器功能的有 (62) 。
(62)
- A．信息过滤 &n
- bsp; B．地址转换
- C．域名解析
- D．信息缓存
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