📄 模拟考试2.htm
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onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.防火墙技术<BR> <INPUT class=radio name=text1690
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.防病毒技术<BR> <INPUT class=radio name=text1690
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.防拒认技术 <BR></TD></TR>
<TR class=trh1>
<TD align=middle height=212 width=29>41 </TD>
<TD align=left height=212 width=607> 对照 ISO/OSI
参考模型各个层中的网络安全服务，在网络层可以采用__(28)__来处理信息内外网络边界流动和建立透明的安全加密信道©) <BR>答：
<INPUT class=radio name=text1697 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.防窃听技<BR> <INPUT class=radio name=text1697
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.防火墙技术<BR> <INPUT class=radio name=text1697
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.防病毒技术<BR> <INPUT class=radio name=text1697
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.防拒认技术<BR></TD></TR>
<TR class=trh1>
<TD align=middle height=212 width=29>42 </TD>
<TD align=left height=212 width=607> 对照 ISO/OSI
参考模型各个层中的网络安全服务，为了将低层安全服务进行抽象和屏蔽，最有效的一类做法是可以在传输层和应用层之间建立中间件层次实现通用的安全服务功能，通过定义统一的安全服务接口向应用层提供__(30)__安全服务。©)
<BR>答： <INPUT class=radio name=text1701
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.身份认证<BR> <INPUT class=radio name=text1701
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.访问控制 <BR> <INPUT class=radio name=text1701
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.身份认证、访问控制和数据加密<BR> <INPUT class=radio
name=text1701 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.数据加密<BR></TD></TR>
<TR class=trh1>
<TD align=middle height=212 width=29>43 </TD>
<TD align=left height=212 width=607> TCP
是一个面向连接的协议，为了提高效率，又引入了滑动窗口协议，协议规定重传__(33)__的分组©) <BR>答： <INPUT
class=radio name=text1708 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.未被确认及至窗口首端的所有分<BR> <INPUT class=radio
name=text1708 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.未被确认<BR> <INPUT class=radio name=text1708
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.未被确认及至退回N值的所有分组<BR> <INPUT class=radio
name=text1708 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.仅丢失的<BR></TD></TR>
<TR class=trh1>
<TD align=middle height=212 width=29>44 </TD>
<TD align=left height=212 width=607> SNMP
协议管理操作中管理代理主动向管理进程报告事件的操作是__(38)__。©) <BR>答： <INPUT class=radio
name=text1715 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.get-request<BR> <INPUT class=radio
name=text1715 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.get-response<BR> <INPUT class=radio
name=text1715 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.trap<BR> <INPUT class=radio name=text1715
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.set-request<BR></TD></TR>
<TR class=trh1>
<TD align=middle height=212 width=29>45 </TD>
<TD align=left height=212 width=607> N-ISDN
是在__(41)__基础上建立起来的网络©) <BR>答： <INPUT class=radio name=text1721
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.电话网<BR> <INPUT class=radio name=text1721
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.有线电视网<BR> <INPUT class=radio name=text1721
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.公用数据网<BR> <INPUT class=radio name=text1721
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.接入网<BR></TD></TR>
<TR class=trh1>
<TD align=middle height=212 width=29>46 </TD>
<TD align=left height=212 width=607> 当使用 RS232C
连接相关设备时，电缆的长度不应超过__(48)__米。©) <BR>答： <INPUT class=radio
name=text1727 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.3<BR> <INPUT class=radio name=text1727
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.12<BR> <INPUT class=radio name=text1727
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.15<BR> <INPUT class=radio name=text1727
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.50<BR></TD></TR>
<TR class=trh1>
<TD align=middle height=212 width=29>47 </TD>
<TD align=left height=212 width=607> 当用 RS232C
直接连接两台计算机时，采用零调制解调器方式，其连接方式为__(49)__。©) <BR>答： <INPUT class=radio
name=text1956 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio value=A>A.用
25 针插座及电缆连接<BR> <INPUT class=radio name=text1956
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio value=B>B.用
9 针插座及电缆连接<BR> <INPUT class=radio name=text1956
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.信号地对接，一台计算机的发送（接收）数据线与对方的接收（发送）数据线相连<BR>
<INPUT class=radio name=text1956 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.不能采用这种连接方式<BR></TD></TR>
<TR class=trh1>
<TD align=middle height=212 width=29>48 </TD>
<TD align=left height=212 width=607> 当进行 VP 交换时，VPI 和 VCI
的变化情况是__(53)__。©) <BR>答： <INPUT class=radio name=text1960
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.VPI变化，VCI不变<BR> <INPUT class=radio
name=text1960 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.VPI不变，VCI变化<BR> <INPUT class=radio
name=text1960 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.VPI变化，VCI变化<BR> <INPUT class=radio
name=text1960 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.VPI不变，VCI不变<BR></TD></TR>
<TR class=trh1>
<TD align=middle height=212 width=29>49 </TD>
<TD align=left height=212 width=607> 指令 ServerAdmin
的作用是__(58)__©) <BR>答： <INPUT class=radio name=text1965
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.设定该WWW服务器的系统管理员账号<BR> <INPUT class=radio
name=text1965 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.设定系统管理员的电子邮件地址<BR> <INPUT class=radio
name=text1965 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.指明服务器运行时的用户账号，服务器进程拥有该账号的所有权限<BR> <INPUT
class=radio name=text1965 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.指定服务器 WWW 管理界面的 URL，包括虚拟目录、监听端口等信息<BR></TD></TR>
<TR class=trh1>
<TD align=middle height=212 width=29>50 </TD>
<TD align=left height=212 width=607> 设置 index.html 或
default.html 为目录下默认文档的指令是__(59)__©) <BR>答： <INPUT class=radio
name=text1966 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.IndexOptions<BR> <INPUT class=radio
name=text1966 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.DirectoryIndex<BR> <INPUT class=radio
name=text1966 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.DirectoryDefault<BR> <INPUT class=radio
name=text1966 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.Indexlgnore<BR></TD></TR>
<TR class=trh1>
<TD align=middle height=212 width=29>51 </TD>
<TD align=left height=212 width=607>
如果允许以“http://www.xxx.edu.cn/~username”方式访问用户的个人主页，必须通过__(60)__指令设置个人主页文档所在的目录。©)
<BR>答： <INPUT class=radio name=text1967
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.VirtualHost<BR> <INPUT class=radio
name=text1967 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.VirtualDiretory<BR> <INPUT class=radio
name=text1967 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.UserHome<BR> <INPUT class=radio
name=text1967 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.Userdir<BR></TD></TR>
<TR class=trh1>
<TD align=middle height=212 width=29>52 </TD>
<TD align=left height=212 width=607>
图为曼彻斯特编码这种编码适用的网络是___(2)___。 ©) <BR>
<CENTER><IMG border=0 src="模拟考试2.files/20048131658261.bmp">
</CENTER><BR>答： <INPUT class=radio name=text1969
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.广域网<BR> <INPUT class=radio name=text1969
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.城域网<BR> <INPUT class=radio name=text1969
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.局域网<BR> <INPUT class=radio name=text1969
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.任意网<BR></TD></TR>
<TR class=trh1>
<TD align=middle height=212 width=29>53 </TD>
<TD align=left height=212 width=607> 信元是信元交换的单位。为控制差错，在信元中包括
CRC 校验和，其生成公式为⌨️ 快捷键说明
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