?? 模擬考試28.htm
字號:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<!-- saved from url=(0049)http://edu.lnitec.com/Neo5/kaoshi.asp?paperno=637 -->
<HTML><HEAD><TITLE>開始考試</TITLE>
<SCRIPT language=javascript>
<!-- begin
function click() {
if (event.button==2) {
//alert('考試期間，請不要使用右鍵！')
}
}
document.onmousedown=click
end -->
</SCRIPT>
<SCRIPT language=javascript>
function oncontextmenu() {
self.event.returnValue=false;
}
document.oncontextmenu=oncontextmenu;
end -->
</SCRIPT>
<SCRIPT language=javascript>
function onselectstart() {
return false;
}
document.onselectstart=onselectstart;
end -->
</SCRIPT>
<META content=zh-cn http-equiv=Content-Language>
<META content="MSHTML 5.00.3700.6699" name=GENERATOR>
<META content=FrontPage.Editor.Document name=ProgId>
<META content="text/html; charset=gb2312" http-equiv=Content-Type>
<SCRIPT language=javascript>
<!--
float_init = 1;
function DHTML_Init(Object) {
if (navigator.userAgent.match(/Mozilla\/5\../) && float_init) {
SetObjectOffsetTop(Object, undefined);
}
}
function All (ID) {
if (document.all) { return document.all[ID]; }
else if (document.documentElement){
return document.getElementById (ID);
}
else if (document.layers) { return document.layers[ID]; }
}
function GetWindowOffsetTop() {
if (window.innerHeight) { return window.pageYOffset; }
else if (document.body) { return document.body.scrollTop; }
}
function GetWindowHeight() {
if (window.innerHeight) { return window.innerHeight; }
else if (document.body) { return document.body.clientHeight; }}
function GetObjectHeight(Object) {
DHTML_Init(Object);
if (document.all || document.documentElement) {
Clip = Object.style.clip;
if (! Clip) { return Object.offsetHeight; }
else { return GetClipElement (Clip, 'Bottom'); }}
else if (document.layers) { return Object.clip.height; }}
function GetClipElement (Clip, Element) {
Clip = Clip.substr(Clip.indexOf('(') + 1);
Clip = Clip.substr(0, Clip.length - 1);
Clippers = Clip.split (" ");
for (i = 0; i < Clippers.length; i++) {
if (Clippers[i] != 'auto') {
Clippers[i] = Clippers[i].replace (/D/g, ""); }
}
ClipTop = Number(Clippers[0]);
ClipRight = Number(Clippers[1]);
ClipBottom = Number(Clippers[2]);
ClipLeft = Number(Clippers[3]);
if (Element == 'Top') { return ClipTop; }
else if (Element == 'Right') { return ClipRight; }
else if (Element == 'Bottom') { return ClipBottom; }
else if (Element == 'Left') { return ClipLeft; }
else { return undefined; }}
function GetObjectOffsetTop(Object) {
DHTML_Init(Object);
if (Object.offsetTop) { return Object.offsetTop; }
else if (document.layers) { return Object.top; }
}
function SetObjectOffsetTop(Object, Offset) {
if (Object.style) { Object.style.top = Offset; }
else if (Object.top) { Object.top = Offset; }}
CenterMenu = 1;
MenuBorder = 100;
TimeCheck = 250;
TimeUpdate = 15;
DivUpdate = 15;
Minimum = 50;
AddHeight = -4;
function ScrollMenu() {
Menu = All('persistMenu');
WinTop = GetWindowOffsetTop();
WinHeight = GetWindowHeight() + AddHeight;
MenuTop = GetObjectOffsetTop(Menu);
MenuHeight = GetObjectHeight (Menu);
MenuNew = (CenterMenu) ? Math.round (WinTop + (WinHeight - MenuHeight) / 1) : WinTop + MenuBorder;
if (MenuNew < Minimum)
{ MenuNew = Minimum; }
if (MenuTop != MenuNew) {
if ( (MenuTop + MenuHeight) < WinTop || MenuTop > (WinTop + WinHeight) ) {
SetObjectOffsetTop (Menu, (MenuTop < MenuNew) ? (WinTop - MenuHeight) : (WinTop + WinHeight));
}
else {
Add = (MenuTop < MenuNew) ? 1 : -1;
SetObjectOffsetTop (Menu, MenuTop + Math.round((MenuNew - MenuTop) / DivUpdate) + Add);
}
}
window.setTimeout('ScrollMenu()', (GetObjectOffsetTop(Menu) == MenuNew) ? TimeCheck : TimeUpdate);
}
function MM_findObj(n, d) { //v4.01
var p,i,x; if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
if(!x && d.getElementById) x=d.getElementById(n); return x;
}
function MM_showHideLayers() { //v3.0
var i,p,v,obj,args=MM_showHideLayers.arguments;
for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v='hide')?'hidden':v; }
obj.visibility=v; }
}
function switchSysBar1(){
if (switchPoint1.innerText=="計時器:"){
switchPoint1.innerText="計時器"
document.all("AutoNumber2").style.display="none"
}else{
switchPoint1.innerText="計時器:"
document.all("AutoNumber2").style.display=""
}}
//-->
</SCRIPT>
<LINK href="模擬考試28.files/css.css" rel=stylesheet type=text/css>
<FORM method=post name=testform></HEAD>
<BODY>
<H3 align=center><FONT color=#0000ff>您現在正在參加網絡工程師考試</FONT></H3>
<CENTER>考試時間150分鐘 0:21:26 到 2:51:26 出卷人：最高管理員</CENTER>
<TABLE border=1 borderColor=#799ae1 cellSpacing=1 height=138
style="BORDER-COLLAPSE: collapse" width="100%">
<TBODY>
<TR class=trh>
<TD align=middle bgColor=#799ae1 height=19 width=30><FONT
color=#ffffff><B>序號</B></FONT></TD>
<TD align=middle bgColor=#799ae1 height=19 width=606>
<P align=center><FONT color=#ffffff><B>填空題<SPAN
lang=en-us>(</SPAN>共1題<SPAN lang=en-us>,5</SPAN>分<SPAN
lang=en-us>)</SPAN></B></FONT></P></TD></TR>
<TR class=trh1>
<TD align=middle height=96 width=30>1 </TD>
<TD align=left height=96 width=606>
在HDLC協議中，若要傳輸的數據位是011111000接收方最后接收的數據是________。 ©) <BR>答： <INPUT
class=inputnormalleft name=text2918
onblur="this.className='inputnormalleft'"
onfocus="this.className='inputedit';this.select()" size=80> <BR></TD></TR>
<TR>
<TD align=middle bgColor=#ffffff borderColor=#ffffff colSpan=2 height=21
width=640><SPAN
lang=en-us>
</SPAN><INPUT class=s02 name=B1 type=submit value=保存填空題>
</TD></TR></TBODY></TABLE>
<TABLE border=1 borderColor=#799ae1 cellSpacing=1 height=265
style="BORDER-COLLAPSE: collapse" width="100%">
<TBODY>
<TR class=trh>
<TD align=middle bgColor=#799ae1 height=21 width=29><FONT
color=#ffffff><B>序號</B></FONT></TD>
<TD align=middle bgColor=#799ae1 height=21 width=607>
<P align=center><FONT color=#ffffff><B>單項選擇題<SPAN
lang=en-us>(</SPAN>共75題,75分<SPAN lang=en-us>)</SPAN></B></FONT></P></TD></TR>
<TR class=trh1>
<TD align=middle height=212 width=29>1 </TD>
<TD align=left height=212 width=607>
為了進行差錯控制，必須對傳送的數據幀進行校驗。在局域網中廣泛使用的校驗方法是 (1) 校驗。©) <BR>答： <INPUT
class=radio name=text1504 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.奇偶(Parity)<BR> <INPUT class=radio
name=text1504 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.B．海明(Hamming)<BR> <INPUT class=radio
name=text1504 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=C>C.C．格雷(Gray)<BR> <INPUT class=radio
name=text1504 onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=D>D.D．循環冗余(CyclicRedundancy)<BR></TD></TR>
<TR class=trh1>
<TD align=middle height=212 width=29>2 </TD>
<TD align=left height=212 width=607>
為了進行差錯控制，必須對傳送的數據幀進行校驗。CRC—16標準規定的生成多項式為G(x)=X16+X15+X2+l，它產生的校驗碼是 __(2)
位©) <BR>答： <INPUT class=radio name=text1506
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=A>A.2<BR> <INPUT class=radio name=text1506
onblur="this.className='radio'"
onfocus="this.className='inputedit';this.select()" type=radio
value=B>B.4<BR> <INPUT class=radio name=text1506
onblur="this.className='radio'"
?? 快捷鍵說明
復制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號
Ctrl + =
減小字號
Ctrl + -