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隶属试卷 题号 题干 难度系数/错误率
   2015年下半年
   网络工程师
   上午试卷 综合知识
第71题
选择题
The Dynamic Host Configuration Protocol provides configuration parameters to  Internet (71). DHCP consists of two components: a (72) for delivering host-specific configuration parameters from a DHCP server to a host and a mechanism for allocation of network addresses to hosts. DHCP is built on a client-server model, where designated DHCP server hosts allocate network addresses and deliver..

48%
   2015年上半年
   网络工程师
   上午试卷 综合知识
第71题
选择题
Traditional network layer packet forwarding relies on the information provided by network layer(71)protocols, or static routing, to make an independent forwarding decision at each(72)within the network. The forwarding decision is based solely on the destination (73) IP address. All packets for the same destination follow the same path across the network if no other equal-cost (74)..

33%
   2015年上半年
   网络工程师
   上午试卷 综合知识
第63题
选择题
参见下面的网络连接图,4个选项是Host A的ARP表,如果HostA ping HostB,则ARP表中的哪一选项用来封装传输的帧?(63)。

66%
   2014年下半年
   网络工程师
   上午试卷 综合知识
第11题
选择题
思科路由器的内存体系由多种存储设备组成,其中用来存放IOS引导等程序的是(11),运行时活动配置文件存放在(12)中。

45%
   2014年上半年
   网络工程师
   上午试卷 综合知识
第71题
选择题
The traditional way of allocating a single channel among multiple competing users is to chop up its (71) by using one of the multiplexing schemes such as FDM (Frequency Division Multiplexing). If there are N users, the bandwidth is divided into N equal-sized portions, with each user being assigned one portion. Since each user has a private frequency (72), there is no interference among users.When ..

58%
   2013年上半年
   网络工程师
   上午试卷 综合知识
第37题
选择题
主机host1对host2进行域名查询的过程如下图所示,下列说法中正确的是(37)。

49%
   2012年上半年
   网络工程师
   上午试卷 综合知识
第71题
选择题
The TCP protocol is a (71) layer protocol. Each connection connects two TCPs that may be just one physical network apart or located on opposite sides of the globe. In other words, each connection creates a (72) with a length that may be totally different from another path created by another connection. This means that TCP cannot use the same retransmission time for all connections. Selecting a fix..

56%
   2011年下半年
   网络工程师
   上午试卷 综合知识
第71题
选择题
A transport layer protocol usually has several responsibilities. One is to create a process-to-process communication; UDP uses (71) numbers to accomplish this. Another responsibility is to provide control mechanisms at the transport level. UDP does this task at a very minimal level. There is no flow control mechanism and there is no (72) for received packet. UDP, however, does provide error contro..

54%
   2011年下半年
   网络工程师
   上午试卷 综合知识
第44题
选择题
Kerberos由认证服务器(AS)和票证授予服务器(TGS)两部分组成,当用户A通过Kerberos向服务器V请求服务时,认证过程如下图所示,图中①处为(44),②处为(45)。

41%
   2011年下半年
   网络工程师
   上午试卷 综合知识
第39题
选择题
某网络拓扑结构如下图所示:

在主机hostl的命令行窗口输入tracertwww.abc.com.cn命令后,得到如下结果:
C:\Documents and Settings\User>tracert www.abc.com.cn
Tracing route to caelum .abc.com.cn [208.30.1.101]
over a maximum of 30 hops:
1 1ms 1ms <1ms 119.215.67.254
2 2ms 1ms 1ms  172.116. 11.2
3 71ms 1ms 1ms 119.145. 65.86 
4 1ms 1ms 1ms 172.11..

32%
   2011年上半年
   网络工程师
   上午试卷 综合知识
第39题
选择题
某网络拓扑如下图所示,在主机host1上设置默认路由的命令为(39);在主机host1上增加一条到服务器server1主机路由的命令为(40)。

42%
   2011年上半年
   网络工程师
   上午试卷 综合知识
第18题
选择题
Cisco路由器操作系统IOS有三种命令模式,其中不包括(18) 。

11%
   2010年下半年
   网络工程师
   上午试卷 综合知识
第71题
选择题
The metric assigned to each network depends on the type of protocol. Some simple protocol, like RIP, treats each network as equals. The (71) of passing through each network is the same; it is one (72) count. So if a packet passes through 10 network to reach the destination, the total cost is 10 hop counts. Other protocols, such as OSPF, allow the administrator to assign a cost for passing through ..

54%
   2010年上半年
   网络工程师
   上午试卷 综合知识
第71题
选择题
Although a given waveform may contain frequencies over a very broad range, as a practical matter any transmission system will be able to accommodate only a limited band of (71) . This, in turn, limits the data rate that can be carried on the transmission (72) . A square wave has an infinite number of frequency components and hence an infinite (73). However, the peak amplitude of the Mi frequency c..

53%
   2009年下半年
   网络工程师
   上午试卷 综合知识
第71题
选择题
Routing protocols use different techniques for assigning (71) to individual networks. Further, each routing protocol forms a metric aggregation in a different way. Most routing protocols can use multiple paths if the paths have an equal (72) . Some routing protocols can even use multiple paths when paths have an unequal cost In either case, load (73) can improve overall allocation of network bandw..

52%
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