[计算机类试卷]软件水平考试中级网络工程师上午基础知识(计算机专业英语)历年真题试卷精选2及答案与解析.doc
《[计算机类试卷]软件水平考试中级网络工程师上午基础知识(计算机专业英语)历年真题试卷精选2及答案与解析.doc》由会员分享,可在线阅读,更多相关《[计算机类试卷]软件水平考试中级网络工程师上午基础知识(计算机专业英语)历年真题试卷精选2及答案与解析.doc(14页珍藏版)》请在麦多课文档分享上搜索。
1、软件水平考试中级网络工程师上午基础知识(计算机专业英语)历年真题试卷精选 2及答案与解析 0 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 (7
2、2) A square wave has an infinite number of frequency components and hence an infinite (73) However, the peak amplitude of the kth frequency component, kf, is only 1 k, so most of the (74)in this waveform is in the first few frequency components In general, any digital waveform will have(75)bandwidth
3、 If we attempt to transmit this waveform as a signal over any medium, the transmission system will limit the bandwidth that can be transmitted.(2010年上半年试题 ) 1 (71) ( A) frequencies ( B) connections ( C) diagrams ( D) resources 2 (72) ( A) procedures ( B) function ( C) route ( D) medium 3 (73) ( A) s
4、ource ( B) bandwidth ( C) energy ( D) cost 4 (74) ( A) frequency ( B) energy ( C) amplitude ( D) phase 5 (75) ( A) small ( B) 1imited ( C) infinite ( D) finite 5 Routing protocols use different techniques for assigning(1)to individual network Further, each routing protocol forms a metric aggregation
5、 in a different way Most routing protocols can use multiple paths if the paths has an equal(2) Some routing protocols can even use multiple paths when paths have an unequal cost In either case, load(3)can improve overall allocation of network bandwidth When multiple paths are used, there are several
6、 ways to distribute the packets The two most common mechanisms are per packet load balancing and per destination load balancing Perpacket load balancing distributes the(4)across the possible routes in a manner proportional to the route metrics Per-destination load balancing distributes packets acros
7、s the possible routes based on(5) (2009年下半年试题 ) 6 (1) ( A) calls ( B) metrics ( C) 1inks ( D) destinations 7 (2) ( A) user ( B) distance ( C) entity ( D) cost 8 (3) ( A) bracketing ( B) balancing ( C) downloading ( D) transmitting 9 (4) ( A) destinations ( B) resources ( C) packets ( D) sources 10 (
8、5) ( A) destinations ( B) resources ( C) packets ( D) sources 10 The Border Gateway Protocol(BGP)is an interautonomous system (6)protocol The primary function of a BGP speaking system is to exchange network(7)information with other BGP system This network reachability information includes informatio
9、n on the list of Autonomous System(Ass)that reachability information traverses BGP-4 provides a new set of mechanisms for supporting(8)interdomain routing These mechanisms include support for advertising an IP (9)and eliminate the concept of network class within BGP BGP一 4 also introduces mechanisms
10、 that allow aggregation of routes,including (10)of AS paths These changes provide support for the proposed supemetting scheme (2009年上半年试题 ) 11 (6) ( A) connecting ( B) resolving ( C) routing ( D) supemettting 12 (7) ( A) secubility ( B) reachability ( C) capability ( D) reliability 13 (8) ( A) answe
11、rless ( B) connectionless ( C) confirmless ( D) classless 14 (9) ( A) prefix ( B) suffix ( C) infix ( D) reflex 15 (10) ( A) reservation ( B) relation ( C) aggregation ( D) connection 15 The usual way to ensure reliable delivery is to provide the(11)with some feedback about what is happening at the
12、other end of the line Typically, the protocol calls for the receiver to send back special (12)flame bearing positive or negative (13)about the incoming flames If the sender receives a positive Acknowledgement about a flame,it knows the flame has arrived safely On the other hand, a negative acknowled
- 1.请仔细阅读文档,确保文档完整性,对于不预览、不比对内容而直接下载带来的问题本站不予受理。
- 2.下载的文档,不会出现我们的网址水印。
- 3、该文档所得收入(下载+内容+预览)归上传者、原创作者;如果您是本文档原作者,请点此认领!既往收益都归您。
下载文档到电脑,查找使用更方便
2000 积分 0人已下载
下载 | 加入VIP,交流精品资源 |
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- 计算机 试卷 软件 水平 考试 中级 网络工程师 上午 基础知识 计算机专业 英语 历年 精选 答案 解析 DOC

链接地址:http://www.mydoc123.com/p-506691.html