[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3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3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3及答案与解析.doc(15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 3及答案与解析 0 ARPAnet is a wide area network(WAN) A network that connected Department of Defense research sites across(1) Created in 1 969 with funding from the Advanced Research Projects Agency(ARPA) Undergoing constant research and development in the early to mid一
2、1970s, ARPAnet(2)aS the test bed for the development of(3)(the protocols that make the Internet possible) A major goal of the ARPAnet project was to increase the militarys command and control capability by enabling communication across a variety of physically (4)media, including satellites An allied
3、 goal was to create a robust network: (5)withstanding outages, such as those that might result from a nuclear exchange ARPAnet met these objectives, but it also (6) its creators: It was found in short order that most ARPAnet users (7) use the network for(8), such as electronic mail and discussion gr
4、oups Initially, the ARPAnet was available only to government research institutes and to universities holding Department of Defense(DoD)research contracts In 1 983, ARPAnet was(9)into a high security military network(Milnet)and an ARPAnet that was recast as a research and development network Although
5、 it formed the (10) of the Internet, it was decommissioned in 1 990 1 (1) ( A) England ( B) America ( C) Europe ( D) China 2 (2) ( A) serves ( B) served ( C) reserved ( D) conserved 3 (3) ( A) ARP ( B) SMTP ( C) UDP ( D) TCP IP 4 (4) ( A) dissimilar ( B) similar ( C) comparing ( D) same 5 (5) ( A) m
6、ade to ( B) able to ( C) capable of ( D) incapable of 6 (6) ( A) surprised ( B) satisfied ( C) confused ( D) affiicted 7 (7) ( A) could hardly ( B) rufused to ( C) preferred to ( D) only needed 8 (8) ( A) control ( B) getting orders ( C) communication ( D) war 9 (9) ( A) splat ( B) dividedC。 merged
7、( C) integrity 10 (10) ( A) hypothesis ( B) proving ( C) symbol ( D) foundation 10 Kerberos was developed at (1) in 1998s It was named after the three-headed watchdog in classical Greek mythology that guards the gates to Hades The name is apt because Kerberos is a(2)process, depending on a thrid par
8、ty service called the(3)to verify one computerS identity to another and to set up (4) for a secure connection between them Basically, Kerberos works because each computer shares a secret with the KDC, which has two components: a Kerberos authentication server and a (5)server If a KDC doesnt know the
9、 requested target server, it refers the authentication transaction to(6)that does Kerberos is a network(7)protocol that allows one computer to(8)its identity to another across an insecure network through an exchange of encrypted messages Once identity is verified, kerberos provides the two computer
10、with (9) for a secure communication session Kerberos authenticates the identity and encrypts their communications through (10) 11 (1) ( A) ANSI ( B) ITU ( C) MIT ( D) ISO 12 (2) ( A) all-way ( B) three-way ( C) fully ( D) two-way 13 (3) ( A) Key Distribution Center ( B) Key Storage Server ( C) Ident
11、ification Center ( D) Encryption Server 14 (4) ( A) password ( B) identity ( C) encryption keys ( D) signature 15 (5) ( A) time control ( B) ticket granting ( C) token ( D) login 16 (6) ( A) another KDC ( B) upper KDC ( C) central KDC ( D) user 17 (7) ( A) authority ( B) authentication ( C) identifi
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