全國2012年1月自考《計(jì)算機(jī)網(wǎng)絡(luò)技術(shù)》試題
課程代碼：02379
 
一、單項(xiàng)選擇題(本大題共20小題，每小題2分，共40分)
在每小題列出的四個(gè)備選項(xiàng)中只有一個(gè)是符合題目要求的，請將其代碼填寫在題后的括號(hào)內(nèi)。錯(cuò)選、多選或未選均無分。
1.下列網(wǎng)絡(luò)管理功能中屬于網(wǎng)絡(luò)控制功能的是(      )
A.計(jì)費(fèi)管理                                                      B.性能管理
C.配置管理                                                      D.故障管理
2.在TCP/IP協(xié)議簇中，網(wǎng)絡(luò)管理SNMP屬于的協(xié)議層次是(      )
A.網(wǎng)絡(luò)訪問層                                                  B.應(yīng)用層
C.IP層                                                            D.TCP層
3.對(duì)網(wǎng)絡(luò)通信的安全威脅中，對(duì)可用性的威脅屬于(      )
A.假冒                                                             B.篡改
C.竊聽                                                             D.中斷
4.基本編碼規(guī)則把ASN.1表示的抽象類型值編碼為(      )
A.字節(jié)串                                                         B.字符串
C.數(shù)值                                                             D.邏輯值
5.在ASN.1宏定義中，ASN.1中的模塊類似C語言中的(      )
A.變量                                                             B.數(shù)據(jù)類型
C.結(jié)構(gòu)                                                             D.關(guān)鍵字
6.下列不屬于網(wǎng)絡(luò)互連設(shè)備的是(      )
A.交換機(jī)                                                         B.路由器
C.網(wǎng)橋                                                             D.網(wǎng)關(guān)
7.TCP/IP協(xié)議是因特網(wǎng)采用的通信協(xié)議，屬于TCP層的協(xié)議是(      )
A.IP                                                                 B.UDP
C.ICMP                                                           D.HTTP
8.SNMPv3不僅能與以前的標(biāo)準(zhǔn)SNMPv1和SNMPv2兼容，而且在SNMPv2c的基礎(chǔ)上增加了(      )
A.用戶使用數(shù)量                                               B.網(wǎng)絡(luò)服務(wù)質(zhì)量
C.網(wǎng)絡(luò)傳輸速度                                               D.安全和高層管理
9.在SNMP協(xié)議支持的服務(wù)原語中，提供從代理進(jìn)程到管理站異步報(bào)告機(jī)制的是(      )
A.Get                                                               B.Trap
C.GetNext                                                        D.Set
10.SNMP報(bào)文在管理站和代理之間傳送。由代理發(fā)給管理站，不需應(yīng)答的報(bào)文是(      )
A.SetResquest                                                   B.GetResquest
C.GetRreponse                                                  D.Trap