6．網(wǎng)橋?qū)崿F(xiàn)的尋址是

A.網(wǎng)絡(luò)地址尋址                                               B.主機地址尋址

C.MAC地址尋址                                              D.端口地址尋址

7．為了將具有大量數(shù)據(jù)傳輸?shù)钠髽I(yè)局域網(wǎng)與廣域網(wǎng)相連，不宜采用的連接方式是

A.DDN網(wǎng)                                                        B.ATM網(wǎng)

C.PSTN撥號線路                                            D.幀中繼

8．在Internet中發(fā)送電子郵件使用的協(xié)議是

A.SNMP協(xié)議                                                   B.SMTP協(xié)議

C.POP協(xié)議                                                      D.IMCP協(xié)議

9．網(wǎng)絡(luò)新聞組(USENET)進行收發(fā)網(wǎng)絡(luò)新聞使用的協(xié)議是

A.TCP                                                             B.UDP

C.HTTP                                                           D.NNTP

10．下列屬于合法的JavaScript變量名的是

A.true                                                              B.3d

C.abc *                                                            D._abc

11.用作商業(yè)組織的域名是

A.com                                                              B.edu

C.gov                                                               D.cn

12．用HTML制作網(wǎng)頁時，用一系列的標記符號描述其格式。標記名是寫在

A.{ }內(nèi)                                                            B.［］內(nèi)

C.< >內(nèi)                                                           D.( )內(nèi)

13．路由器工作在TCP/IP協(xié)議簇的

A.網(wǎng)絡(luò)接口層                                                  B.網(wǎng)絡(luò)互連層

C.傳輸層                                                         D.應(yīng)用層

14．簡單郵件傳送協(xié)議默認的端口號是

A.21                                                                B.23

C.25                                                                D.53

15．在URL描述格式的訪問方法部分，目前大多數(shù)Web使用

A.gopher                                                          B.mailto

C.news                                                            D.http