6．LLC層的全稱(chēng)是

A．異步傳輸模式                                            B．寬帶綜合業(yè)務(wù)數(shù)字網(wǎng)

C．邏輯鏈路控制層                                         D．介質(zhì)訪問(wèn)控制層

7．IPv6的地址長(zhǎng)度是

A．32bit                                                          B．64bit

C．128bit                                                        D．256bit

8．報(bào)文交換又稱(chēng)為

A．?dāng)?shù)包交換                                                   B．信息交換

C．?dāng)?shù)據(jù)交換                                                   D．鏈路交換

9．?dāng)?shù)據(jù)鏈路層中繼系統(tǒng)是

A．網(wǎng)橋                                                          B．網(wǎng)關(guān)

C．轉(zhuǎn)發(fā)器                                                       D．路由器

10．以下網(wǎng)絡(luò)操作系統(tǒng)中，由Sun Microsystem公司開(kāi)發(fā)的是

A．Windows Server 2003                                  B．Net Ware

C．NFS                                                           D．VINES