A.NetBEUI B.IPX/SPX C.TCP/IP D.SMTP
A.A1和A2上所有連接都加密 B.Internet連接不加密 C.銷(xiāo)售組和管理組之間的加密 D.Performance overhead for encryption is minimized
A.設(shè)置LCP extensions B.設(shè)置對(duì)客戶不回叫 C.為行政部設(shè)置用戶自行設(shè)置回叫 D.設(shè)置對(duì)行政部自行設(shè)置回叫