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(36)A. 对称密钥密码技术 B.公钥密码技术
C. 数字签名技术 D.访问控制技术
(37)A. 16 B. 128 C.64 D. 56
(38)A. DES B. RSA C.Hash D.IDEA
(39) A. 对称密钥技术,有1个密钥 B. 不对称密钥技术,有2个密钥
C. 对称密钥技术,有2个密钥 D.不对称密钥技术,有1个密钥
(40)A. RSA B. DES C.Hash D. IDEA
答案:ADABA
Frame Relay is simplified form of _(41)_ ,similar in principle to _(42)_, in which synchronous, frames of data are routed to different destinations depending on header information .
Packets are routed throught one or more Virtual Circuits known as _(43)_. Most Virtual Circuits are _(44)_,which means that the network provider sets up all DLCI connections at subscription time . _(45)_are also part of the Frame Relay specification . They privide a link that only lasts only as long as the session .
(41)A. Datagram Switching B.Datagram Routing
C. Packet Switching D. packet Routing
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