11.在網(wǎng)絡(luò)環(huán)境中，最安全的客戶安全證書的存儲(chǔ)介質(zhì)是(      )

A.IC卡                                                            B.計(jì)算機(jī)軟盤

C.計(jì)算機(jī)硬盤                                                  D.光盤

12.電子商務(wù)網(wǎng)上交易要求對(duì)敏感信息進(jìn)行加密，即使別人截獲數(shù)據(jù)也無法得到其內(nèi)容。這是以下安全需求的哪一方面？(      )

A.身份鑒別                                                      B.機(jī)密性

C.完整性                                                         D.不可抵賴性

13.對(duì)稱密鑰體制無法保證信息的(      )

A.身份鑒別                                                      B.機(jī)密性

C.完整性                                                         D.不可抵賴性

14.數(shù)字證書申請(qǐng)的內(nèi)容與格式遵循的標(biāo)準(zhǔn)是(      )

A.PKCS#5                                                        B.PKCS#6

C.PKCS#8                                                        D.PKCS#10

15.電子支票的應(yīng)用過程可描述為(      )

A.申請(qǐng)電子支票→電子支票付款→清算           

B.購買電子支票→電子支票付款→清算

C.申請(qǐng)電子支票→電子支票付款→結(jié)算           

D.購買電子支票→電子支票付款→結(jié)算