In　the　following　essay,　each　blank　has　four　choices.　Choose　the　most　suitable　one　from　the　four　choices　and　write　down　in　the　an

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问题 In　the　following　essay,　each　blank　has　four　choices.　Choose　the　most　suitable　one　from　the　four　choices　and　write　down　in　the　answer　sheet.　There　are　two　types　of　key　technology:　private　key　and　public　key.　Private-key　encryption　methods　are　called(71)ciphers,　information　is　encrypted　with(72)both　the　sender　and　receiver　hold　privately.　Public-key　encryption　methods　are　called(73)ciphers,(74)created　for　each　user,　encryption　key　and　decryption　key　are(75)

选项 A、a　key
B、two　keys
C、three　keys
D、four　keys

答案A

解析

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本试题收录于：网络管理员上午基础知识考试题库软考初级分类

网络管理员上午基础知识考试

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