2. 计算机
  3. (71)　is　used　to　ensure　the　confidentiality,　integrity　and　authenticity　of　the　two　end　points　in　the　private　network.(72),　　an　ap

(71)　is　used　to　ensure　the　confidentiality,　integrity　and　authenticity　of　the　two　end　points　in　the　private　network.(72),　　an　ap

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问题 (71)　is　used　to　ensure　the　confidentiality,　integrity　and　authenticity　of　the　two　end　points　in　the　private　network.(72),　　an　application-layer　protocol,　authenticates　each　peer　in　an　IPsec　transaction.　IKE　negotiates　security　policy,　determining　which　algorithm　may　be　used　to　set　up　the　tunnel.　It　also　handles　the　exchange　of　session　keys　used　for　that　one　transaction.Networks　that　use(73)　to　secure　data　traffic　can　automatically　authenticate　devices　by　using(74),　which　verify　the　identities　of　the　two　users　who　are　sending　information　back　and　forth.　IPsec　can　be　ideal　way　to　secure　data　in　large　networks　that　require(75)　connections　among　many　devices.
选项 A、Certificate
B、Encryption
C、Tunnel
D、Presentation
答案B
解析
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