软件水平考试

【单选题】 (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 alsohandles 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. IPSeccan be ideal way to secure data in large networks that require secure connections among many devices.
Users deploying IPSec can (75) their network infrastructure without affecting the applications on individual computer. The protocol suite is available as a software-only upgrade to the networkinfrastructure. This alows security to be implemented without costly changes to each computer. Mostimportant, IPSec allows interoperability among different network devices, PCs and other computingsystems.
A．characteristics
B、associated links C．digital certificates D．attributes
网考网参考答案：C
网考网解析：
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