OSI定义的网络管理包括配置管理、故障管理、性能管理、计费管理和安全管理五大功能,下列操作中属于性能管理的是()。
- A.网络管理者通过GetRequest获得当前处理的消息数量
- B.网络管理者通过GetRequest获得计费参数
- C.网络管理者通过SetRequest更改系统的LOG 级别
- D.网管代理通过Trap发送故障消息
正确答案及解析
正确答案
解析
性能管理考虑的是网络的利用情况。包括:采集、分析网络对象的性能参数,监测网络对象的性能,对网络线路质量进行分析。同时,统计网络运行状态信息,对网络的使用发展做出评测、估计,为网络进一步规划与调整提供依据。
性能管理必须考虑每个网络对象的利用率和性能,以及综合在一起的整个网络利用率和性能。对各种性能管理公式进行计算和分析以后得出的互联网确切性能必须接近期望的水平。
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