WhichtwofeaturesorcapabilitiesarevalidoptionsforbothanAutonomousWLANsolutionandaLightweightWLANsolution？（）

A、预危险性分析 B、安全检查表法 C、工作危害分析法 D、环境因素检查表法

<img src='https://img2.soutiyun.com/ask/uploadfile/2019-03-27/3c57bf5472e55a54788da5d374cfa80b.jpg' /> A. Redistributed ro utes will be tagged as external type 1 (E1) with a metric of 30. B. Redistributed routes will be tagged as external type 2 (E2) with a metric of 20. C. Redistributed routes will maintain their original RIP routing metric. D. Redistributed routes will ha ve a default metric of 0 and will be treated as unreachable and not advertised. E. Redistributed routes will have a default metric of 0 but will not be treated as reachable and will be advertised.

A．短期借款 B．短期融资券 C．商业信用 D．长期借款

是 否

A.CACprovidesguaranteedvoicequalityonalink. B.CACartificiallylimitsthenumberofconcurrentvoicecalls. C.CACisusedtocontroltheamountofbandwidththatistakenbyacallonalink. D.CACpreventsoversubscriptionofWANresourcesthatiscausedbytoomuchvoicetraffic. E.CACallowsanunlimitednumberofvoicecallswhileseverelyrestricting，ifnecessary，otherformsoftraffic. F.CACsolvesvoicecongestionproblemsbyusingQoStogiveprioritytoUDPtraffic.