WhataretwoexamplesofREexceptiontraffic?（）
A. BGPupdatesthattravelthroughthelocalrouterandaredestinedforaremoterouter.
B. OSPFhellopacketsthataresentfromaremoterouterandaredestinedforthelocalrouter.
C. Telnettrafficthatissentfromaremotehostandisdestinedforthelocalrouter.
D. Telnettrafficthattravelsthroughthelocalrouterandisdestinedforaremoteendhost.
WhathappenswhenHostCheckerisconfiguredtoperformchecksevery"0"minutes?（）
A. HostCheckerisdisabled.
B. HostCheckerwillperformcontinouschecks.
C. HostCheckerwillperformcheckswhenuserlogsout.
D. HostCheckerwillperformcheckswhenuserfirstlogsin.
WhichofthefollowingtoolswouldbeBESTtousetopryopenthecaseofalaptop?（）
A. Metalscrewdriver
B. Plasticwedge
C. Needle-nosepliers
D. Extensionmagnet
国际法的基本原则有（）
A. 主权平等
B. 禁止以武力相威胁或使用武力
C. 不干涉内政
D. 和平解决国际争端
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