WithinIS-IS,therestarthelperperformswhichtask?（）
A. ItsendsCSNPstotherestartingrouter.
B. ItperiodicallysendsTLV211totherestartingrouter.
C. Itinformsotherroutersinthedomainthatarouterhasrestarted.
D. Ittearsdownadjacencyandsendsitsentiredatabaseafter30seconds.
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WhatistruewhendesigningOSPFimportroutingpolicyinJUNOSsoftware?（）
A. Importpoliciesarenotpossible.
B. Importpoliciesonlymatchonexternalroutes.
C. Importpoliciesonlymatchoninternalroutes.
D. Importpoliciescancauseinconsistentlinkstatedatabases.
对判决的上诉期是（）天，自送达之日起计算。
A. 5
B. 10
C. 15
D. 20
WhichstatementistrueregardinganEthernetcollisiondomain?（）
A. Ifarouterisused,thecollisiondomainincludesalldevicesconnectedtotherouter.
B. Ifahubisused,thecollisiondomainislimitedtoeachdeviceandthehub.
C. Ifaswitchisused,thecollisiondomainislimitedtoeachdeviceandtheswitch.
D. Ifabridgeisused,thecollisiondomainincludesalldevicesconnectedtothebridge.
人民法院适用第一审普通程序审理的案件，应当在立案之日起（）个月内审结。
A. 3
B. 4
C. 5
D. 6
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