单项选择题

Routing convergence time is which of the following？（）

A.Time required for a VPN connection to occur
B.Time required by protocols to update their forwarding tables after changes have occurred
C.Time required for an IDS to detect suspicious software
D.Time required by switch ports to update their link status and transition to the forwarding state

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热门试题

单项选择题AtechnicianisinstallingabasicrouterforaSOHOnetwork.AfterinstallingtherouterthePCsconnectedtoitarenotabletoacquireanIPaddress.Whichofthefollowingdidthetechnicianfailtoconfigurecorrectly？（）

A.DHCP
B.DNS
C.WINS
D.NAT

单项选择题WhichofthefollowingistheMOSTcommonpin-outconfigurationusedwhencrimpingRJ-45connectors？（）

A.UTP
B.T568A/B
C.STP
D.IEEE 802.5

单项选择题AnadministratorisinchargeofseveralremoteserversinJapan.Userscallandcomplaintheycannotconnecttothecompany’sresourceslocatedonthoseservers.Whichofthefollowingcommandswouldallowtheadministratortoverifytheserversarerunning？（）

A.ping
B.netstat
C.nbtstat
D.telnet

单项选择题WhichofthefollowingnetworkprotocolsisneededtoensurethatuserscantypeinaFQDNinsteadoftheIPaddress？（）

A.DNS
B.FTP
C.WINS
D.IMAP4

多项选择题WhichofthefollowingarevalidpublicIPv4addresses？（）

A.10.2.127.220/16
B.127.0.0.1/24
C.212.2.17.54/16
D.9.2.128.254/8
E.127.2.126.213/24