单项选择题

A.Load balancingB.QoSC.High availabilityD.Fault toleran……

A second network card in a server that activates if the primary card fails is an example of which of the following network performance optimization？（）

A.Load balancing
B.QoS
C.High availability
D.Fault tolerance

<上一题目录下一题>

热门试题

单项选择题Routingconvergencetimeiswhichofthefollowing？（）

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

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