若软弱下卧层承载力不能满足要求，下列措施无效的是（)。A．增大基础面积B．减小基础埋深C．提高混凝

e Cisco IOS is outdated and needs to be updated.Which of the following commands would the technician issue to replace the Cisco router IOS with the newer version?（）

A. Router#copy tftp flash

B. Router(config)#restore flash

C. Router(config)#repair flash

D. Router#copy flash run

E. Router>copy start flash

F. Router#copy start flash

sign requires 100 separate subnetworks,so the company has acquired a Class B network address.What subnet mask will provide the 100 subnetworks required, if 500 usable host addresses are required per subnet?（）

A. 255.255.240.0

B. 255.255.248.0

C. 255.255.252.0

D. 255.255.254.0

E. 255.255.255.0

F. 255.255.255.192

92.168.20.24/29, the router is assigned the first usable host address while the sales server is given the last usable host address. Which of the following should be entered into the IP propertied box for the sales server?（）

A. IP address:192.168.20.14 Subnet Mask:255.255.255.248 Default Gateway:192.168.20.9

B. IP address:192.168.20.254 Subnet Mask:255.255.255.0 Default Gateway:192.168.20.1

C. IP address:192.168.20.30 Subnet Mask:255.255.255.248 Default Gateway:192.168.20.25

D. IP address:192.168.20.30 Subnet Mask:255.255.255.240 Default Gateway:192.168.20.17

E. IP address:192.168.20.30 Subnet Mask:255.255.255.240 Default Gateway:192.168.20.25

A.queuecreation

B.determiningpacketdropthresholds

C.determiningtherandomearlydetectionmethod

D.trafficclassification

E.queuescheduling

F.FIFOconfiguration

A. STP

B. VTP

C. GVRP

D. SNMP

E. DHCP

A.bothtrafficshapingandtrafficpolicingcauseretransmissionsofconnection-orientedprotocolssuchasTCP

B.bothtrafficshapingandtrafficpolicingsupportthemarkingandre-markingoftraffic

C.theeffectsoftrafficshapingandtrafficpolicingwhenconfiguredonarouterareappliedtooutgoingtraffic

D.trafficshapingqueuesexcesstrafficwhereastrafficpolicingdiscardsexcesstraffic

E.trafficshapingallowsthetraffictoexceedthebitratewhereastrafficpolicingpreventsthetrafficfromexceedingthebitrate

networks attached to the new router do not appear in the routing tables of the other OSPF routers.Given the information in the partial configuration shown below,what configuration error is causing this problem?（）Router(config)router ospf 1Router(config-router)network 10.0.0.0 255.0.0.0 area 0

A. The process id is configured improperly

B. The OSPF area is configured improperly

C. The network wildcard mask is configured improperly

D. The network number is configured improperly

E. The AS is configured improperly

F. The network subnet mask is configuerd improperly

A.preventpacketsfrombeingdropped

B.increaseavailablebandwidth

C.reducehardwareerrors

D.providepredictablenetworkservice

E.eliminatepropagationdelay

F.eliminatejitterandpacketloss

A.usethecommandipnbarprotocol-discoverytoallowidentificationofstatefulprotocols.Usethecommandipnbarport-maptoattachtheprotocolstoaninterface

B.usethecommandmatchprotocolrtptoallowidentificationofreal-timeaudioandvideotraffic.Usethecommandipnbarport-maptoextendtheNBARfunctionalityforwell-knownprotocolstonewportnumbers

C.usethecommandmatchprotocoltoallowidentificationofstatefulprotocols.Usethecommandipnbarport-maptoattachtheprotocolstoaninterface

D.configureatrafficclass.Configureatrafficpolicy.Attachthetrafficpolicytoaninterface.

E.configurevideostreaming.Configureaudiostreaming.Attachthecodectoaninterface

A. the IP address of the first Fast Ethernet interface

B. the IP address of the console management interface

C. the highest IP address among its active interfaces

D. the lowest IP address among its active interfaces

E. the priority value until a loopback interface is configured