关于合同转让，下列说法错误的是（)。A．转让合同权利、义务约定不明确的，视为未转让B．只可转让权利

A.none，sinceitisimplicit

B.toenableCiscoIOSIPStoworkproperly；however，itisthedenyalltrafficentrythatisactuallyrequired

C.toenableCiscoIOSFirewalltoworkproperly；however，itisthedenyalltrafficentrythatisactuallyrequired

D.toallowthelogoptiontobeusedtologanymatches

E.topreventsyncfloodattacks

F.topreventhalf-openedTCPconnections

A.There are two broadcast domains in the network.

B.There are four broadcast domains in the network.

C.There are six broadcast domains in the network.

D.There are four collision domains in the network.

E.There are five collision domains in the network.

F.There are seven collision domains in the network.

A.它被设置一次，并影响整个路由器的命令

B.这是所有外国和国内IOS版本执行命令

C.一个命令是普遍应用，并支持所有协议

D.命令中可用的IOS的每一个版本，无论版本或部署状态

E.可以在任何配置模式中输入一个命令

A.Whentheroutergoesintoquietmode，anyhostispermittedtoaccesstherouterviaTelnet，SSH，and HTTP，sincethequiet-modeaccesslisthasnotbeenconfigured.

B.Theloginblock-forcommandisconfiguredtoblockloginhostsfor93seconds.

C.Allloginsfromanysourcesareblockedforanother193seconds.

D.Threeormoreloginrequestshavefailedwithinthelast100seconds.

A.VTP的操作

B.VLAN中继的方法

C.一种方法，无线LAN通信

D.该过程根桥的选择

E.VLAN修剪

A.8

B.6

C.30

D.32

E.14

F.16

A.multipleprivilegelevels

B.usernamesandpasswords

C.aaanew-modelcommand

D.secretpasswordfortherootuser

E.HTTPand/orHTTPSserver

A.把网络的不稳定性局限于单个区域

B.减少路由器配置的复杂性

C.加快汇聚

D.通过分布层交换机更换路由器，以降低成本

E.通过增加带宽来减少延迟

F.减少路由负载

A.show interfaces interface

B.show interfaces trunk

C.show interfaces switchport

D.show ip interface brief

E.show interfaces vlan