名词解释题根氧化力 oxidizing force of root
名词解释题
根氧化力 oxidizing force of root
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The biological sewage treatment plant utilizes Oto completely break down the sewage into an acceptable substance for discharge－into anywaters A.agitation functionB.bacteriaC.chemicaD.oxidizing function
Why would the Ezonexam administrator change the value of the spanning-tree priority of a switch?A. in order to optimize the path that frames take from source to destinationB. to increase the priority so a designated port will become a root portC. to increase the BID, so the switch is more likely to become root bridgeD. in order to allow VLANs to be sent from one switch to another across a single linkE. to force a given switch to become an STP serverF. None of the above
要获悉当前交换机是哪些VLAN的根网桥,可使用下面哪两个命令?() A.show spanning-treeB.show root allC.show spann-ing-tree port root VLAND.show spanning-tree summary
Why would an administrator change the value of the spanning-tree priority of a switch?（）A、in order to optimize the path that frames take from source to destinationB、to increase the priority so a designated port will become a root portC、to increase the BID, so the switch is more likely to become root bridgeD、in order to allow VLANs to be sent from one switch to another across a single linkE、to force a given switch to become an STP server
RSTP计算过程中，当端口收到一个RSTBPDU之后，首先为此RSTBPDU生成一个消息优先级向量（Message Priority Vector），然后根据此消息优先级向量（Message Priority Vector）生成一个根路径优先级向量（Root PathPriority Vector），然后使用根路径优先级向量（Root Path Priority Vector）和根优先级向量（Root Priority Vector）做比较。（）
RSTP根端口的根路径优先级向量（RootPath Priority Vector）比同一交换机上其他非根端口的根路径优先级向量（Root Path Priority Vector）优先或者相同。（）
When assigning a standalone access point a non-root role， which two parameters， other than Role in theradio network settings，must be configured on the SSID Manager page？（）A、Set Data Beacon RateB、Set Infrastructure SSIDC、Enable IP redirection on this SSIDD、Multiple BSSIDE、Force Infrastructure Devices to associate only to this SSID
A network administrator needs to force a high-performance switch that is located in the MDF to become the root bridge for a redundant path switched network. What can be done to ensure that this switch assumes the role as root bridge（）。A、Establish a direct link from the switch to all other switches in the network.B、Assign the switch a higher MAC address than the other switches in the network have.C、Configure the switch so that it has a lower priority than other switches in the network.D、Configure the switch for full-duplex operation and configure the other switches for half-duplex operation.E、Connect the switch directly to the MDF router, which will force the switch to assume the role of root bridge.
单选题Why would an administrator change the value of the spanning-tree priority of a switch?（）Ain order to optimize the path that frames take from source to destinationBto increase the priority so a designated port will become a root portCto increase the BID, so the switch is more likely to become root bridgeDin order to allow VLANs to be sent from one switch to another across a single linkEto force a given switch to become an STP server
多选题从端口上收到一个更优的配置BPDU之后，重新计算根交换机、根端口和根路径开销的过程将被启动。对此计算过程描述正确的是：（）A比较所有的端口上Designated Root，Designated Cost和端口Cost之和，Designated Bridge和Designated Port的值，从中选出最优参数的端口，并且此端口上记录的Designated Root要比交换机自身的Bridge Identifier更优先，此端口即为根端口B选择出根端口之后，更新交换机全局参数Designated Root为根端口记录的Designated Root；更新交换机全局参数Root Path Cost为根端口记录的Designated Cost与根端口的Port Cost之和C如果任何端口记录的Designated Root参数都不比交换机自身的Bridge Identifier更优先，则交换机全局参数Designated Root设置为交换机自身的Bridge Identifier；交换机全局参数Root Path Cost设置为0D根交换机，根端口，根路径开销计算完成并更新了交换机全局参数之后，开始启动指定端口选择过程E以上说法都不正确
名词解释题范德华力（van der Waals force）