名词解释题Single switch
名词解释题
Single switch
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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
Which of the following devices would allow a technician to utilize a single mouse, keyboard, and display to control numerous desktop PCs?() A. Port replicatorB. Docking stationC. USB hubD. KVM switch
What is the purpose of the cisco Vlan Trunking protocol?() A. to provide a mechanism to dynamically assign vlan membership to switch portsB. to allow traffic to be carried from multiple vlans over a single link between switchesC. to allow native vlan information to be carried over a trunk linkD. to provide a mechanism to manually assign vlan membership to switch portsE. to allow for managing the additions,deletions,and changes of vlans between switchs
A company has a small network,consisting of a single switch and a single router.The switch has been configured with two vlans,and route-on-a-stick is being configured on the router for inter-vlan routing.A trunk is configured to connect the switch to the router.What is the minimum number of router subinterfaces that are required for all the vlans to communicate?（）A. oneB. threeC. twoD. zero
Which statements concerning the switch construct are true？（） A、All switch statements must have a default label.B、There must be exactly one label for each code segment in a switch statement.C、The keyword continue can never occur within the body of a switch statement.D、No case label may follow a default label within a single switch statement.E、A character literal can be used as a value for a case label.
The LAN needs are expanding at the Testking corporate office, which is quickly growing. You are instructed to enlarge the area covered by a single LAN segment on the TestKing network.Which of the following are layer 1 devices that you can use?（）A、A switch.B、A router.C、A network adapter card.D、A hub.E、A repeater.
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
When a new trunk link is configured on an IOS based switch, which VLANs are allowed over the link（）。A、By default, all defined VLANs are allowed on the trunk.B、Each single VLAN, or VLAN range, must be specified with the switchport mode command.C、Each single VLAN, or VLAN range, must be specified with the vtp domain command.D、Each single VLAN, or VLAN range, must be specified with the vlan database command.
What are two characteristics of dual-ring interconnect in SDH networks？ （）A、 It protects signals against node failures between rings.B、 It protects signals against node failure within a single ring.C、 It allows for traffic to be preempted when a ring switch occurs.D、 Traffic can be dropped and continued at interconnecting nodes.E、 It protects preemptible traffic from being dropped when a ring switch occurs.
Which statement about NPIV is true？（）A、 NPIV provides a means to assign multiple Fibre Channel IDs to a single N-port.B、 NPIV can be enabled on a per-VSAN basis.C、 NPIV requires a "write erase" and then reload the switch in order to come up into NPIV mode. D、 NPIV is a Cisco proprietary feature and as such works only between two Cisco switches.E、 NPIV must not be enabled on a switch that is also running N-port virtualization.
What is the purpose of the cisco Vlan Trunking protocol?（）A、to provide a mechanism to dynamically assign vlan membership to switch portsB、to allow traffic to be carried from multiple vlans over a single link between switchesC、to allow native vlan information to be carried over a trunk linkD、to provide a mechanism to manually assign vlan membership to switch portsE、to allow for managing the additions,deletions,and changes of vlans between switchs
You need to design the VLAN scheme for the Company network. Which two statements are true about best practices in VLAN design？（）A、Routing should occur at the access layer ifvoice VLANs are utilized. Otherwise， routing should occur at the distribution layer.B、Routing should always be performed at the distribution layer.C、VLANs should be localized to a switch.D、VLANs should be localized to a single switch unlessvoice VLANs are being utilized.E、Routing should not be performed between VLANs located on separate switches.
A company has a small network,consisting of a single switch and a single router.The switch has been configured with two vlans,and route-on-a-stick is being configured on the router for inter-vlan routing.A trunk is configured to connect the switch to the router.What is the minimum number of router subinterfaces that are required for all the vlans to communicate?（）A、oneB、threeC、twoD、zero
Which of the following devices would allow a technician to utilize a single mouse, keyboard, and display to control numerous desktop PCs?（）A、Port replicatorB、Docking stationC、USB hubD、KVM switch
单选题A company has a small network，consisting of a single switch and a single router.The switch has beenconfigured with two vlans，and route-on-a-stick is being configured on the router for inter-vlan routing.Atrunk is configured to connect the switch to the router.What is the minimum number of router subinterfacesthat are required for all the vlans to communicate？（）AoneBthreeCtwoDzero
多选题You work as an administrator at ABC.com. The ABC.com network consists of a single domain named ABC.com. All servers in the ABC.com domain， including domain controllers， have Windows Server 2012 R2 installed.ABC.com has a Hyper-V server， named ABC-SR13， which hosts multiple virtual machines. You have enabled the use of Single-root I/O virtualization.Which of the following is TRUE with regards to using Single-root I/O virtualization？（）AIt maximizes network throughput， while minimizing network latency.BIt maximizes network throughput， as well as network latency.CIt avoids the virtual switch stack and allows the virtual machine direct access to the actual network switch.DIt prevents the virtual machine from accessing the network switch directly.
单选题An administrator has a single 14U rack. The administrator needs to install fifteen servers； rack-mounted redundant uninterruptible power supplies （UPSs）， a network switch， and a KVM. Which of the following server types would be BEST suited for this scenario？（）ABlade serversBRackmount serversCTower serversDWeb servers
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
单选题Which statements concerning the switch construct are true？（）AAll switch statements must have a default label.BThere must be exactly one label for each code segment in a switch statement.CThe keyword continue can never occur within the body of a switch statement.DNo case label may follow a default label within a single switch statement.EA character literal can be used as a value for a case label.
单选题Which statement about NPIV is true？（）A NPIV provides a means to assign multiple Fibre Channel IDs to a single N-port.B NPIV can be enabled on a per-VSAN basis.C NPIV requires a write erase and then reload the switch in order to come up into NPIV mode. D NPIV is a Cisco proprietary feature and as such works only between two Cisco switches.E NPIV must not be enabled on a switch that is also running N-port virtualization.
多选题Which statements describe two of the benefits of VLAN Trunking Protocol？（）AVTP allows routing between VLANs.BVTP allows a single switch port to carry information to more than one VLAN.CVTP allows physically redundant links while preventing switching loops.DVTP simplifies switch administration by allowing switches to automatically share VLAN configuration information.EVTP helps to limit configuration errors by keeping VLAN naming consistent across the VTP domain.FVTP enhances security by preventing unauthorized hosts from connecting to the VTP domain.
单选题In which of the following lists of APS Action Requests is the priority correctly arranged from lowest tohighest？（）AWait-to-Restore，Forced Switch，Manual Switch，Lockout of ProtectionBManual Switch，Wait-to-Restore，Lockout of Protection，Forced SwitchCLockout of Protection，Forced Switch， Manual Switch，Wait-to-RestoreDLockout of Protection，Manual Switch， Forced Switch，Wait-to-RestoreEWait-to-Restore，Manual Switch，Forced Switch，Lockout of ProtectionFWait-to-Restore，Manual Switch，Lockout of Protection，Forced Switch
多选题In a collapsed core design， which two benefits are provided by a second-generation Cisco MDS director？ （）Aa higher fan-out ratioBfully redundant switchesC100 percent port efficiencyDall ISLs contained within a single chassisEhigher latency and throughput than a core-edge design switch
单选题What is the purpose of the cisco Vlan Trunking protocol?（）Ato provide a mechanism to dynamically assign vlan membership to switch portsBto allow traffic to be carried from multiple vlans over a single link between switchesCto allow native vlan information to be carried over a trunk linkDto provide a mechanism to manually assign vlan membership to switch portsEto allow for managing the additions,deletions,and changes of vlans between switchs