Refer to the topology shown in the exhibit. Which ports will be STP designated ports if all the links are operating at the same bandwidth? () A.Switch A - Fa0/0B.Switch A - Fa0/1C.Switch B - Fa0/0D.Switch B - Fa0/1E.Switch C - Fa0/0F.Switch C - Fa0/1
Refer to the topology shown in the exhibit. Which ports will be STP designated ports if all the links are operating at the same bandwidth? ()
A.Switch A - Fa0/0
B.Switch A - Fa0/1
C.Switch B - Fa0/0
D.Switch B - Fa0/1
E.Switch C - Fa0/0
F.Switch C - Fa0/1
相关考题：
Which of the following components must be elected before the Spanning Tree Protocol can converge in a switched LAN?A. Designated ports.B. Duplex operating mode.C. Fast mode ports.D. Root bridge.E. Root ports.F. BDPU priority.
Refer to the exhibit. You want to use all the routes in the EIGRP topology for IP load balancing. Which two EIGRP subcommands wou ld you use to accomplish this goal?() A. traffic - share balancedB. distanceC. maximum- pathsD. default - networkE. variance
Refer to the exhibit. Which subnet mask will place all hosts on Network B in the same subnet with the least amount of wasted addresses?() A.255.255.255.0B.255.255.254.0C.255.255.252.0D.255.255.248.0
The Certificate of pratique shall only have effect in ______.A.all ports of the issuing countryB.all ports of the worldC.all ports other than a issuing countryD.all ports of ship's arrival
Which of the following trunking modes are unable to request their ports to convert their links into trunk links？ （）A、 NegotiateB、 DesignateC、 No negotiateD、 AutoE、 ManualF、 Off
How are STP timers and state transitions affected when a topology change occurs in an STP environment？（）A、All ports will temporarily transition to the learning state for a period equal to the max age timer plus the forward delay interval.B、All ports will transition temporarily to the learning state for a period equal to the forward delay interval.C、The default aging time for MAC address entries will be reduced for a period of the max age timer plus the forward delay interval.D、The default hello time for configuration BDPUs will be reduced for the period of the max age timer.
Loop guard and UniDirectional Link Detection both protect against Layer 2 STP loops. In which two ways does loop guard differ from UDLD in loop detection and prevention？（）A、Loop guard can be used with root guard simultaneously on the same port on the same VLAN while UDLD cannot.B、UDLD protects against STP failures caused by cabling problems that create one-way links.C、Loop guard detects and protects against duplicate packets being received and transmitted on different ports.D、UDLD protects against unidirectional cabling problems on copper and fiber media.E、Loop guard protects against STP failures caused by problems that result in the loss of BPDUs from a designated switch port.
Which statement describes a spanning-tree network that has converged?（）A、All switch and bridge ports are in the forwarding state.B、All switch and bridge ports are assigned as either root or designated ports.C、All switch and bridge ports are in either the forwarding or blocking state.D、All switch and bridge ports are either blocking or looping.
Which two statements correctly describe characteristics of the PortFast feature？ （）A、STP will be disabled on the port.B、PortFast can also be configured on trunk ports.C、PortFast is required to enable port-based BPDU guard.D、PortFast is used for both STP and RSTP host ports.E、PortFast is used for STP-only host ports.
Refer to the exhibit. The two connected ports on the switch are not turning orange or green. What would be the most effective steps to troubleshoot this physical layer problem?（）A、Ensure that the Ethernet encapsulations match on the interconnected router and switch ports.B、Ensure that cables A and B are straight-through cables.C、Ensure cable A is plugged into a trunk port.D、Ensure the switch has power.E、Reboot all of the devices.F、Reseat all cables.
Refer to the exhibit. The output that is shown is generated at a switch. Which three of these statements are true? （）A、All ports will be in a state of discarding, learning, or forwarding.B、Thirty VLANs have been configured on this switch.C、The bridge priority is lower than the default value for spanning tree.D、All interfaces that are shown are on shared media.E、All designated ports are in a forwarding state.F、The switch must be the root bridge for all VLANs on this switch.
Which description is correct for a private VLAN community port with respect to Layer 2 communications？（） A、 It communicates with all other community ports in the private VLAN domain.B、 It communicates with only isolated ports in the private VLAN domain.C、 It communicates only with other community ports in the same community and associated promiscuous ports.D、 It communicates only with associated promiscuous and isolated ports.
What are the switch and bridge port characteristics of a layer two spanning-tree network that is fully converged?（）A、All switch and bridge ports are in the forwarding state.B、All switch and bridge ports are in the stand-by state.C、All switch and bridge ports are assigned as either root or designated ports.D、All switch and bridge ports are in either the forwarding or blocking state.E、All switch and bridge are either blocking or looping.
Bridges and switches are Layer 2 devices that provide the same basic functionality but that also have some differences. Which two traits apply to switches only？（）A、 supports Layer 2 VLANsB、 segment LANsC、 are faster because forwarding decisions are made on hardwareD、 typically have fewer ports because forwarding decisions are made in softwareE、 flood frames out all ports
Which of the following components must be elected before the Spanning Tree Protocol can converge in a switched LAN?（）A、designated ports.B、duplex operating mode.C、fast mode ports.D、root bridge.E、root ports.F、BDPU priority.
he Cisco Nexus 1000V Series Switches are virtual machine access switches that are an intelligent software switch implementation for VMware vSphere environments running the Cisco NX-OS Software operating system. Together with the VMware ESX hypervisor， the Nexus 1000V supports Cisco VN-Link server virtualization technology， which provides mobile virtual machine security and network policy for VMware View components， including the DHCP snooping feature. DHCP snooping is disabled on the Nexus 1000V by default. When the DHCP snooping feature is enabled on the Nexus 1000V， what are the default trust settings for the vEthernet and uplink ports？（） A、 All vEthernet ports are trusted， and all Ethernet ports such as uplinks and port channels are trusted.B、 All vEthernet ports are not trusted， and all Ethernet ports such as uplinks and port channels are not trusted.C、 All vEthernet ports are trusted and all Ethernet ports such as uplinks and port channels are not trusted.D、 All vEthernet ports are not trusted and all Ethernet ports such as uplinks and port channels are trusted.
Which of the following is a true statement when promiscuous mode is enabled on an Integrated Virtual Ethernet？（）A、 The physical port can be used as part of a Shared Ethernet Adapter （SEA）.B、 All physical ports on the Host Ethernet Adapter （HEA） default to promiscuous mode.C、 Multiple logical ports can be assigned to a physical port if that logical port is in promiscuous mode.D、 All physical ports that belong to the same port group will be set to promiscuous mode on the Host Ethernet Adapter （HEA）.
多选题Refer to the exhibit. The output that is shown is generated at a switch. Which three of these statements are true? （）AAll ports will be in a state of discarding, learning, or forwarding.BThirty VLANs have been configured on this switch.CThe bridge priority is lower than the default value for spanning tree.DAll interfaces that are shown are on shared media.EAll designated ports are in a forwarding state.FThe switch must be the root bridge for all VLANs on this switch.
单选题Which statement is true about loop guard？（）ALoop guard only operates on interfaces that are considered point-to-point by the spanning tree.BLoop guard only operates on root ports.CLoop guard only operates on designated ports.DLoop guard only operates on edge ports.
多选题Which of the following trunking modes are unable to request their ports to convert their links into trunk links？ （）ANegotiateBDesignateCNo negotiateDAutoEManualFOff
单选题Which statement describes a spanning-tree network that has converged?（）AAll switch and bridge ports are in the forwarding state.BAll switch and bridge ports are assigned as either root or designated ports.CAll switch and bridge ports are in either the forwarding or blocking state.DAll switch and bridge ports are either blocking or looping.
多选题The DAI feature has been implemented in the Company switched LAN. Which three statements are true about the dynamic ARP inspection （DAI） feature？ （）ADAI can be performed on ingress ports only.BDAI can be performed on both ingress and egress ports.CDAI is supported on access ports， trunk ports， EtherChannel ports， and private VLAN ports.DDAI should be enabled on the root switch for particular VLANs only in order to secure the ARP caches of hosts in the domain.EDAI should be configured on all access switch ports as untrusted and on all switch ports connected to other switches as trusted.FDAI is supported on access and trunk ports only.
多选题Which of the following components must be elected before the Spanning Tree Protocol can converge in a switched LAN?（）Adesignated ports.Bduplex operating mode.Cfast mode ports.Droot bridge.Eroot ports.FBDPU priority.
多选题Refer to the exhibit. The two connected ports on the switch are not turning orange or green. What would be the most effective steps to troubleshoot this physical layer problem?（）AEnsure that the Ethernet encapsulations match on the interconnected router and switch ports.BEnsure that cables A and B are straight-through cables.CEnsure cable A is plugged into a trunk port.DEnsure the switch has power.EReboot all of the devices.FReseat all cables.
单选题You are implementing basic switch security best practices. Which of these is a tactic that you can use to mitigate compromises from being launched through the switch？（）AMake all ports private VLAN ports.BPlace all unused ports in native VLAN 1 until needed.CProactively configure unused switch ports as access ports.DDisable Cisco Discovery Protocol globally.
单选题Which description is correct for a private VLAN community port with respect to Layer 2 communications？（）A It communicates with all other community ports in the private VLAN domain.B It communicates with only isolated ports in the private VLAN domain.C It communicates only with other community ports in the same community and associated promiscuous ports.D It communicates only with associated promiscuous and isolated ports.
多选题Which two statements correctly describe characteristics of the PortFast feature？ （）ASTP will be disabled on the port.BPortFast can also be configured on trunk ports.CPortFast is required to enable port-based BPDU guard.DPortFast is used for both STP and RSTP host ports.EPortFast is used for STP-only host ports.