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单选题
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.
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更多 “单选题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.” 相关考题
考题
Refer to the exhibit. What switch proves the spanning－tree designated port role for the network segment that services the printers?()
A.Switch1B.Switch2C.Switch3D.Switch4
考题
Refer to the exhibit. Given the output shown from this Cisco Catalyst 2950, what is the most likely reason that interface FastEthernet 0／10 is not the root port for VLAN 2?()
A.This switch has more than one interface connected to the root network segment in VLAN 2.B.This switch is running RSTP while the elected designated switch is running 802.1d Spanning Tree.C.This switch interface has a higher path cost to the root bridge than another in the topology.D.This switch has a lower bridge ID for VLAN 2 than the elected designated switch.
考题
What are the possible trunking modes for a switch port? ()
A.transparentB.autoC.onD.desirableE.clientF.forwarding
考题
What will an Ethernet switch do if it receives a unicast frame with a destination MAC that is listed in the switch table()。
A.The switch will not forward unicast frames.B.The switch will forward the frame to a specific port.C.The switch will return a copy of the frame out the source port.D.The switch will remove the destination MAC from the switch table.E.The switch will forward the frame to all ports except the port on which it was received.
考题
A network interface port has collision detection and carrier sensing enabled on a shared twisted pair network. From this statement, what is known about the network interface port（）。A、This is a 10 Mb/s switch portB、This is a 100 Mb/s switch portC、This is an Ethernet port operating at half duplexD、This is an Ethernet port operating at full duplexE、This is a port on a network interface card in a PC
考题
Which of the following characteristics describe the BPDU Guard feature（）A、ABPDU Guard port should only be configured on ports with PortFast enabled.B、BPDU Guard and PortFast should not be enabled on the same port.C、BPDU Guard is used to ensure that superior BPDUs are not received on a switch port.D、ABPDU Guard port receiving a BPDU will go into err-disablestate.E、ABPDU Guard port receiving a BPDU will be disabled.F、BPDU Guard can be enabled on any switch port.
考题
What are the possible trunking modes for a switch port? （）A、transparentB、autoC、onD、desirableE、clientF、forwarding
考题
In the Cisco FabricPath domain， one switch becomes the root for the multidestination tree. Cisco FabricPath switches compare which three parameters to select the root？ （）A、 Root priorityB、 System IDC、 Bridge IDD、 Switch IDE、 Port IDF、 Subswitch ID
考题
A new Catalyst switch is connected to an existing switch using a crossover cable. As a result of this, what would the switch port link lights display?（）A、The switch port link lights will be off on both switches indicating the ports are not connected.B、The switch port link light will be off on one switch indicating that STP has disabled the port.C、The switch port link lights will flash amber indicating an error.D、The switch port link lights will be green indicating normal operation.
考题
What are two characteristics of the SLB One-arm mode？ （）A、 It is not as common as bridge modeB、 The MSFC is not directly connected to the CSMC、 Outbound traffic from servers may need to be directed by PBR or CSNAT to the CSMD、 The SLB is moved to a position where selected inbound and outbound server traffic goesthrough the SLBE、 The CSM statically routes inbound server traffic to the aggregation switch FWSM， then to the connected server subnet
考题
What two things will occur when an edge port receives a BPDU？（）A、The port immediately transitions to the Forwarding state.B、The switch generates a Topology Change Notification （TCN） BPDU.C、The port immediately transitions to the err-disable state.D、The port becomes a normal STP switch port.
考题
What will occur when a nonedge switch port that is configured for Rapid Spanning Tree does not receive a BPDU from its neighbor for three consecutive hello time intervals？（）A、RSTP information is automatically aged out.B、The port sends a TCN to the root bridge.C、The port moves to listening state.D、The port becomes a normal spanning tree port.
考题
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.
考题
What will an Ethernet switch do if it receives a unicast frame with a destination MAC that is listed in the switch table?（）A、The switch will not forward unicast frames.B、The switch will forward the frame to a specific port.C、The switch will return a copy of the frame out the source port.D、The switch will remove the destination MAC from the switch table.E、The switch will forward the frame to all ports except the port on which it was received.
考题
Which statement is correct about RSTP port roles？（）A、The designated port is the switch port on every nonroot bridge that is the chosen path to theroot bridge. There can be only one designated port on every switch. The designated portassumes the forwarding state in a stable active topology. All switches connected to a given segment listen to all BPDUs and determine the switch that will be the root switch for a particular segment.B、The disabled port is an additional switch port on the designated switch with a redundant link to the segment for which the switch is designated. A disabled port has a higher port ID than the disabled port on the designated switch. The disabled port assumes the discarding state in astable active topology.C、The backup port is a switch port that offers an alternate path toward the root bridge. The backup port assumes a discarding state in a stable， active topology. The backup port will be present on nondesignated switches and will make a transition to a designated port if the current designated path fails.D、The root port is the switch port on every nonroot bridge that is the chosen path to the root bridge. There can be only one root port on every switch. The root port assumes the forwarding state in a stable active topology.
考题
When STP UplinkFast is enabled on a switch utilizing the default bridge priority， what will the new bridge priority be changed to？（）A、8192B、16384C、49152D、65535
考题
When configuring port security on a Cisco Catalyst switch port， what is the default action taken by the switch if a violation occurs？ （）A、protect （drop packets with unknown source addresses）B、restrict （increment SecurityViolation counter）C、shut down （access or trunk port）D、transition （the access port to a trunking port）
考题
Refer to the output shown on switch SW1 below： VLAN 1 bridge priority set to 8192. VLAN 1 bridge max aging time set to 20.VLAN 1 bridge hello time set to 2. VLAN 1 bridge forward delay set to 15. Switch is now the root switch for active VLAN 1. What command would you enter to reproduce this output？
考题
多选题Which of the following characteristics describe the BPDU Guard feature？（Choose all that apply.）（）AA BPDU Guard port should only be configured on ports with PortFast enabledBBPDU Guard and PortFast should not be enabled on the same port.CBPDU Guard is used to ensure that superior BPDUs are not received on a switch portDA BPDU Guard port receiving a BPDU will go into err-disable stateEA BPDU Guard port receiving a BPDU will be disabledFBPDU Guard can be enabled on any switch port
考题
单选题A new Catalyst switch is connected to an existing switch using a crossover cable. As a result of this, what would the switch port link lights display?（）A
The switch port link lights will be off on both switches indicating the ports are not connected.B
The switch port link light will be off on one switch indicating that STP has disabled the port.C
The switch port link lights will flash amber indicating an error.D
The switch port link lights will be green indicating normal operation.
考题
多选题What are the possible trunking modes for a switch port? （）AtransparentBautoConDdesirableEclientFforwarding
考题
单选题Which statement is correct about RSTP port roles？（）A
The designated port is the switch port on every nonroot bridge that is the chosen path to theroot bridge. There can be only one designated port on every switch. The designated portassumes the forwarding state in a stable active topology. All switches connected to a given segment listen to all BPDUs and determine the switch that will be the root switch for a particular segment.B
The disabled port is an additional switch port on the designated switch with a redundant link to the segment for which the switch is designated. A disabled port has a higher port ID than the disabled port on the designated switch. The disabled port assumes the discarding state in astable active topology.C
The backup port is a switch port that offers an alternate path toward the root bridge. The backup port assumes a discarding state in a stable， active topology. The backup port will be present on nondesignated switches and will make a transition to a designated port if the current designated path fails.D
The root port is the switch port on every nonroot bridge that is the chosen path to the root bridge. There can be only one root port on every switch. The root port assumes the forwarding state in a stable active topology.
考题
单选题What will occur when a nonedge switch port that is configured for Rapid Spanning Tree does not receive a BPDU from its neighbor for three consecutive hello time intervals？（）A
RSTP information is automatically aged out.B
The port sends a TCN to the root bridge.C
The port moves to listening state.D
The port becomes a normal spanning tree port.
考题
单选题What will an Ethernet switch do if it receives a unicast frame with a destination MAC that is listed in the switch table（）。A
The switch will not forward unicast frames.B
The switch will forward the frame to a specific port.C
The switch will return a copy of the frame out the source port.D
The switch will remove the destination MAC from the switch table.E
The switch will forward the frame to all ports except the port on which it was received.
考题
多选题What two things will occur when an edge port receives a BPDU？（）AThe port immediately transitions to the Forwarding state.BThe switch generates a Topology Change Notification （TCN） BPDU.CThe port immediately transitions to the err-disable state.DThe port becomes a normal STP switch port.
考题
问答题Refer to the output shown on switch SW1 below： VLAN 1 bridge priority set to 8192. VLAN 1 bridge max aging time set to 20.VLAN 1 bridge hello time set to 2. VLAN 1 bridge forward delay set to 15. Switch is now the root switch for active VLAN 1. What command would you enter to reproduce this output？
考题
多选题Which of the following characteristics describe the BPDU Guard feature（）AABPDU Guard port should only be configured on ports with PortFast enabled.BBPDU Guard and PortFast should not be enabled on the same port.CBPDU Guard is used to ensure that superior BPDUs are not received on a switch port.DABPDU Guard port receiving a BPDU will go into err-disablestate.EABPDU Guard port receiving a BPDU will be disabled.FBPDU Guard can be enabled on any switch port.
考题
单选题When STP UplinkFast is enabled on a switch utilizing the default bridge priority， what will the new bridge priority be changed to？（）A
8192B
16384C
49152D
65535
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