多項(xiàng)選擇題Which two link protocols are used to carry multiple VLANs over a single link? ()

A.VTP
B.802.1q
C.IGP
D.ISL
E.802.3u


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1.單項(xiàng)選擇題

Refer to the exhibit. Why has this switch not been elected the root bridge for VLAN1?()

A.It has more than one interface that is connected to the root network segment.
B.It is running RSTP while the elected root bridge is running 802.1d spanning tree.
C.It has a higher MAC address than the elected root bridge.
D.It has a higher bridge ID than the elected root bridge.

2.單項(xiàng)選擇題Why will a switch never learn a broadcast address?()

A.Broadcast frames are never sent to swiches.
B.Broadcast addresses use an incorrect format for the switching table.
C.A broadcast address will never be the source address of a frame.
D.Broadcasts only use network layer addressing.
E.A broadcast frame is never forwarded by a switch.

3.單項(xiàng)選擇題

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.

4.單項(xiàng)選擇題

Refer to the exhibit.All switch ports are assigned to the correct VLANs, but none of the hosts connected to SwitchA can communicate with hosts in the same VLAN connected to SwitchB. Based on the output shown, what is the most likely problem?()

A.The access link needs to be configured in multiple VLANs.
B.The link between the switches is configured in the wrong VLAN.
C.The link between the switches needs to be configured as a trunk.
D.VTP is not configured to carry VLAN information between the switches.
E.Switch IP addresses must be configured in order for traffic to be forwarded between the switches

5.多項(xiàng)選擇題

Which of the following statements describe the network shown in the graphic? ()

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.

6.單項(xiàng)選擇題Which command enables RSTP on a switch?()

A.spanning-tree mode rapid-pvst
B.spanning-tree uplinkfast
C.spanning-tree backbonefast
D.spanning-tree mode mst

7.多項(xiàng)選擇題Which two commands can be used to verify a trunk link configuration status on a given cisco switch?()

A.show interfaces interface
B.show interfaces trunk
C.show interfaces switchport
D.show ip interface brief
E.show interfaces vlan

8.多項(xiàng)選擇題Which two states are the port states when RSTP has converged?()

A.blocking
B.learning
C.discarding
D.forwarding
E.listening

9.多項(xiàng)選擇題In an Ethernet network, under what two scenarios can devices transmit? ()

A.when they receive a special token
B.when there is a carrier
C.when they detect no other devices are sending
D.when the medium is idle
E.when the server grants access

10.多項(xiàng)選擇題Which of the following are benefits of VLANs? ()

A.They increase the size of collision domains.
B.They allow logical grouping of users by function.
C.They can enhance network security.
D.They increase the size of broadcast domains while decreasing the number of collision domains.
E.They increase the number of broadcast domains while decreasing the size of the broadcast domains.
F.They simplify switch administration.