單項(xiàng)選擇題

A switch port on TK1 is being configured to support 802.1Q trunking. 
Which of the following are true about 802.1Q trunking?()

A.Both switches must be in the same VTP domain.
B.The encapsulation type of both ends of the trunk does not have to match.
C.The native VLAN on both ends of the trunk must be VLAN 1.
D.802.1Q trunking can only be configured on a Layer 2 port.
E.In 802.1Q trunking, all VLAN packets are tagged on the trunk link, except the native VLAN.


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1.多項(xiàng)選擇題Which two table types are CEF components?()

A.forwarding information base
B.adjacency tables
C.neighbor tables
D.caching tables
E.route tables

2.單項(xiàng)選擇題Which process plays a major role in the creation of the CEF adjacency table? ()

A.Address Resolution Protocol (ARP)
B.PDU header rewrite
C.NetFlow switching
D.hello packet exchange

3.單項(xiàng)選擇題Which of the following commands can be issued without interfering with the operation of loop guard?()

A.Switch(config-if)#spanning-tree guard root
B.Switch(config-if)#spanning-tree portfast
C.Switch(config-if)#switchport mode trunk
D.Switch(config-if)#switchport mode access

4.單項(xiàng)選擇題

A port in a redundant topology is currently in the blocking state and is not receiving BPDUs. To ensure that this port does not erroneously transition to the forwarding state,
 which command should be configured to satisfy the requirement?()

A.Switch(config)#spanning-tree loopguard default
B.Switch(config-if)#spanning-tree bdpufilter
C.Switch(config)#udld aggressive
D.Switch(config-if)#spanning-tree bpduguard

5.單項(xiàng)選擇題Which spanning-tree command would cause a PortFast-enabled interface to lose its PortFast-operational status and disable BPDU filtering if it receives BPDUs?()

A.spanning-tree guard root
B.spanning-tree portfast bpduguard default
C.spanning-tree bpduguard enable
D.spanning-tree bpdufilter enable
E.spanning-tree portfast bpdufilter default

6.單項(xiàng)選擇題Which of the following conditions guarantees that a broadcast storm cannot occur?()

A.a native VLAN mismatch on either side of an 802.1Q link
B.BPDU filter configured on a link to another switch
C.Spanning Tree Protocol enabled on both Layer 2 and multilayer switches
D.PortFast enabled on all access and trunk ports

7.單項(xiàng)選擇題Which statement is true regarding the Port Aggregation Protocol? ()

A.Configuration changes made on the port-channel interface apply to all physical ports assigned to the portchannel interface.
B.Configuration changes made on a physical port that is a member of a port-channel interface apply to the port-channel interface.
C.Configuration changes are not permitted with Port Aggregation Protocol; instead, the standardized Link Aggregation Control Protocol should be used if configuration changes are required.
D.The physical port must first be disassociated from the port-channel interface before any configuration changes can be made.

8.單項(xiàng)選擇題Which command alone will disable trunking on a Layer 2 switch port?()

A.no switchport trunk native vlan vlan-id
B.switchport nonegotiate
C.no switchport mode dynamic desirable
D.switchport mode access

9.單項(xiàng)選擇題Which configuration option will cause the link between two Cisco 3600 Series Multiservice Platforms to become a functional trunk?()

A.switchport dynamic auto switchport dynamic auto
B.switchport access vlan 10 switchport mode dynamic desireable
C.switchport mode trunk switchport nonegotiate
D.Leave both ports with the default trunk settings

10.單項(xiàng)選擇題What is the effect of applying the switchport trunk encapsulation dot1q command to a port on a Cisco Catalyst switch?()

A.By default, native VLAN packets going out this port will be tagged.
B.Without an encapsulation command, 802.1Q will be the default encapsulation if DTP fails to negotiate a trunking protocol.
C.The interface will support the reception of tagged and untagged traffic.
D.If the device connected to this port is not 802.1Q-enabled, it will not be able to handle 802.1Q packets.

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