The following was configured on a switch：
Switch（config） # spanning-tree portfast bpdufilter default
What is the effect of this configuration command？（）
A.If BPDUs are received by a port configured for PortFast， they are ignored and none are sent.
B.The command will enable BPDU filtering on all ports regardless of whether they are configured for BPDU filtering at the interface level.
C.If BPDUs are received by a port configured for Portfast， the port will transition to forwarding state.
D.If BPDUs are received by a port configured for PortFast， then PortFast is disabled and the BPDUs are processed normally.
E.None of the other alternatives apply.
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An SVI has been configured on a device.
Which two statements are true about a switched virtual interface （SVI）？（）
A.An SVI is normally created for the default VLAN （VLAN1） to permit remote switch administration.
B.Multiple SVIs can be associated with a VLAN.
C.SVI is another name for a routed port.
D.An SVI is created by entering the no switchport command in interface configuration mode.
E.An SVI provides a default gateway for a VLAN.
The following output was displayed on a switch.
Study the exhibit carefully. The administrator is verifying that a CEF FIB entry exists to destination network 192.168.150.0. Given the output generated by the "show ip cef" and "show adjacency detail" commands，
which three statements are true？ （）
A.The "valid cached adjacency" entry indicates that CEF will put all packets going to such an adjacency to the next best switching mode.
B.The number 003071506800 is the MAC address of the source IP address.
C.There is a valid CEF entry for the destination network 192.168.150.0.
D.The number 003071506800 is the MAC address of the 192.168.199.3 next hop IP address.
E.The counters （0 packets， 0 bytes） indicate a problem with the 192.168.199.3 next hop IP address.
F.There is an adjacency for the 192.168.199.3 next hop IP address.
You work as a network technician at. Your boss， Mrs. ， is interested in the Spanning Tree Protocol timers.
What can you tell her regarding the default STP timers？ （）
A.The hello time is 5 seconds.
B.The forward delay is 10 seconds.
C.The hello time is 2 seconds.
D.The forward delay is 15 seconds
E.The max_age timer is 15 seconds.
F.The hello time is 10 seconds.
G.The max_age timer is 20 seconds.
H.The forward delay is 20 seconds.
I.The max_age timer is 30 seconds.
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.
A.forwarding information base
B.adjacency tables
C.neighbor tables
D.caching tables
E.route tables
最新試題
Refer to the exhibit. Which Virtual Router Redundancy Protocol （VRRP） statement is true about the roles of the master virtual router and the backup virtual router？（）
Which two statements are true about BPDU port-guard and BPDU filtering？（）
How are STP timers and state transitions affected when a topology change occurs in an STP environment？（）
Refer to the exhibit. What will happen when one more user is connected to interface FastEthernet 5/1？ （）
Refer to the exhibit. What command was issued on the Layer 3 switch Sw1 between Exhibit #1 and Exhibit #2？（）
Based on the show spanning-tree vlan 200 output shown in the exhibit， which two statements about the STP process for VLAN 200 are true？ （）
Which statement is correct about the use of the virtual interface on a WLC ？（）
Refer to the exhibit. Initially， LinkA is connected and forwarding traffic. A new LinkB is then attached between SwitchA and HubA. Which two statements are true about the possible result of attaching the second link？（）
Refer to the exhibit. Switch S2 contains the default configuration. Switches S1 and S3 both have had the command spanning-tree mode rapid-pvst issued on them. What will be the result？（）
Refer to the exhibit. For what purpose is the command show ip cef used？（）