You are the administrator of a switch and currently all host-connected ports are configured with the portfast command. You have received a new directive from your manager that states that, in the future, any host- connected port that receives a BPDU should automatically disable PortFast and begin transmitting BPDUs. Which command will support this new requirement?
A. Switch(config)#spanning-tree portfast bpduguard default
B. Switch(config-if)#spanning-tree bpduguard enable
C. Switch(config-if)#spanning-tree bpdufilter enable
D. Switch(config)#spanning-tree portfast bpdufilter default
Correct Answer: D
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?
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
Correct Answer: A
Which command 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
Correct Answer: C
Which statement is a characteristic of multi-VLAN access ports?
A. The port has to support STP PortFast.
B. The auxiliary VLAN is for data service and is identified by the PVID.
C. The port hardware is set as an 802.1Q trunk.
D. The voice service and data service use the same trust boundary.
Correct Answer: C
Which two statements are true about recommended practices that are to be used in a local VLAN solution design where layer 2 traffic is to be kept to a minimum? (Choose two.)
A. Routing should occur at the access layer if voice VLANs are utilized. Otherwise, routing should occur at the distribution layer.
B. Routing may be performed at all layers but is most commonly done at the core and distribution layers.
C. Routing should not be performed between VLANs located on separate switches.
D. VLANs should be local to a switch.
E. VLANs should be localized to a single switch unless voice VLANs are being utilized.
Correct Answer: B,D