Cisco 2, Module 5

Which two concepts relate to a switch port that is intended to have only end devices attached and intended never to be used to connect to another switch? (Choose two.)

• PortFast

• bridge ID

• extended system ID

• edge port

• PVST+

Which three port states are used by Rapid PVST+? (Choose three.)

• forwarding

• learning

• discarding

• blocking

• trunking

Which two statements describe a switch port that is configured with PortFast? (Choose two.)

• The switch port should never receive BPDUs.

• The switch port immediately transitions from blocking to the forwarding state.

• The switch port immediately processes any BPDUs before transitioning to the forwarding state.

• The switch port sends DHCP requests before transitioning to the forwarding state.

• The switch port immediately transitions from the listening to the forwarding state.

What is one way to correct a spanning tree failure?

• Replace all instances of STP with RSTP.

• Manually remove redundant links in the switched network.

• Replace the cables on failed STP links.

• Insert redundant links to replace the failed STP links.

When PVST is running over a switched network, which port state can participate in BPDU frame forwarding based on BPDUs received, but does not forward data frames?

• forwarding

• listening

• blocking

• disabled

An administrator is troubleshooting a switch and wants to verify if it is a root bridge. What command can be used to do this?

• show running-config

• show spanning-tree

• show vlan

• show startup-config

Which port state will switch ports immediately transition to when configured for PortFast?

• learning

• forwarding

• listening

• blocking

During the implementation of Spanning Tree Protocol, all switches are rebooted by the network administrator. What is the first step of the spanning-tree election process?

• All the switches send out BPDUs advertising themselves as the root bridge.

• Each switch with a lower root ID than its neighbor will not send BPDUs.

• Each switch determines the best path to forward traffic.

• Each switch determines what port to block to prevent a loop from occurring.

Which is the default STP operation mode on Cisco Catalyst switches?

• RSTP

• Rapid PVST+

• PVST+

• MST

• MSTP

Which STP port role is adopted by a switch port if there is no other port with a lower cost to the root bridge?

• disabled port

• root port

• designated port

• alternate