SWRE Module 5-6

Which three components are combined to form a bridge ID?

• port ID

• IP address

• extended system ID

• MAC address

• bridge priority

In which two port states does a switch learn MAC addresses and process BPDUs in a PVST network? (Choose two.)

• blocking

• disabled

• forwarding

• learning

• listening

If no bridge priority is configured in PVST, which criteria is considered when electing the root bridge?

• lowest IP address

• lowest MAC address

• highest IP address

• highest MAC address

Which two network design features require Spanning Tree Protocol (STP) to ensure correct network operation? (Choose two.)

• static default routes

• implementing VLANs to contain broadcasts

• redundant links between Layer 2 switches

• link-state dynamic routing that provides redundant routes

• removing single points of failure with multiple Layer 2 switches

What is the outcome of a Layer 2 broadcast storm?

• Routers will take over the forwarding of frames as switches become congested.

• New traffic is discarded by the switch because it is unable to be processed.

• CSMA/CD will cause each host to continue transmitting frames.

• ARP broadcast requests are returned to the transmitting host.

When the show spanning-tree vlan 33 command is issued on a switch, three ports are shown in the forwarding state. In which two port roles could these interfaces function while in the forwarding state? (Choose two.)

• disabled

• designated

• root

• alternate

• blocked

A set of switches is being connected in a LAN topology. Which STP bridge priority value will make it least likely for the switch to be selected as the root?

• 4096

• 32768

• 61440

• 65535

A set of switches is being connected in a LAN topology. Which STP bridge priority value will make it least likely for the switch to be selected as the root?

• 4096

• 32768

• 61440

• 65535

What is the function of STP in a scalable network?

• It decreases the size of the failure domain to contain the impact of failures.

• It protects the edge of the enterprise network from malicious activity.

• It disables redundant paths to eliminate Layer 2 loops.

• It combines multiple switch trunk links to act as one logical link for increased bandwidth.

What is a characteristic of spanning tree?

• It is enabled by default on Cisco switches.

• It has a TTL mechanism that works at Layer 2.

• It prevents propagation of Layer 2 broadcast frames.

• It is used to discover information about an adjacent Cisco device.