Chapter 3: Implementing Spanning Tree

Question 1

True or False: MST is always preferred if you have more than a single VLAN.

Answer 1

False

Question 2

True or False: Secondary root bridges have a lower bridge priority than primary root bridges.

Answer 2

False

Question 3

The most desirable priority level for a bridge would be?

Answer 3

0

Question 4

What command is used to configure a distribution switch as the primary root of a spanning tree?

Answer 4

spanning-tree vlan vlan-id primary

Question 5

How many operational states does RSTP have?

Answer 5

2

Question 6

What is a typical convergence time in network topology of just two directly connected RSTP enabled switches?

Answer 6

Less than a second

Question 7

What is the default message interval for BPDUs in RSTP mode?

Answer 7

2 seconds

Question 8

True or False: Enabling PortFast is recommended on all ports to improve STP convergence.

Answer 8

False

Question 9

How does the Root Guard feature recover from the root-inconsistent state?

Answer 9

Automatically when the port stops receiving superior BPDUs

Question 10

BPDU filtering should be enabled only on ports connected to which of the following devices?

Answer 10

Hoses

Question 11

Which command is used to collect debugging data regarding STP events on Catalyst switches?

Answer 11

debug spanning-tree events