STP Troubleshooting STP 2

Question 1

How do you configure STP priority for load balancing across VLANs?

Accepted Answer

Set different root bridges for different VLANs using per-VLAN priority values

Answer

All VLANs must use the same root

Answer

Load balancing is not possible with STP

Answer

Use IP routing instead

Question 2

What is the TCN BPDU?

Accepted Answer

Topology Change Notification sent by a switch when it detects a port state change

Answer

A type of network attack

Answer

A timer configuration

Answer

A management message

Question 3

How does STP interact with EtherChannel?

Accepted Answer

STP treats an EtherChannel as a single logical link, preventing it from blocking individual member ports

Answer

STP blocks all EtherChannel ports

Answer

EtherChannel disables STP

Answer

They are incompatible

Question 4

What is the recommended STP configuration for access layer ports?

Accepted Answer

Enable PortFast and BPDU guard on all access ports connected to end devices

Answer

Leave default settings

Answer

Disable STP on access ports

Answer

Set all access ports as root ports

Question 5

What debugging tools are available for STP issues?

Accepted Answer

debug spanning-tree events, show spanning-tree detail, show spanning-tree interface

Answer

Only ping and traceroute

Answer

Only log files

Answer

No debugging tools exist for STP

Question 6

What is the best practice for STP timer configuration?

Accepted Answer

Use default timers unless there is a specific justified reason to change them

Answer

Always increase all timers

Answer

Set all timers to minimum

Answer

Timer changes are required for all networks