Ch1- Spanning Tree Protocol

Question 0

Broadcast storm

Answer 0

A frame looping in a network with redundant links.

Question 1

IEEE naming for stp

Answer 1

IEEE 802.1D

Question 2

MAC table instability

Answer 2

The updating if the MAC table with wrong entries, in reaction to looping frames.

Question 3

Multiple frame transmission

Answer 3

Multiple copies of one frame being received by a host, confusing the host.

Question 4

What fields are in a BPDU

Answer 4

Root BID, senders BID, sender root cost, time values.

Question 5

How can you influence the root bridge election process.

Answer 5

With the bridge priority command.

Question 6

IEEE cost of 10 Mbps

Answer 6

100

Question 7

IEEE cost of 100 Mbps

Answer 7

19

Question 8

IEEE cost of 1 Gbps

Answer 8

4

Question 9

IEEE cost of 10 Gbps

Answer 9

2

Question 10

How often does stp send a hello message

Answer 10

Every 2 seconds

Question 11

What is the max age timer

Answer 11

The amount of time a switch should wait after ceasing to hear hello messages. The amount is 10 times the hello message.

Question 12

What is a forward delay

Answer 12

The amount of time the port waits when going from blocking to forwarding.

Question 13

What does the switch do in a listening state.

Answer 13

Removes stale MAC address from the table.

Question 14

What does a switch do in a stp learning state.

Answer 14

Switch learns the MAC address of incoming frames.