Chapter 14

Question 1

What are computer network techniques

Answer 1

CSMA/CD, CSMA/CA and Token Passing

Question 2

Does repeater analogue device

Answer 2

Yes

Question 3

Is bridge digital or analogue device

Answer 3

Digital

Question 4

What is start up mode of bridge

Answer 4

When system boot up and table is empty. On receiving first frame as bridge does not have any source address, so it broadcast it everywhere. It is called start up mode.

Question 5

What is stand by mode of bridge

Answer 5

When bridge is able to grab source address from frame then bridge mode is stand by mode.

Question 6

What is propagation principle of bridges

Answer 6

The frame travel as far as it is needed

Question 7

What is parallel bridge

Answer 7

2 segments keep sending data parallel

Question 8

What are 2 common ways for bridging across longer distance

Answer 8

1. Leased serial line connection (less expensive) e.g. PTCL cable for Pakistan
2. Leased satellite channel (can span arbitrarily long distances)

Question 9

What is cycle of bridge

Answer 9

Multiple bridges connected to multiple segments in a way that it make a cycle.

Question 10

What is distributed spanning tree

Answer 10

Its a solution of broadcast frames problem in cycle of bridge. It is we need to stop these 2 rules to implement same time
1. There is a cycle of bridge
2. Every bridge broadcast frame.
Distributed spanning tree is an automated solution that selects which bridge broadcast frame and which not.