Defamation of hub

A hub is any connection device. However, its specific meaning is multiple repeater .it is basically used for connection station in a physical star topology. All network required a center location to bring media segment tougher .these center location called hub

DIFFERENT between the hub & switch

S.N	Hub	Switch
1	It is board cast device	It is point to point device
2	It operation on physical layer	It operation on data link layer
3	It is an not intelligent device	It is intelligent device
4	It simple board cast incoming packet	It use switching table to find correct detection
5	It cannot be used to repeater	It can be used to repeater
6	Not a sophisticate device	It is a suffocated  device
7	Very cost	cost

People also ask

Which type of cable is used to connect router to switch?

Summary

Device A	Device B	Cable
Router	Switch	Straight-through Cable
Switch	Switch	Crossover Cable
Switch	Hub	Crossover Cable
Switch	PC	Straight-through Cable

6 more rows

Bridge

As metal of fact bridge operation in the physical layer as well in data link layer . it can be regenerate this signal that it Receiver and data link  layer device , it can check address of source and destination contain frame

There  are two type of bridge

1 transport bridge

2routing bridge

Datalimk layer and transport layer

S.N	Data link layer	Transport layer
1	Communication it through a physical channel		Communication is through a sub net
2	It is not necessary to specific destination router		Explicit addressing of destination is essential
3	Establishing a connection is simple		Initial connection  established is more complex
4	No storage capacity		There is some storage capacity in subnet
5	No addition delay		Delay is introduce due to the storage capacity

Different between guided and unguided media

SN	Guided media	Unguided media
1	The signal energy is contain and guided with in solid medium	The signal energy progagate in the form of unguided  electromagnetic wave
2	Twisted air wires ,coaxial optical fiber cable of example of guided media	Radio infraded light
3	Used for point to point communication direction	Used to radio broadcast
4	Wired media lead to discreate network topology	Wireless media lead to continue net
5	Addition transmission capacity can be produce by addit more wire	It is not possible produce addition capacity
6	Installation costly time consium	Installation need  less timer

Compare  different between  ma

sn	Massage switching	Circuit switching	Packet switching
1	Telegraph network for transmission of voice signal	Telephone network for bi direction real time transfer  between computer	Internet for data  reliable service
2	Tele graph	Telephone modem	Computer
3	Asscii morse	Analog voice pcm	Binary information
4	Digital data over different  transmission media	Analog and digital over transfission media	Digital data over different media
5	Geographic address	Hierachical numbering plan	Hierarchical
6	mannul	Route select	Each packet routed independently
7

ssage and  packet md circuit switching