Question { 14057 }

what is the different between TCP and UDP?

Answer

TCP : Transmission control protocol
It is reliable connection
(reliable means sure)
It has acknowledgment
( when the packet is sent. it will get confirmation that
packet has sent successfully to destination )
Tcp port no is 7
TCP has low communication
TCP services are secure and reliable
TCP has heavy traffic
example for TCP are : Http,Ftp,Tftp,etc...
It controls the error correction



UDP: Userdatagram protcol


UDP is a non reliable connection
no acknowledgment reqired
UDP port no is 17
UDP does not contains error correction
UDP is non- reliable
UDP has High communication
UDP has less traffic
Examples of UDP are dns, dhcp,etc....

Question { CybAge, 57063 }

differnt type of port number and theire uses?

Answer

Port numbers

The Total Port numbers are 6,536 i.e 0 - 6,535
In this 0 - 1023 are called as Reversed ports or sever ports
In this 1024 - 6,535 are called as Open Ports or Client Ports.

To communicate with the sever ,we reqiured port numbers is Must.


Some of port numbers are:

Tcp 7 port number
Udp 17 port number
Http 80 Port number
Smtp 25 port number
Dns 53 port number
Dhcp 69 port number
Telnet 23 port number
Ftp 21 port number, etc..........................
0 null port number

Question { HCL, 17239 }

What is networking ?

Answer

Networking is a way to connect the computer so that they can
communicate , exchange information and share resources in
real time.

Question { 63596 }

How many Layers in Network Layer ?

Answer

In network Layer there are Two sub layer :

1. LLC 2.MAC


LLC : Logical Link Controller

MAC : Media access control

Question { IBM, 20648 }

What is flow and error control?

Answer

In short,


Flow contol : means Tranmission of data from sender to receiver.


error control : means correcting the missing segments

eg: how are you sir.

how ? you sir. in this missing segment is (are).

Question { 7182 }

A COM PORT IS A----------- PORT

Answer

com port is a communication port or a serial port. which is
used to connect the mouse,keyboard,router and modem.