What Is Tcp/ip?

Answer :

TCP/IP is a name given to the collection (or suite) of networking protocols that have been used to construct the global Internet. The protocols are also referred to as the DoD (dee-oh-dee) or Arpanet protocol suite because their early development was funded by the Advanced Research Projects Agency (ARPA) of the US Department of Defense (DoD).

What Is A Link In Case Of Tcp/ip?

Answer :

A link refers to the connectivity between two devices. It includes the type of cables and protocols used in order for one device to be able to communicate with the other.

How Many Layers Are There Under Tcp/ip?

Answer :

There are four layers: the Network Layer, Internet Layer, Transport Layer and Application Layer.

What Protocols Fall Under The Application Layer Of The Tcp/ip Stack?

Answer :

The following are the protocols under TCP/IP Application layer:

FTP, TFTP, Telnet and SMTP.

What Is The Role Of Tcp/ip In Data Transmission From Source To Destination?

Answer :

Yes, lots of them, far too many to list here. Uri Raz maintains a TCP/IP bibliography (the "TCP/IP Resources List") that is posted  to the comp.protocols.tcp-ip newsgroup on a monthly basis.

What Is The Major Disadvantage Of Star Topology In Case Of Tcp/ip?

Answer :

One major disadvantage of star topology is that once the central hub or switch get damaged, the entire network becomes unusable.

Explain range of TCP/IP classes

Answer :

 CLASS A = 1 to 126

 CLASS B = 128 to 191

 CLASS C = 192 to 223

 CLASS D = 224 to 239 (Multicasting)

 CLASS E = 240 to 255 (Research)

What is Loopback address ?

Answer : The loopback address is This address is used to check local TCP/IP

suite or local machine.

What protocol is used by PING ?

Answer : Ping uses ICMP(Internet Control Management Protocol)

Difference between Switch and Hub

Switch                     HUB

a. Works at layer 2   works at layer 1

b. Uses MAC address for packet  uses broadcast for packet forwarding


c. Does not required CSMA/CD  requires CSMA/CD

d. Faster than HUB                     Slower than Switch

e. Full-duplex    Half-duplex

f. high throughput   low throughput