TCP/IP STACK

Question 1

Application Layer

Answer 1

The Application layer ensures the data is sent in an understandable format by the recipient. It formats the data to meet the standards of the protocol.

Question 2

Transport Layer

Answer 2

The transport layer takes the data and splits it
into data packets. Each one is given a number,
specifying the order so it can be recons tru cted.
The port number is also added depending on
the applic ation being used for example HTTP is
port 80.

Question 3

Network Layer

Answer 3

The network layer is where the IP of the sender
is attached, so the recipient can send a
message saying the packets were received. It
also attaches the recipients IP. This is also the
layer where the Time To Live (TTL) is added to
the header. It governs how many times the
packet can hop before deleting itself, this
ensure infinite loops don’t occur.

Question 4

Link Layer

Answer 4

This is the layer where the MAC address of
both the sender and recipient is attached,
allowing the packets to be directed to a specific
NIC.