CS601 Assignment 02 Solution
Question 01
Match
the protocols given in Column B with its associated layers given in Column A
and write the correct protocol against each layer of Column A in Column C.
Solution:
|
LAYERS
|
PROTOCOLS
|
Correct Choice
|
|
Application layer
|
TCP
|
FTP
|
|
Transport layer
|
Line code
|
TCP
|
|
Network layer
|
ARP
|
IP
|
|
Data link layer
|
FTP
|
ARP
|
|
Physical layer
|
IP
|
Line Code
|
Question 02
In
3rd column specify / write the appropriate choice from these three choices
(header, trailer and N/A). For example, if a layer does not deal with header or
trailer, write N/A in front of that particular layer and so on.
In
4th column, specify the appropriate choice from these five choices (data,
segment, packet, frame, bits) to its respective layer.
Give
short description of the functionality of each layer of OSI model within the
provided area in column 5.
Solution:
|
1
|
2
|
3
|
4
|
5
|
|
Sr. No.
|
Layer Name
|
Header/Trailer/
N/A
|
Data
Unit
|
Functionality
|
|
1
|
Application
|
N/A
|
Data
|
Network process to
application
|
|
2
|
Presentation
|
Header
|
Data
|
Data representation,
encryption and decryption, convert machine dependent data to machine
independent data
|
|
3
|
Session
|
Header
|
Data
|
Inter host
communication, managing sessions between applications
|
|
4
|
Transport
|
Header
|
Segment
|
End-to-end connections,
reliability and flow control
|
|
5
|
Network
|
Header
|
Packets
|
Path determination and logical
addressing
|
|
6
|
Data
Link
|
Header/Trailer
|
Frames
|
|
|
7
|
Physical
|
N/A
|
Bits
|
Media, signal and
binary transmission
|
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