Discussion on Network Models & Layered Architecture for Competitive Exams 2020
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Complete Video at - Computer Network Models & Layered Architecture (Computer Science)
Topics
Network Model and its Working
Different Network Models- OSI and TCP/IP
Layered architecture
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Computer Network Model
Image of Computer Network Model
Different Computer Network Models
Computer Network Model: It is the structure and model or design which is used to perform communication between two networks.
OSI Reference Model
TCP/IP Model
OSI: It stands for ‘Open System Interconnection’ . It is the general purpose communication model in the computer network earlier days.
It is an ‘open source’ structure which means that it can be openly used for any environment and network easily for communication purpose.
It is a seven layered structured architecture.
TCP/IP: It stands for ‘Transmission Control Protocol/ Internet Protocol’.
It is a four layered architecture model. Different layer is responsible for different task.
Layered Architecture:
Various computer network models like OSI,TCP/IP work on the layered architecture, which means that there will be various layers of the model.
There are different layers of a single model will be responsible for various different work and tasks.
Let us take an example.
In Layered Network Architecture, an entity of layer N uses only services of layer N-1.
Image of Computer Network Model
Layered Network Architecture
MCQ
Q1. OSI Stands for __________
Options:
A. Open System Interconnection
B. Open Software Interconnection
C. Open System Internetworking
D. Open Session Interconnection
Answer: A
Q2.TCP/IP is a _____________Layered architecture model used in computer network.
Options:
A. 4
B. 3
C. 6
D. 7
Answer: A
Q3. TCP is
Options:
Operated at data link layer
Connection oriented and unreliable
Connection oriented and reliable
Connectionless and unreliable
Answer: C
We learnt about:
#Computer Network Model
#Layered Architecture
#Working of Layered Architecture
#OSI Model
#TCP/IP Model
We learn about other encoding techniques in further videos.
-Mayank