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OSI Model : UGC-NET CS
Lesson 12 of 40 • 2 upvotes • 10:07mins
Sourav Newatia
The Open Systems Interconnection model(OSI model) is a conceptual model that characterizes and standardizes the communication functions of a telecommunication or computing system without regard to its underlying internal structure and technology. Its goal is the interoperability of diverse communication systems with standard protocols. The model partitions a communication system into abstraction layers. The original version of the model defined seven layers. A layer serves the layer above it and is served by the layer below it. For example, a layer that provides error-free communications across a network provides the path needed by applications above it, while it calls the next lower layer to send and receive packets that comprise the contents of that path. Two instances at the same layer are visualized as connected by a horizontal connection in that layer.
Computer Networks : CBSE UGC NET
40 lessons • 5h 57m
1
Detailed View of UGC-NET (CS)
9:02mins
2
Intoduction of Networking : UGC-NET CS
10:07mins
3
Network Topologies : Part I (UGC NET CS )
9:32mins
4
Network Topologies: Part II (UGC-NET CS)
10:14mins
5
Networking Devices - Part I (UGC-NET CS)
11:35mins
6
Networking Devices: Part II (UGC NET CS)
8:32mins
7
MCQ Question related to Computer Network : UGC Net CS
7:19mins
8
IP Addressing (UGC NET CS)
11:23mins
9
IP Addressing : Part II (UGC NET CS)
12:39mins
10
IP Addressing : Part III (UGC NET CS)
11:01mins
11
IP Addressing MCQ Question : UGC NET CS
8:59mins
12
OSI Model : UGC-NET CS
10:07mins
13
TCP/IP Model : UGC-NET CS
8:14mins
14
Physical Layer : UGC net CS
9:34mins
15
Data Link Layer (UGC Net CS)
9:44mins
16
Data Link Layer:Part II ( UGC Net CS )
10:41mins
17
Previous year UGC net MCQ based on Physical layer and DataLink Layer
7:12mins
18
Network Layer : Part I (UGC Net CS)
7:02mins
19
Network Layer : Part II ( UGC Net CS)
8:31mins
20
Mcq Question Based on Network Layer
7:17mins
21
Mcq Question based on Network Layer : Part II
7:01mins
22
Transport Layer : Part III (UGC Net CSg
8:24mins
23
Transport Layer : Part I (UGC Net CS)
8:18mins
24
Transport Layer : Part II (UGC Net CS)
8:20mins
25
MCQ Question Based on Transport Layer (UGC Net CS)
7:13mins
26
MCQ Question Based on Transport Layer : Part II (UGC Net CS)
7:44mins
27
Session Layer : UGC Net CS
9:04mins
28
Presentation Layer : UGC Net CS
7:21mins
29
Application Layer : Part I (CBSE UGC Net CS)
11:07mins
30
Application Layer : Part II (UGC Net CS)
10:11mins
31
MCQ Question related to Application layer ( UGC Net CS)
7:50mins
32
Data Link Layer :Part III (UGC Net CS)
8:35mins
32
Previous year UGC Net MCQ based on Data Link Layer
7:21mins
34
Cryptography: Part I (UGC Net CS)
9:01mins
35
Cryptography Part : II (UGC Net CS)
10:16mins
36
Cryptography: Part III (UGC Net CS)
9:39mins
37
Network Security : Part I (UGC Net CS)
8:01mins
38
Network Security : Part II (UGC Net CS)
7:13mins
39
Network Security : Part III (UGC Net CS)
9:02mins
40
MCQ Question Based on Network Security and Cryptography ( UGC Net CS)
7:09mins
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