ISO-OSI-layers

Question 1

What is the main reason for developing ISO/OSI model for networks?

A
Manufactures disliked the TCP/IP protocol suite
B
The rate of data transfer was increasing exponentially
C
Standards were needed to allow any two systems to communicate
D
None of the given options
       Computer-Networks       ISO-OSI-layers       APPSC-2016-DL-CA
Question 1 Explanation: 
The main reason for developing the OSI model for networks is to create a common platform for software developers and hardware manufactures that encourage the creation of networking products that can communicate with each other over the network. To help network administrators by dividing large data exchange process in smaller segments.
Question 2

Which layer functions as a liaison between user support layers and network support layers?

A
Network layer
B
Physical layer
C
Transport layer
D
Session layer
       Computer-Networks       ISO-OSI-layers       APPSC-2016-DL-CA
Question 3
The major functions of the presentation layer in OSI stack are :
A
Dialog presentation and control
B
Dealing with differences in data representation, encryption and compression
C
Presenting the full and half duplex services to the user
D
Enabling end to end error control presentation
       Computer-Networks       ISO-OSI-layers       TNPSC-2017-Polytechnic-CS
Question 3 Explanation: 
The main function of presentation layer in OSI are translation, encryption and data compression.
Question 4
In which layer of the OSI model, DBMS and email software are found
A
Presentation Layer
B
Transport layer
C
Application Layer
D
Sessional layer
       Computer-Networks       ISO-OSI-layers       APPSC-2012-DL-CS
Question 4 Explanation: 
Both the end user and the application layer interact with the software applications.
There are 4 questions to complete.

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