ISRO CSE 2011 | Question: 32

Question

In which layer of  network architecture, the secured socket layer (SSL) is used?

• A. physical layer
• B. session layer
• C. application layer
• D. presentation layer

Answer 1

TLS and SSL are defined as 'operating over some reliable transport layer', which places them as application layer protocols in the TCP/IP reference model and as presentation layer protocols in the OSI model.

So answer is D, Presentation Layer.

https://en.wikipedia.org/wiki/Transport_Layer_Security

Comments

but sir in this link it is given that SSL work at session layer . 
http://security.stackexchange.com/questions/19681/where-does-ssl-encryption-take-place

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the above is the protocol stack of the osi modal

Answer 2

Answer should Be Application in TCP/IP but in OSI system it will be Presentation.

Answer 3

This is a Session Layer Protocol.

Secured Socket Layer

Answer 4

SSL is a transparent protocol which requires little interaction from the end user when establishing a secure session. In the case of a browser for instance. SSL runs above the TCP/IP protocol, which is responsible for the transport and routing of data over a network, and below higher-level protocols such as HTTP and IMAP, encrypting the data of network connections in the application layer of the Internet Protocol suite. The "sockets" part of the term refers to the sockets method of passing data back and forth between a client and a server program in a network, or between program layers in the same computer.

Answer 5

In application layer, as application layer protocols in the TCP/IP reference model

And a presentation layer protocols in the OSI model.

Comments

NO IT IS IN SESSION LAYER

Answer 6

Using the OSI reference model as context, SSL runs above the TCP/IP protocol, which is responsible for the transport and routing of data over a network, and below higher-level protocols such as HTTP and IMAP, encrypting the data of network connections in the application layer of the Internet Protocol suite. The "sockets" part of the term refers to the sockets method of passing data back and forth between a client and a server program in a network, or between program layers in the same computer.