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What are the three primary functions of the presentation layer?
Coding and conversion of Application layer data to ensure that data from the source device can be interpreted by the appropriate application on the destination device. Compression of the data in a manner that can be decompressed by the destination device. Encryption of the data for transmission and the decryption of data upon receipt by the destination.
Which layer of the OSI model is responsible for formatting and encrypting data?
The layer of the OSI Model that deals with encryption, would be the sixth layer, the presentation layer. It deals with the SSL/TLS protocol which pretty much just turns your regular HTTP (hypertext transfer protocol) into HTTPS (hypertext transfer protocol secure.) It adds an encryption to certain web pages that would deal with you credit card or any other private information dealt with.
Is it compulsory that compression and encryption and translation functions will be used during communication?
The sixth OSI model layer is called the presentation layer. Protocols at this layer take care of manipulation tasks that transform data from one representation to another, such as translation, compression and encryption. In many cases, no such functions are required in a particular networking stack; if so, there may not be any protocol active at layer six.http://www.tcpipguide.com/free/t_PresentationLayerLayer6.htm
Which layer of the OSI model is responsible for providing common daya formatting techniques such as encryption and terminal emulation?
presentation layer for data encryption and transport layer for web browser encryption
At which OSI layer does data compression take places?
A network consists of multiple computers communicating with one another over a shared network medium. Topology refers to the shape of a network, or the network's layout. In this unit, you have learnt about the various topologies and its structure. The OSI model is a seven-layer model for communications and computer network protocol design. In this unit, you have learnt about the OSI model and the functions of the various layers.
Do checksums change during transmission?
If the checksum did change during transmission, wouldn't that mean a transmission error occurred? Any compression or encryption in the middle of transmission affects the data at that moment, but that's the wrong time to try to calculate a checksum for comparison purposes. (Unless it is yet another layer of error checking, used after compression/encryption but before transmission, and again after reception but before decompression/decryption.)
Which layer of the the osi model handles data translation code formatting and data encryption?
Presentation
What does ssl encryption stand for?
SSL encryption stands for "Secure Sockets Layer" encryption. It ensures secure encryption of data received and communicated to and from those accessing a website. It is important because many people will refuse to enter essentional information without the assurance of this security.
Functions of each layer in C7 signaling system?
functions of each layer in C7 signaling system
What protocol encrypts data during transfer?
All the protocols that end with S, (SMTPS,POP3S,ESMTPS,POP3S and HTTPS) use Security Socket Layer (SSL) encryption or Transport Layer Security (TLS) encryption to protect the contents of emails.
What email protocol encrypts data during transfer?
All the protocols that end with S, (SMTPS,POP3S,ESMTPS,POP3S and HTTPS) use Security Socket Layer (SSL) encryption or Transport Layer Security (TLS) encryption to protect the contents of emails.
What are advantages and disadvantages of combining the session presentation application layer in the osi model into one single application layer in internet?
by combing these layers the functionality is performed by a single layer and overhead is reduced.The disadvantage is more functions need to be performed by single layer
