The Computer Network concept is most important and a relevant topic. Computer Network is all about the interaction or communication between multiple devices, systems. Nowadays the major goal of Computer Network is to improve or build the effective communication between the devices, systems by using different or numerous applications. The Application Layer plays an important role in this goal. It provides services and several high-level Protocols for message passing, transferring or managing data and information. This research paper addresses a set of Protocols comes under the Application Layer that are being used by Computer Network for a reliable or smooth communication between multiple devices and systems

OSI Model, Application Layer, Application Layer Protocols etc.

In this research paper we discussed about the different Application Layer Protocols which are majorly used for the data transfer and management. In this research paper we discussed about the five high level protocols which are used for the data transmission. Each protocol plays an important role in transferring of data and information but we concluded that HTTPs protocol provides more security to the data transmission. Mostly we saw that FTP, TFTP, SMNTP, HTTP, SMNP does not provide high level security or authentication to the data files. These protocols do not provide any encryption to communication path as compared to the HTTPs. HTTPs provides extra security and encryption to the data transmission by adding two protocols (SSL/TLC) in the communication path. HTTPs provides the facility of the masked algorithms to mask the passwords it makes the encryption strong or transmission of data more secure, no hacker or third party can intercept this easily

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