To answer this question, you need to understand the layers of the OSI (Open Systems Interconnection) model. The OSI model is a conceptual framework that standardizes the functions of a communication system into seven distinct layers.
The layer that establishes, maintains, and terminates communications between applications located on different devices is the session layer.
Let's go through each option to understand why it is correct or incorrect:
Option A) application - The application layer is responsible for providing services directly to the user or application software. It is not involved in establishing, maintaining, and terminating communications between applications located on different devices.
Option B) presentation - The presentation layer is responsible for the translation, compression, and encryption of data. It is not involved in establishing, maintaining, and terminating communications between applications located on different devices.
Option C) session - The session layer is responsible for establishing, maintaining, and terminating sessions between applications. It provides mechanisms for synchronization, checkpointing, and recovery of data exchanged between applications. This layer ensures that communication between applications is reliable and orderly.
Option D) network - The network layer is responsible for routing packets from the source to the destination. It is not involved in establishing, maintaining, and terminating communications between applications located on different devices.
The correct answer is Option C) session. This option is correct because the session layer is specifically designed to establish, maintain, and terminate communications between applications located on different devices.