To answer this question, you need to understand the layers of the OSI (Open Systems Interconnection) model.
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 - This option is incorrect because the application layer is responsible for providing services directly to the end-user applications.
Option B) session - This option is correct because the session layer is responsible for managing the communication sessions between applications, including establishing, maintaining, and terminating the sessions.
Option C) transport - This option is incorrect because the transport layer is responsible for providing reliable end-to-end data delivery and error recovery.
Option D) network - This option is incorrect because the network layer is responsible for routing packets between different networks.
Option E) data link - This option is incorrect because the data link layer is responsible for providing error-free transmission over a physical link.
The correct answer is B) session. This option is correct because the session layer is specifically designed to handle the establishment, maintenance, and termination of communications between applications located on different devices.