Which OSI layer is concerned with reliable endtoend delivery

Which OSI layer is concerned with reliable end-to-end delivery of data?

A. Application

B. Transport

C. Network

D. Data Link

Solution

B is correct. The Transport layer is responsible for segmentation, flow control, and reliable end-to-end data delivery.

A, C, and D are incorrect. A is incorrect because the Application layer allows programs to access a network. C is incorrect because the Network layer is responsible for logical addressing and routing. D is incorrect because the Data Link layer is responsible for encapsulation, framing, media access, and physical addressing.