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CompTIA Network+ N10-009 Practice Question

During a session where timely and reliable data delivery is critical, which OSI layer primarily ensures the controlled transmission of data, facilitating mechanisms for error detection and correction?

Data Link Layer
Physical Layer
Network Layer
Transport Layer

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Answer Description

The Transport layer (Layer 4 of the OSI model) is responsible for providing mechanisms for data transfer sessions between hosts. It provides services such as connection-oriented data stream support, reliability, flow control, and error correction, all of which are essential for ensuring that data packets are transmitted reliably and in sequence. The Network layer primarily deals with logical addressing and routing, while the Data Link layer handles physical addressing, error notification, and ordered delivery of frames. The Physical layer deals with the transmission and reception of unstructured raw data over a network medium.

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CompTIA Network+ N10-009

Networking Concepts

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