In order to properly manage the network traffic in your organization, you need a complete understanding of protocols and networking models. In regards to the 7-layer OSI model, what is the function of the Network Layer?

A.
The Network layer allows two applications on different computers to establish, use, and end a session.
This layer establishes dialog control between the two computers in a session, regulating which side transmits, plus when and how long it transmits.

B.
The Network layer manages logical addresses. It also determines the route from the source to the destination computer and manages traffic problems, such as routing, and controlling the congestion of data packets.

C.
The Network layer packages raw bits from the Physical (Layer 1) layer into frames (structured packets for data). Physical addressing (as opposed to network or logical addressing) defines how devices are addressed at the data link layer. This layer is responsible for transferring frames from one computer to another, without errors. After sending a frame, it waits for an acknowledgment from the receiving computer.

D.
The Network layer transmits bits from one computer to another and regulates the transmission of a stream of bits over a physical medium. For example, this layer defines how the cable is attached to the network adapter and what transmission technique is used to send data over the cable.

E.
The Network layer handles error recognition and recovery. It also repackages long messages, when necessary, into small packets for transmission and, at the receiving end, rebuilds packets into the original message. The corresponding Network layer at the receiving end also sends receipt acknowledgments.