Activity 1-1

What component is responsible for translating the computer's digital signals into electrical or optical signals that travel on network cable?

A transceiver.

At which OSI layer do programs on a network node access network services?

Application

Which OSI layer packages bits of data from the Physical layer into frames?

Data Link

True or False: The Session layer is responsible for passing data to the Network layer at the lower bound and the Presentation layer at the upper bound.

False. The Session layer is between the Transport and Presentation layers.

What OSI model layer transmits bits from one device to another and modulates the transmission stream over a medium?

Physical

At which sublayer of the OSI model do network adapter cards operate?

The Media Access Control (MAC) sublayer of the Data Link layer.

Which OSI layer handles the concept of logical addressing?

The Network layer.

At which OSI layer is the concept of a port number introduced?

The Transport layer.

Which OSI layer is responsible for establishing reliable connections between two devices?

Transport