Data Comms 2

The internet model consists of _______layers

• three

• five

• seven

• eight

______is a type of transmission impairment in which the signal loses strength due to the resistance of the transmission medium

• Attenuation

• Distortion

• Noise

• Decibel

data are continuous and take continuous values

• analog

• digital

• (a) & (b)

• none of the above

In ______transmission, a start bit and a stop bit frame a character byte

• Asynchronous

• synchronous

• parallel

• (a) & (b)

Transmission media lie below the ______layer

• physical

• network

• transport

• application

Which of the following primarily uses guided media?

• cellular telephone system

• local telephone system

• satellite communication

• radio broadcasting

A television broadcast is an example of _______transmission

• simplex

• half duplex

• full duplex

• automatic

In a _____connection, more than two devices can share a single link

• point to point

• multipoint

• primary

• secondary

A _____ is a data communication system within a building, plant or campur or between nearby buildings

• MAN

• WAN

• LAN

• none of the above

A ______ is a set of rules that governs data communication

• forum

• protocol

• standard

• none of the above