COMPUTER NETWORKING

PHYSICAL LAYER AND TRANSMISSION MEDIA

TRANSMISSION MEDIA

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which type of transmission media requires a physical path between devices?
A
Guided transmission media
B
Wireless transmission media
C
Digital transmission media
D
Optical transmission media
Explanation: 

Detailed explanation-1: -Guided Transmission Media. Guided media are also known as wired or bounded media. These media consist of wires through which the data is transferred. Guided media is a physical link between transmitter and recipient devices.

Detailed explanation-2: -Guided transmission media consists of physical connection between source and destination through a wire or a cable. There are three basic types of guided media which are as follows − Twisted pair cable. Co-axial cable. Fiber-optic cable.

Detailed explanation-3: -In information correspondence terminology, a transmission medium is an actual way between the transmitter and the receiver i.e. it is the channel through which information is sent starting with one spot then onto the next.

Detailed explanation-4: -Guided − In guided media, transmitted data travels through cabling system that has a fixed path. For example, copper wires, fibre optic wires, etc. Unguided − In unguided media, transmitted data travels through free space in form of electromagnetic signal. For example, radio waves, lasers, etc.

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