Untitled Flashcards Set

Transmission Medium

A physical path between the transmitter and the receiver for data communication.

Bandwidth

The capacity of a medium to transmit data, where higher bandwidth leads to higher data transmission rates.

Transmission Impairment

When the received signal is not identical to the transmitted one, degrading signal quality.

Interference

The disruption of a signal when unwanted signals are added during transmission.

Attenuation

The loss of signal strength over distance, measured in decibels (dB).

Amplifiers

Devices used to boost attenuated signals back to their original strength.

Distortion

Change in the shape of a signal, often due to different propagation speeds of signal frequencies.

Noise

Unwanted signals added to the transmitted signal, complicating reception.

Unshielded Twisted Pair (UTP)

A type of twisted pair cable that blocks interference without a physical shield.

Shielded Twisted Pair (STP)

Twisted pair cable that includes a jacket to block external interference.

Coaxial Cable

Cable with an outer plastic covering and inner conductors used for high-frequency transmission.

Fiber Optic Cable

Cables that transmit data as light through a core of glass or plastic, providing high bandwidth.

Microstripline

A type of transmission line where the conducting material is separated from the ground plane by a layer of dielectric.

Guided Media

Transmission media that uses a physical pathway for signals to travel.

Unguided Media

Wireless transmission media where no physical path is required.

Simplex communication

One-way communication where the sender can send signals, but the receiver cannot send back.

Half-duplex communication

Allows communication in both directions, but not simultaneously.

Full-duplex communication

Allows simultaneous two-way communication, enabling both sender and receiver to transmit at the same time.

Auto-sensing

A feature of network interface cards that allows detection of operational modes.