Data Transmission | MCQs

Explanation

In OSI reference model, when data packet moves from lower layers to higher layer, headers get removed.

Whereas when the data packet moves from higher layer to lower layers, headers are added.

Explanation

In the Internet Protocol stack (also known as the OSI model), the fifth layer is the Session Layer.

When data is sent from device A to device B, the Session Layer at device B is responsible for managing and controlling the connections between the two devices,

ensuring that the data exchange occurs correctly and efficiently.

Explanation

Data transmission is the process of sending digital or analog data over a communication medium to one or more computing, network, communication or electronic devices.

AGM 17-12-2022

Explanation

Good voice reproduction via PCM can be achieved with 128 quantization levels, or 7-bit coding (27 = 128). A voice signal, conservatively, occupies a bandwidth of 4 kHz. 

Explanation

•  USB is a serial part which provides a fast serial transmission between devices and computers.
• USB stands for: Universal Serial Bus

Explanation

Optical fiber provides the fastest data transmission by using light signals to transmit data at high speeds.

It offers significantly higher bandwidth and lower latency compared to copper or coaxial cables.