Data Communication MCQ

1. Which networking device operates at the physical layer of the OSI model to regenerate incoming electrical signals? a) Routerb) Bridgec) Repeaterd) Gateway Answer: c) … Read more

1. Which IEEE project standardizes LAN technologies such as Ethernet, Token bus, Token ring, and FDDI? a) IEEE 802.11b) IEEE 802.3c) IEEE 802.5d) IEEE 802.15 … Read more

1. What type of error detection technique involves adding a parity bit to each character to ensure even or odd parity? a) Vertical Redundancy Check … Read more

1. Which layer of the OSI model is responsible for establishing, maintaining, and terminating connections between devices?a) Application layerb) Transport layerc) Network layerd) Data link … Read more

1. What is the main difference between serial and parallel transmission?a) Serial transmission transmits data one bit at a time, while parallel transmission transmits multiple … Read more