Which of the following statements are true?

A. Two computers can have the same MAC address.
B. Wireless notebooks may suffer from electromagnetic interference.
C. Terrestrial microwave supports line-of-sight communication.
D. In distributed computing, computers are located in different geographical areas.

Choose the correct answer from the options given below:

Correct option is C

• B. Wireless notebooks may suffer from electromagnetic interference: Wireless devices, including notebooks, are susceptible to electromagnetic interference (EMI) from various sources such as other electronic devices, power lines, and wireless signals, affecting their connectivity and performance.

• C. Terrestrial microwave supports line-of-sight communication: Terrestrial microwave communication requires a direct line of sight between the transmitting and receiving stations, as it uses high-frequency radio waves that travel in a straight line.

• D. In distributed computing, computers are located in different geographical areas: Distributed computing involves multiple computers working together over a network, often spread across different geographical locations. This allows resources and tasks to be shared and processed efficiently over large distances.

Information Booster:

1. Electromagnetic interference (EMI) affects the performance of wireless notebooks and other wireless devices by causing disruption in signal transmission, often leading to slower connections or loss of connectivity.

2. Terrestrial microwave uses microwave frequencies to transmit data between ground-based stations, requiring an unobstructed path (line of sight) for effective communication.

3. Distributed computing enables the use of multiple computers across various locations to collaborate on a single task, enhancing computing power and efficiency in processing large volumes of data.

4. The geographical distribution of computers in a distributed system allows them to share processing resources, reducing load on any one machine and providing fault tolerance in case of hardware failure.

Additional Knowledge:

• A. Two computers can have the same MAC address: This is generally false in the context of a properly functioning network. Each computer or device on a network typically has a unique MAC address, which is used for hardware-level identification. While it's theoretically possible for two devices to have the same MAC address (e.g., through cloning or a configuration error), it would cause network issues and is considered a rare and undesirable occurrence.