What is “multicasting” in networking?
a) Sending data to a specific group of devices on a network
b) Broadcasting data to all devices on a network
c) Encrypting data packets for security
d) A method for compressing large files
Answer:
a) Sending data to a specific group of devices on a network
Explanation:
Multicasting is a networking method where data is sent from one device to a specific group of devices, rather than broadcasting to all devices on a network. It is useful for scenarios like video conferencing or streaming where data needs to be sent to multiple recipients simultaneously.
Multicasting helps conserve bandwidth because the data is sent only once and shared by multiple devices, unlike broadcasting, where data is sent to all devices, even those that don’t need it.
This method is commonly used in streaming media applications, online gaming, and other services where efficient data transmission to multiple users is required.