Unicast is a method of network communication where data is transmitted from a single sender to a single receiver. This type of communication is akin to a one-to-one conversation, where the information is directed specifically to one recipient. In a unicast transmission, the sender addresses the data packet to the unique IP address of the receiver, ensuring that only the intended recipient receives and processes the information. This is in contrast to other types of network communication, such as multicast or broadcast, where data is sent to multiple recipients simultaneously. Unicast is commonly used in everyday internet activities, such as web browsing, where a user’s request for a webpage is sent directly to the server, and the server’s response is sent directly back to the user. This targeted approach helps in efficient use of network resources and ensures that the communication is private and secure between the two parties involved.