Computer Networks - Quiz II

Explanation
An endpoint of an inter-process communication flow across a computer network is called a socket. A socket allows different processes to communicate with each other by providing a communication channel between them. It acts as an interface for sending and receiving data between processes, enabling communication across a network. Sockets can be used for various types of communication, such as TCP/IP or UDP, and they are essential for establishing connections and transmitting data between different devices or applications in a networked environment.

Explanation
In a virtual circuit network, each packet contains a virtual circuit number. This number is used to identify the specific virtual circuit that the packet belongs to. It helps the network to establish and maintain the connection between the sender and the receiver by associating the packets with the correct virtual circuit. This allows for more efficient and reliable communication as the packets can be routed through the network using the virtual circuit number, ensuring that they reach the intended destination.

Explanation
The data link layer takes the packets from the network layer and encapsulates them into frames for transmission. This layer is responsible for providing a reliable and error-free communication link between two devices on the same network. By encapsulating the packets into frames, the data link layer adds necessary control information such as source and destination addresses, error detection, and flow control mechanisms to ensure the successful transmission of data over the physical network.

Explanation
Fiber optic transmission media has the highest transmission speed in a network because it uses light signals to transmit data. These light signals can travel at extremely high speeds, allowing for faster data transfer rates compared to other transmission media such as copper or wireless. Additionally, fiber optic cables have a larger bandwidth capacity, meaning they can transmit a greater amount of data simultaneously. This combination of high speed and large bandwidth makes fiber optic the ideal choice for high-speed networks.