Question

The three important goals of data communications are delivery at correct destination,
accurate delivery and
late delivery​

Answer 1

The system must deliver data accurately. 3. Timeliness: The system must deliver data in a timely manner.

Answer 2

The three important goals of data communications are delivery at correct destination, accurate delivery and late delivery​.

• Data that has been tampered with during transmission and is not restored is useless.
• accepts the receiver's incoming data. The destination device could be a network switch, a computer, a phone, etc. The device typically processes the data in some way so that a user or a programme running on the device can make use of it.
• Data must be delivered by the system promptly. Late data delivery is meaningless. When it comes to video and audio, timely delivery entails sending the data as soon as it is created, in the same order, and without any noticeable delays. Real-time transmission is the term for this type of distribution.
• Simplex communication, Half-duplex communication, and Full-duplex communication are the three main methods of data communication between devices. In a one-way or unidirectional communication, one device acts as the sender and the other as the receiver.
• The smooth interchange of data between any two sites on the planet is the primary goal of data communication and networking. This data transfer happens across a computer network. Data are the unprocessed facts that are gathered, whereas information are the processed facts that help us make judgments.
• Overall, data communication enables firms to cut costs and boost productivity by exchanging data and common resources among numerous machines. In addition, the network may be linked together using cables, phone lines, or infrared beams, which is less expensive and lowers costs.

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