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The performance of a data communication network depends on several critical factors, including but not limited to:
1. Bandwidth: The maximum rate of data transfer across a given path. Higher bandwidth indicates more data can be transferred in a given amount of time, which can significantly impact the network’s performance.
2. Latency: This refers to the delay before a transfer of data begins following an instruction for its transfer. Lower latency contributes to a network’s responsiveness.
3. Jitter: The variation in packet travel time. It is especially important in real-time applications, such as VoIP or online gaming. Consistent packet delivery improves network performance.
4. Throughput: This is the actual rate of successful message delivery over a communication channel. Network congestion, hardware limitations, or software issues can affect throughput.
5. Error Rate: The number of corrupted bits expressed as a percentage or fraction of the total sent. A lower error rate means fewer retransmissions are required, which in turn improves network efficiency.
6. Reliability: Indicates the network’s ability to operate without failure over a particular period of time. Network reliability can be affected by hardware failures, software bugs, and external factors such as power outages.
7. Scalability: The ability of the network to handle a growing amount of work, or its potential to be enlarged to accommodate that growth. A scalable network can adjust to increased demands without sacrificing performance.
8. Security: The protection of data
D. All of the above