Computer Science – Types and methods of data transmission | e-Consult
Types and methods of data transmission (1 questions)
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Advantages of Packet Switching over Circuit Switching:
- Bandwidth Utilization: Packet switching is more efficient in using network bandwidth. Resources are only used when packets are being transmitted, unlike circuit switching where a dedicated connection is reserved regardless of whether data is being sent.
- Reliability: Packet switching is more robust. If a network link fails, packets can be rerouted along alternative paths. Circuit switching relies on a single, dedicated path, so a failure can disrupt the entire connection.
- Setup Time: Packet switching requires minimal setup time. Packets can be sent immediately without establishing a dedicated connection. Circuit switching requires a dedicated connection to be established before data transmission begins.
Disadvantages of Packet Switching over Circuit Switching:
- Variable Delay: Packets may experience variable delays due to congestion or differing routes. This can be problematic for real-time applications like voice or video.
- Overhead: The packet headers add overhead to the data, reducing the effective data throughput.
- Complexity: Packet switching networks are more complex to manage than circuit switching networks.