Computer Science for IGCSE & O level - Data Transmission (Section 4 - No. 21)
What is the purpose of 'port numbers' in networking?
To identify a device on a network.
To uniquely identify an application or service running on a device.
To encrypt network traffic.
To determine the speed of data transfer.
स्पष्टीकरण
Port numbers distinguish different applications or services running on a device.