Acknowledgment (ACK): A signal sent between devices during a communication process to confirm that data has been successfully received. Typically, an ACK is sent from the receiver back to the sender after a packet of data has been received. The use of acknowledgments helps to ensure the reliability of communication systems, as it allows for error detection and prompts retransmission of data if an ACK is not received within a certain time frame.
Categories: CC D4: Network Security | CCSP D4: Cloud Application Security | CISM D4: Incident Management | CISSP D4: Communication and Network Security | Security+ D2: Threats Vulnerabilities and Mitigations | SSCP D6: Network and Communication Security
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