Carrier Sense Multiple Access with Collision Detection (CSMA/CD): A network protocol that operates at the data link layer (Layer 2) of the OSI model, which manages communication between devices in a wired network, such as Ethernet. The protocol allows devices to detect whether the shared communication channel is busy before attempting to transmit data, thus avoiding potential collisions. If a collision is detected, the devices involved will stop transmitting, wait for a random period, and then attempt to transmit again. This process continues until a successful transmission is achieved. CSMA/CD is crucial in ensuring effective communication and data integrity in networks where multiple devices are competing for bandwidth.
Categories: CC D4: Network Security | CCSP D3: Cloud Platform and Infrastructure Security | CISM D3: Information Security Program | CISSP D4: Communication and Network Security | Security+ D3: Security Architecture | SSCP D6: Network and Communication Security
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