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Questions and Answers
Which protocol takes effect after a collision?
Which protocol takes effect after a collision?
- CSMA/CD (correct)
- CSMA/CA
What does CSMA/CA do in terms of collision management?
What does CSMA/CA do in terms of collision management?
- Increases the likelihood of a collision
- Reduces the possibility of a collision (correct)
- Minimizes recovery time
In which type of networks is CSMA/CD typically used?
In which type of networks is CSMA/CD typically used?
- Wireless networks
- Wired networks (correct)
What is it called when two or more devices simultaneously send data on a shared Ethernet segment, resulting in data corruption?
What is it called when two or more devices simultaneously send data on a shared Ethernet segment, resulting in data corruption?
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How are collisions mitigated on Ethernet networks?
How are collisions mitigated on Ethernet networks?
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Which protocol listens to ensure there is no traffic transmitting and implements a back-off timer if a collision occurs?
Which protocol listens to ensure there is no traffic transmitting and implements a back-off timer if a collision occurs?
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Study Notes
CSMA/CD vs CSMA/CA
- CSMA/CD (Carrier Sense Multiple Access with Collision Detection) operates after a collision occurs, while CSMA/CA (Collision Avoidance) functions to prevent collisions before they happen.
- CSMA/CA reduces collision likelihood through careful traffic management, whereas CSMA/CD focuses on minimizing recovery times after collisions happen.
- CSMA/CD is predominantly used in wired networks, whereas CSMA/CA is primarily utilized in wireless networks.
Definitions and Concepts
- A collision occurs when two or more devices transmit data simultaneously on a shared Ethernet segment, leading to data corruption.
- Collision mitigation on Ethernet networks is enhanced through full duplex switches, replacing hubs to control collision domains effectively.
- CSMA as a protocol regulates data flow over transmission media, ensuring packets remain intact and data integrity is preserved.
Specific Mechanisms
- CSMA/CD monitors network traffic and implements a back-off timer to manage retransmissions if a collision is detected.
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