CSMA/CD is mainly used in:
CSMA/CD is mainly used in:
Answer: A. Ethernet LAN — ConceptCarrier Sense Multiple Access with Collision Detection (CSMA/CD) is a medium-access-control method for a shared, half-duplex broadcast channel. A…
- A.
Ethernet LAN
- B.
GSM
- C.
CDMA Networks
- D.
Satellite Communication
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Correct answer: A
Concept
Carrier Sense Multiple Access with Collision Detection (CSMA/CD) is a medium-access-control method for a shared, half-duplex broadcast channel. A station listens before transmitting; if two stations transmit together, they detect the collision, stop, and wait for independently chosen backoff intervals before retrying.
Application
A classic shared-medium Ethernet LAN, such as coaxial Ethernet or a hub-based Ethernet segment, has exactly this contention model. Its stations share one collision domain, so carrier sensing and collision detection regulate access to the medium.
Contrast
GSM allocates radio resources through frequency and time slots.
CDMA separates concurrent radio users with spreading codes.
Satellite systems generally coordinate access through scheduled or demand-assigned frequency, time, or code resources.
Result
Therefore, CSMA/CD is mainly associated with Ethernet LANs, specifically legacy shared and half-duplex Ethernet; modern switched full-duplex Ethernet does not need collision detection.