Question

How performance is improved in csma/cd protocol compared to csma protocol?

Answer 1

Answer:

In CSMA scheme, a station monitors the channel before sending a packet. Whenever a collision is detected, it does not stop transmission leading to some wastage of time. On the other hand, in CSMA/CD scheme, whenever a station detects a collision, it sends a jamming signal by which other station comes to know that a collision occurs. As a result, wastage of time is reduced leading to improvement in performance.

Explanation:

Answer 2

Answer:

1. CSMA CD is activated after a collision, whereas CSMA CA is activated before a collision.

2. CSMA CA lessens the chance of a collision, but CSMA CD just reduces the time it takes to recover.

Explanation:

• In wired networks, CSMA/CD is commonly utilized. The CSMA/CA protocol reduces the likelihood of a collision.
• CSMA/CD speeds up recuperation. CSMA/CA transmits the intent to deliver the data first, and then the sender sends the data after receiving an acknowledgment.

• Ethernet suffers from a capture effect when using CSMA/CD, making it unsuitable for supporting real-time multimedia transmission.
• It is not guaranteed to be delay bound and performs poorly under high load, resulting in excessive delay, throughput degradation, and packet loss due to collisions.

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