What is the key difference between collision avoidance (Wi-Fi) and collision detection (wired Ethernet)?

Both use the same mechanism, but Wi-Fi has a shorter interframe space

Wi-Fi detects collisions by monitoring the medium while transmitting; Ethernet avoids them by using random backoff

Ethernet uses a central coordinator to prevent collisions; Wi-Fi relies on random access

Wi-Fi avoids collisions by sensing the medium and using backoff; Ethernet detects collisions after they occur and then retransmits

Juniper NetworksCertified Specialist, Mist AI Wireless (JNCIS-MistAI)

Domain 1Objective 5

Network Arbitration and Contention JN0-452 Practice Questions (Page 6)

Part of the Wi-Fi Fundamentals domain, which makes up ~20% of our current practice bank. Juniper Networks does not publish an official question count, but from its 90-minute exam (~35–60 total, ~7–12 in this domain), expect 1–2 from this objective — we provide 26 practice questions to prepare you well beyond it. (estimate)

26questions here

6free pages

12concepts

Questions 26–26

26foundation · easy
What is the key difference between collision avoidance (Wi-Fi) and collision detection (wired Ethernet)?
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Network Arbitration and Contention JN0-452 Practice Questions (Page 6)

Questions 26–26

What is the key difference between collision avoidance (Wi-Fi) and collision detection (wired Ethernet)?

Keep studying — Wi-Fi Fundamentals