N10-005 · Question #503
Which of the following technologies prevents network collisions to maximize safe delivery of network data?
The correct answer is A. CSMA/CA. CSMA/CA (Carrier Sense Multiple Access with Collision Avoidance) is the access method used in wireless (802.11) networks. It avoids collisions proactively by having devices sense the medium and wait before transmitting, using techniques like random backoff timers. This…
Question
Which of the following technologies prevents network collisions to maximize safe delivery of network data?
Options
- ACSMA/CA
- BDWDM
- CRADIUS
- DSONET
How the community answered
(54 responses)- A89% (48)
- B2% (1)
- C7% (4)
- D2% (1)
Explanation
CSMA/CA (Carrier Sense Multiple Access with Collision Avoidance) is the access method used in wireless (802.11) networks. It avoids collisions proactively by having devices sense the medium and wait before transmitting, using techniques like random backoff timers. This contrasts with CSMA/CD (Collision Detection), used in wired Ethernet, which detects collisions after they happen. DWDM (Dense Wavelength Division Multiplexing) is an optical fiber technology for increasing bandwidth and has no collision mechanism. RADIUS is an authentication and accounting protocol. SONET is a physical layer standard for optical networks. None of the other options address collision prevention.
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