Fill in the blank with the appropriate term. In the ______________method, a device or computer that transmits data needs to first listen to the channel for an amount of time to check for any…

Question

Options

• ACSMA/CA

• A
  100% (46)

Explanation

CSMA/CA (Carrier Sense Multiple Access with Collision Avoidance) is correct because it is specifically defined by the "listen before transmit" behavior - a device must sense the channel for activity before sending data, and if the channel is busy, it waits a random backoff period to avoid collisions. This is the standard access method used in wireless networks (IEEE 802.11/Wi-Fi), where collisions cannot be detected in real time (unlike wired networks). Since only one option is provided, there are no distractors to compare against in this question.

Memory tip: Break down the acronym - CS = Carrier Sense (listen first), MA = Multiple Access (many devices share the channel), CA = Collision Avoidance (prevent crashes before they happen). Contrast it with CSMA/CD (Collision Detection, used in wired Ethernet), which detects collisions after they occur - if the question mentions wireless or "listen before transmit," think CA, not CD.

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