Final answer:
The statement is false; Ethernet uses CSMA/CD, not CSMA/CA. CSMA/CD is used for managing data flow on Ethernet networks, while CSMA/CA is used in wireless networks like Wi-Fi.
Step-by-step explanation:
The statement Ethernet uses CSMA/CA is false. Ethernet utilizes a network access method called Carrier Sense Multiple Access with Collision Detection (CSMA/CD). This is a protocol that helps control the flow of data in networks operating in the data link layer. Ethernet networks use CSMA/CD to improve network efficiency.
In contrast, CSMA/CA, which stands for Carrier Sense Multiple Access with Collision Avoidance, is typically used in wireless networks such as Wi-Fi. This protocol anticipates and avoids collisions before they happen rather than detecting and managing them after the fact, which is the case with CSMA/CD. While both methods are essential for managing network traffic, they are utilized in different types of networks.
CSMA/CD is a method used by Ethernet to allow devices to communicate on a shared network medium. With CSMA/CD, each device listens for network traffic before transmitting its data. If it detects no traffic, it starts transmitting. However, if it detects another device transmitting at the same time, it aborts its transmission and waits for a random backoff time before trying again.
In contrast, CSMA/CA is used in wireless networking to avoid collisions on the wireless medium. It involves devices sending a request to transmit before they actually transmit, allowing other devices to know that the medium is being used.