Question

    What is the primary purpose of the ALOHA protocol in

    networking?
    A To provide a mechanism for routing data packets efficiently across multiple networks. Correct Answer Incorrect Answer
    B To manage and control the allocation of bandwidth in a shared communication medium. Correct Answer Incorrect Answer
    C To handle error correction and data integrity in communication systems. Correct Answer Incorrect Answer
    D To allow multiple users to access a shared communication channel without collisions. Correct Answer Incorrect Answer
    E To encrypt data transmissions for secure communication over the network. Correct Answer Incorrect Answer

    Solution

    The ALOHA protocol is a fundamental method used for managing access to a shared communication channel, particularly in network environments where multiple users or devices need to transmit data over the same medium. The primary purpose of ALOHA is to handle the challenge of collisions—situations where multiple devices attempt to send data simultaneously, leading to interference and data loss. There are two main types of ALOHA: • Pure ALOHA: Devices transmit data whenever they have it to send, and if a collision occurs, they wait for a random period before attempting to retransmit. • Slotted ALOHA: The time is divided into discrete slots, and devices are required to transmit only at the beginning of these slots, reducing the chance of collisions compared to Pure ALOHA.

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