Consider the following statements regarding multiple access techniques & identify the CORRECT ones.
A. ALOHA is used for multiple access on a shared medium
B. TDMA uses WALSH TABLES for time slot allocation
C. CSMA/CD was invented for wireless networks
D. CDMA codes are sequences of numbers generated by orthogonal codes
Choose the correct answer from the options given below:
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Correct answer: D. A & D only
Explanation
ALOHA is a random-access protocol for a shared medium (A true). Walsh tables are used in CDMA, not TDMA (B false). CSMA/CD was designed for wired Ethernet; wireless LANs use CSMA/CA (C false). CDMA chip sequences are orthogonal codes (D true).More Data Communication and Computer Networks questions
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