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Question

Code Division Multiple Access (CDMA) technology is primarily used in :

This question was previously asked in
CDS 1 2026 Maths Question Paper (12-Apr-2026)
The correct answer is
Mobile phone communication

CDMA Technology Usage

Code Division Multiple Access (CDMA) is a channel access method that allows multiple radio signals to be distinguished, without needing precise timing among them. This is achieved by assigning a unique digital code to each signal.

Primary Application of CDMA

CDMA technology finds its primary application in:

  • Mobile phone communication: This is the most common and intended use for CDMA. It enables multiple users to share the same frequency band simultaneously without significant interference, making it efficient for cellular networks.

Incorrect Applications

The other options are not primary applications for CDMA technology:

  • X-ray: This relates to medical imaging and radiation, a completely different field.
  • Artificial Intelligence (AI): AI is a branch of computer science focused on creating intelligent systems.
  • Colour Xerox: This refers to color photocopying technology.

Therefore, CDMA technology is primarily used in the context of mobile phone communication due to its ability to efficiently manage multiple users within a shared spectrum.

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