Select the false statement about CDMA technology – I. CDMA technology optimizes the use of available bandwidth as it transmits over the entire frequency range. II. Each user in a CDMA system uses a different code to modulate their signal. III. CDMA technology offers less security as compared to the GSM technology. IV. A SIM card is always required for the working of a CDMA device.

Subject: Software Engineering

Options:

1. Option A: Only (I)
2. Option B: Only (II)
3. Option C: (I) and (II)
4. Option D: (III) and (IV)

Correct Answer:

Option D: (III) and (IV)

Explanation:

Black-box testing tests functionality without knowing internal code structure.