CDMA & FHMA - MCQs with answers

CDMA & FHMA - MCQs with answers

Q1. CDMA is

1. Spread spectrum technology
2. Using same communication medium
3. every user stays at a certain narrowband channel at a specific time period
4. each user has unique PN code

a. 1,2 and 3 are correct
b. 2 and 3 are correct
c. 1, 2 and 4 are correct
d. All the four correct

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Q2. Global Positioning System uses

a. CDMA
b. TDMA
c. SDMA
d. FDMA

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Q3. CDMA is advantageous over other Spread Spectrum techniques for

1. The privacy due to unique codes
2. It rejects narrow band interference
3. Resistance to multi path fading
4. Its ability to frequency reuse

a. 1,2 and 3 are correct
b. 2 and 3 are correct
c. 1, 2 and 4 are correct
d. All the four correct

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Q4. The wide band usage in CDMA helps in

1. Increased immunity to interference
2. Increased immunity to jamming
3. Multiple user access
4. Different spectrum allocation in different time slots

a. 1,2 and 3 are correct
b. 2,3 and 4 are correct
c. 1, 2 and 4 are correct
d. All the four correct

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Q5. The advantages of using a CDMA technique over other spread spectrum techniques are

1. Increased capacity
2. Easier handoff
3. Better measure of security
4. Multiple users occupy different spectrum at a time

a. 1,2 and 3 are correct
b. 2,3 and 4 are correct
c. 1, 2 and 4 are correct
d. All the four correct

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Q6. FHMA is

1. Spread spectrum technology
2. Using same communication medium
3. every user has assigned unique frequency slot
4. each user has unique PN code

a. 1 and 2 are correct
b. 1, 2 and 4 are correct
c. 2 and 4 are correct
d. All the four correct

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