Optical Communication Mock Test 8

10%

Question 1 of 10

1. How many simultaneous channels can be provided in a band DGE(Dynamic gain equalizer)?

Eight

Ten

Six

Two

Question 1 of 10

Question 2 of 10

2. LED’s display good linearity.

False

True

Question 2 of 10

Question 3 of 10

3. Determine total channel loss if connector loss at source and detector is 3.5 and 2.5 dB and attenuation of 5 dB/km.

38 dB

36 dB

35 dB

34 dB

Question 3 of 10

Question 4 of 10

4. ___________ devices employ artificial nonlinearity.

Bistable

Hybrid

Extrinsic

Intrinsic

Question 4 of 10

Question 5 of 10

5. ________ BOD’s provides optical feedback.

Bistable

Extrinsic

Intrinsic

Detector

Question 5 of 10

Question 6 of 10

6. ________technique involves an increase in the number of components required.

Code division multiplexing

Time division multiplexing

Frequency division multiplexing

Space division multiplexing

Question 6 of 10

Question 7 of 10

7. A _________ maximizes the received signal-to-noise ratio in the receiver circuitry.

Reflector

Equalizer

Filter

Detector

Question 7 of 10

Question 8 of 10

8. __________ is the unique property of the glass fiber.

Opaque property

Transmission

Malleable

Ductile

Question 8 of 10

Question 9 of 10

9. Which of the following is the disadvantage of SCM?

Narrow bandwidth

Linearity

Distortion

Source nonlinearity

Question 9 of 10

Question 10 of 10

10. __________ are provided to reduce distortion and to provide a suitable signal shape for the filter.

Detector

Filters

Equalizer

Amplifier

Question 10 of 10