

MCQOPTIONS
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1. |
Consider the following advantages of optical fiber-cables :1. Small diameter2. Immunity to cross talk and electromagnetic interference. 3. Laser and LED modulation methods to lend themselves ideally to digital operation. Which of these advantages are correct? |
A. | 1 and 2 only |
B. | 2 and 3 only |
C. | 3 and 1 only |
D. | 1, 2 and 3 |
Answer» E. | |