Telecommunications interview questions

A well-known telecommunications company uses this pop quiz for oral and written examinations of applicants for engineering positions. 1. A 2MB PCM(pulse code modulation) has… a) 32 channels b) 30 voice channels & 1 signaling channel. c) 31 voice channels & 1 signaling channel. d) 32 channels out of which 30 voice channels, 1 signaling channel, & 1 synchronization channel. Ans: c 2. Time taken for 1 satellite hop in voice communication is… a) 1/2 second b) 1 seconds c) 4 seconds d) 2 seconds Ans: (a) 3. Max number of satellite hops allowed in voice communication is: a) only one b) more han one c) two hops d) four hops Ans: (c) 4. What is the maximal decimal number that can be accommodated in a byte? a) 128 b) 256 c) 255 d) 512 Ans: (c) 5. Conditional results...

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