PREVIOUS YEAR SOLVED PAPERS - JULY 2016 Paper 2
26. A multiplexer combines four 100-Kbps channels using a time slot of 2 bits. What is the bit rate?
- Option : C
- Explanation : Since each two host need a cable so n(n-1)/2 cabels needed and n - 1 number of ports are required. i.e. 10(10 - 1) / 2 = 5 * 9 = 45 cables. 9 number of ports are required for each device. So, option (C) is correct.
- Option : C
- Explanation : Optical fiber uses reflection to guide light through a channel, in which angle of incidence is greater than the critical angle. So, option (C) is correct.
