Latest Multiple Choice Questions of Data Communication

Computer GK Questions 

Q.11 Deposition of dopants on fibre preforms is done by….

(A) outside vapour deposition

(B) axial vapour deposition

(C) inside vapour deposition

(D) all of these

Data Communication and Networking: MCQ-questions-for-data-communication-and-networking-part-b

Q.12 One unsolved problem with satellite systems is….

(A) coverage

(B) privacy

(C) bandwidth

(D) access

Q.13 When the index of refraction is greater in Material 1 than it is in Material 2, the velocity of propagation in Material 1 compared to Material 2 is……

(A) equal or greater

(B) greater

(C) lesser

(D) equal

Q.14 The different angles of entry of light into an optical fibre in which the diameter of the core is many times the wavelength of the light transmitted are called.

(A) Emitters

(B) Modes

(C) Sensors

(D) Refractors

Q.15 In single-mode fibre, a large fraction of the power is propagated in the……

(A) sheath

(B) core

(C) cladding

(D) air

Q.16 The coupling efficiency of an Led light source to an optical fiber with a numerical aperture of 0.2 or more is……

(A) 60 per cent

(B) 10 per cent

(C) 2 per cent

(D) 0.1 per cent

Q.17 The FT3C light wave system contains which of the following number of fibres?

(A) 12

(B) 144

(C) 128

(D) 64

Q.18 A key advantage of Sonet is its capability to enable….

(A) data to be carried at high operating rates.

(B) interoperability of optical transmission between interexchange carriers and telephone companies

(C) routing of data to the home

(D) interconnection of private networks

Q.19 The number of bytes of overhead in a Sonet frame is ….

(A) 90

(B) 9

(C) 27

(D) 87

Q.20 The number of OC-1 signals within a SONET OC-3 signal is….

(A) 3

(B) 6

(C) 9

(D) 12