Top 150+ Solved Optical Communication MCQ Questions Answer
Q. How many encoding schemes are used in optical fiber communication system design requirements?
a. three
b. one
c. two
d. four
Q. In the optical channel bandwidth is divided into non-overlapping frequency bands.
a. time division multiplexing
b. frequency division multiplexing
c. code division multiplexing
d. de-multiplexing
Q. A multiplexing technique which does not involve the application of several message signals onto a single fiber is called as
a. time division multiplexing
b. frequency division multiplexing
c. code division multiplexing
d. space division multiplexing
Q. Which of the following is not an optical fiber component?
a. fiber
b. connector
c. circulator
d. detector
Q. technique involves an increase in the number of components required.
a. time division multiplexing
b. space division multiplexing
c. code division multiplexing
d. frequency division multiplexing
Q. SONET stands for
a. synchronous optical network
b. synchronous operational network
c. stream optical network
d. shell operational network
Q. In SONET, STS-1 level of electrical signalling has the data rate of
a. 51.84 mbps
b. 155.52 mbps c) 2488.320 mbps d) 622.080 mbps
Q. The path layer of SONET is responsible for the movement of a signal
a. from its optical source to its optical destination
b. across a physical line
c. across a physical section
d. back to its optical source
Q. The photonic layer of the SONET is similar to the of OSI model.
a. network layer
b. data link layer
c. physical layer
d. transport layer
Q. In SONET, each synchronous transfer signal STS-n is composed of
a. 2000 frames
b. 4000 frames
c. 8000 frames
d. 16000 frames
Q. Which one of the following is not true about SONET?
a. frames of lower rate can be synchronously time-division multiplexed into a higher-rate frame
b. multiplexing is synchronous tdm
c. all clocks in the network are locked to a master clock
d. sts-1 provides the data rate of 622.080mbps
Q. A linear SONET network can be
a. point-to-point
b. multi-point
c. both point-to-point and multi-point
d. single point
Q. Automatic protection switching in linear network is defined at the
a. line layer
b. section layer
c. photonic layer
d. path layer
Q. A unidirectional path switching ring is a network with
a. one ring
b. two rings
c. three rings
d. four rings