Top 150+ Solved Mobile Communication MCQ Questions Answer
Q. What are the types of inter register signalling?
a. en-bloc signalling
b. overlap signalling
c. both 1 and 2
d. none of the above
Q. Erlang determined GoS of lost call system of finite number of trunks based on assumptions: 1. Pure chance traffic 2. Statistical equilibrium 3. Full availability 4. calls which face congestion and get lost
a. 1 and 2
b. 2 and 3
c. 3 and 4
d. all of the above
Q. Traffic tables show relationships of ____________
a. offered traffic \a\
b. blocking probability (gos)
c. number of trunks \n\
d. all of the above
Q. A group of 10 servers carry a traffic of 5E. If the average duration of calls is 1.5 minutes, calculate the number of calls put through by a single server and a group as a whole in 1 hr period.
a. 20 calls and 200 calls
b. 10 calls and 200 calls
c. 5 calls and 100 calls
d. none of the above
Q. A group of 5 trunks carry a traffic of 2E. Find 1. GoS 2. Probability that only one trunk is busy.
a. 0.037 and 0.275
b. 0.027 and 0.325
c. 0.047 and 0.475
d. none of the above
Q. Over 10 minutes observation interval, 20 subscribers initiate a call. Total duration of calls is 2400sec. Calculate load offered to network by the subscribers and average subscriber traffic?
a. 4e and 0.1e respectively
b. 2e and 0.5e respectively
c. 3e and 1.5e respectively
d. 1e and 0.2e respectively
Q. Which among the following represents the flawless hand-off with no perceivable interruption of service?
a. Hard hand-off
b. Soft hand-off
c. Intracell hand-off
d. Intercell hand-off
Q. If more number of cells are necessary in the frequency reuse distance, then the segmentation & dualization techniques get ________
a. United
b. Divided
c. Restricted
d. Filtered
Q. Which method of cellular network assists in minimizing the co-channel interference associated with the angle of degree?
a. Cell Splitting
b. Cell Sectoring
c. Cell Segmentation & Dualization
d. None of the above
Q. Which effect is widespread in adjacent-channel interference especially after the reception of a weak signal by a mobile user from the base-station?
a. Near-far effect
b. Doppler\s effect
c. Capture effect
d. Kendall effect
Q. Which antennas are used at the center of the cells for the system with hexagonal-shaped cells?
a. Omni-directional antennas
b. Sectored directional antennas
c. Both a and b
d. None of the above
Q. The most comman dial up service used by a person making home telephone call is_____________
a. Analog Switched Service
b. Analog Leased Service
c. Switched/56 Service
d. Digital Data Service
Q. For Telephone voice Transmission to use a T line, the signal must be __________________ before the multiplexed.
a. Synchronized
b. Modulated
c. Sampled
d. Filterd
Q. The propagation model that estimates radio coverage of a transmitter is called ___________
a. Large scale propagation model
b. Small scale propagation model
c. Fading model
d. Okumura model
Q. The mechanism behind electromagnetic wave propagation cannot be attributed to _____
a. Reflection
b. Diffraction
c. Scattering
d. Sectoring