Mobile Communication Multiple Choice Questions and Answers

51. GEO stands for

1. Geometric earth orbit
2. Geo earth orbit
3. Geostationary earth orbit
4. Geo Orbit

52. GSM uses a TCH to transmit

1. data
2. number
3. user data
4. channel

53. If two or more stations access the medium at the same time, ..............occurs and the transmission data is destroyed.

1. poisson
2. destruction
3. construction
4. collision

54. I-mode service introduced in the..............year.

1. 1990
2. 1993
3. 1994
4. 1999

55. In i-mode systems the technical requirements for ringing tone download are

1. i-mode java
2. smf, mfi
3. gif
4. java

56. In Which year GSM was Founded?

1. 1982
2. 1981
3. 1992
4. 1980

57. In which year, the telephone principle was introduced?

1. 1881
2. 1891
3. 1971
4. 1861

58. In WML document cards can be grouped to form

1. deck
2. cards
3. pages
4. files

59. In...............stations sense the carrier & start sending immediately if the medium is idle.

1. non-persistentCSMA
2. P-persistent CSMA
3. Q-persistent CSMA
4. R-persistent CSMA

60. is specifically adapted to the wireless domain.

1. MAC
2. CDM
3. TDM
4. FDM