1. Which of the following refers to the most commonly used mobile communication
system in the early 1980's?
a. NAMPS
b. NTSC
c. AMPS
2. Which of the following is not a component of the AMPS mobile communication
system?
a. message center
b. base station
c. MTSO
3. Bandwidth on a GSM system is accessed by which of the following two access
methods?
a. TDMA and FDMA
b. CDMA and TDMA
c. CDMA and FDMA
4. In determining frequency reuse patterns so that two cells using the same frequency do
not interfere with each other, what are the most frequencies permitted where N=395
and n =19?
a. 94
b. 21
c. 12
5. Satellites located 22,300 mile above the surface of the earth are said to be in which of
the following orbits?
a. low earth
b. geostationary
c. highly eliptic
6. Which of the following orbits has its apogee located 24,856 miles above the surface
of the northern hemisphere with a 65 degree inclination from the equator?
a. MEO
b. HEO
c. GEO
7. Inexpensive low earth orbiting satellites are often referred to as:
a. minisats
b. VSATs
c. lightsats
8. In GSM, base station transmission occurs in which of the following range of
frequencies?
a. 935-960 Mhz
b. 1.7 - 22Ghz
c. 890-915 Mhz
9. In GSM, mobile transmission occurs in which of the following range of frequencies?
a. 890-915 MHz
b. 1.7-2.2%20ghz
c. 935-960 MHz
10. Which of the following refers to a type of GSM channel used to carry digitized
speech or user data?
a. traffic
b. broadcast
c. common