Question

QUESTION 42

1. ____ was the first-generation cellular telephone system.​

   	a.	​Global System for Mobile (GSM) Communications
   	b.	​Advanced Mobile Phone Service (AMPS)
   	c.	​Time Division Multiple Access (TDMA)
   	d.	​Personal Communications Services (PCS) ’

QUESTION 71

1. A satellite system that has unique properties is the ____ satellite, which is used by governments for spying and by scientific agencies for observing celestial bodies.​

   	a.	​Geosynchronous-Earth-orbit (GEO)
   	b.	​Low-Earth-orbit (LEO)
   	c.	​Highly-elliptical-Earth-orbit (HEO)
   	d.	​Middle-Earth-orbit (MEO)

Answer 1

42) b)  Advanced Mobile Phone Service (AMPS)

71) c)  Highly-elliptical-Earth-orbit (HEO)