1. The ____________________ coordinates the activities of the base transceiver and
connects calls to the public switched telephone network.
a. headend
b. cell site
c. MTSO
2. In a GSM system the ____________________ or smartcard is used to store the
subscriber information number, the system the user is authorized to use as well as
encryption keys and other important data.
a. PTN
b. SIM
c. PIN
3. ________________ LEOs operate at frequencies above 1 GHz and provide data
transmission rates of up to a few megabits per second.
a. little
b. small
c. big
4. _________________LEOs operate at frequencies below 1 GHz and support data rates
up to 10 kbps.
a. little
b. helical
c. big
5. _________________ is the proposed global satellite network that would provide
worldwide wireless services (fax, paging, voice, data) using little LEOs.
a. RAM Mobile
b. LEOSAT
c. Iridium
6. _________________ is the term used to describe third generation digital wireless
communication services which will use CDMA or TDMA to provide efficient use of
spectrum resources.
a. FLPMTS
b. ERMES
c. PCS/PCN