Name: 
 

chapter 22



True/False
Indicate whether the sentence or statement is true or false.
 

1. 

One reason for developing PCS was that the 800-MHz band was too crowded.
 

2. 

PCS cells are typically smaller than AMPS cells.
 

3. 

GSM security is not as good as it is in IS-136.
 

Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
 

4. 

Current PCS systems are referred to as:
a.
first-generation
c.
third-generation
b.
second-generation
d.
digital-generation
 

5. 

The "forward" PCS channel is:
a.
from the base to the mobile
c.
from mobile to mobile
b.
from the mobile to the base
d.
same as the uplink
 

6. 

The number of competing PCS systems in North America is:
a.
2
c.
4
b.
3
d.
many
 

7. 

In GSM, voice channels are called:
a.
traffic channels
c.
bearer channels
b.
voice channels
d.
talking channels
 

8. 

It is necessary to send control information on traffic channels in:
a.
no PCS system
c.
TDMA only
b.
GSM only
d.
both GSM and TDMA
 

9. 

IMSI stands for:
a.
Integrated Mobile Subscriber Identification
b.
International Mobile Subscriber Identification
c.
Interim Mobile Subscriber Identification
d.
Intermodulation System Interference
 

10. 

IS-136 uses:
a.
frequency hopping
c.
CDMA
b.
TDMA
d.
all of the above
 



 
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