Deck 11: Digital and Analog Telecommunications Standards

Question 1

What is the time duration of a bit if data is transmitted at 270.833 kbps in the channel?

A)270.833 s
B)3 ?s
C)3.692 ?s
D)3.692 s

Answer 1

3.692 ?s

Question 2

US digital cellular system based on CDMA was standardized as_________      

A)is-54
B)is-136
C)is-95
D)is-76

Answer 2

is-95

Question 3

IS-95 was not compatible with existing AMPS frequency band.

Answer 3

False

Question 4

Which of the following is used by IS-95?

A)dsss
B)fhss
C)thss
D)hybrid

Question 5

IS-95 uses same modulation technique for forward and reverse channel.

Question 6

IS-95 is specified for reverse link operation in_________        band.

A)869-894 mhz
B)849-894 mhz
C)849-869 mhz
D)824-849 mhz

Question 7

User data in IS-95 is spread to a channel chip rate of_________      

A)1.2288 mchip/s
B)9.6 mchip/s
C)12.288 mchip/s
D)0.96 mchip/s

Question 8

__________     are used to resolve and combine multipath components.

A)equalizer
B)registers
C)rake receiver
D)frequency divider

Question 9

CT2 was the first generation of cordless telephones.

Question 10

CT2 is analog version of first generation cordless telephones.