
TN TTDT
Quiz
•
Physics
•
University
•
Easy
Đỗ Viết Tuấn
Used 82+ times
FREE Resource
100 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1-
GSM là viết tắt của
A -
Global System for Mobile Technology
B -
Global System for Mobile Communications
C -
Global Shared Memory
D -
General System for Mobile Communications
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
3-
Một kênh sóng mang GSM có độ rộng
A -
200 KHz.
B -
45 MHz.
C -
200 MHz.
D -
35 MHz.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
4-
Điều chế trong GSM là
QPSK
64QAM
GMSK
PSK
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kỹ thuật truy nhập trong GSM
A.TDMA
B.FDMA
C.CDMA
D.A và B.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2-
Tần số làm việc của hệ thống GSM là:
A -
800 và 1800 Mhz
B -
800, 900, 1800 và 1900 Mhz
C -
900, 1800, 1900 Mhz
D -
900, 1800 MHz
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
6-
Băng tần sử dụng của P-GSM 900 đường lên là:
A -
890-915 Mhz.
B -
890-960 Mhz
C -
935-960 Mhz.
D -
900-925 Mhz.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
7-
Băng tần sử dụng của P-GSM 900 đường xuống:
A -
890-915 Mhz.
B -
890-960 Mhz
C -
935-960 Mhz.
D -
900-925 Mhz.
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