Midterm Exam 1
Authored by Albert Asmaryan
Computers
4th Grade
Used 9+ times
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32 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Ресурсный блок в LTE, выделяемый на абонента
90 kHz
180 kHz
256 kHz
512 kHz
2.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Канал имеет SNR=7 и полосу пропускания (B=4 kHz). Сохраняя емкость канала, полоса пропускания уменьшается, а SNR...
Уменьшается
Увеличивается
Остается неизменным
3.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Если несущая модулируется потоком, имеющим одну из возможных фаз: 0º, 90º, 180º, 270º
BPSK
QPSK
QAM
4-QAM
4.
MULTIPLE CHOICE QUESTION
45 sec • 5 pts
Амплитуда
Начальная фаза
Частота
Период
5.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
В HSPA+ функции RNC (Radio Network Controller) берет на себя:
NodeB
MSC
MGW
PCRF
6.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
100 mW =
20 dBm
10 dBm
100 dBm
50 dBm
7.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Чем ниже рабочая частота, тем меньше площадь покрытия.
True
False
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