1. One of the following is a characteristic of mobile telephone system?
(A) Radio Link
(B) Microwave link
(C) Tetherless link
(D) None
2. In a mobile phone system, the radio link performs the function of in a fixed network?
(A) None
(B) Transmission
(C) Multiplexing
(D) Local Loop
3. Heart of the mobile system is?
(A) Allocate frequencies
(B) All are Correct
(C) Mobility
(D) Access mechanism
4. In microwave range, radio waves follow?
(A) Both A & B
(B) Ground propagation
(C) Line of sight propagation
(D) None
5. There is no radiation at?
(A) Right angles to antenna length
(B) Around the antenna
(C) At the two ends of antenna
(D) None
6. Radio waves travel in the air like?
(A) Water waves
(B) EM waves
(C) Light waves
(D) None
7. Shape of electromagnetic signal is?
(A) Saw tooth wave
(B) Square wave
(C) Sine wave
(D) Pulse wave
8. Modulation techniques used in GSM is?
(A) FM
(B) AM
(C) FSK
(D) PAM
9. Which modulation technique is used in 3G system?
(A) PM
(B) AM
(C) CFM
(D) DPAM
10. Each cell of cellular network consists of?
(A) Radio Mast
(B) Transmitting/Receiving Radio Equipment
(C) All of these
(D) Local Control System