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Telecommunication Quiz

Total questions: 20

Worksheet time: 23mins

Name
Class
Date
1.

What does 1G refer to in mobile telecommunication?

a)

First generation of mobile telecommunication

b)

Second generation of mobile telecommunication

c)

Third generation of mobile telecommunication

d)

Fourth generation of mobile telecommunication

2.

Which modulation technique changes the amplitude of the carrier signal?

a)

Amplitude Modulation

b)

Digital Modulation

c)

Phase Modulation

d)

Frequency Modulation

3.

What is the frequency range of Extremely Low Frequency (ELF)?

a)

3–30 kHz

b)

3–30 Hz

c)

30–300 Hz

d)

300–3000 Hz

4.

What is the main purpose of modulation in telecommunications?

a)

To increase the signal strength

b)

To minimize interference

c)

To reduce the bandwidth

d)

To change the signal type

5.

Which of the following is a characteristic of 2G technology?

a)

Digital cellular communication

b)

Voice over IP

c)

High-speed data transfer

d)

Analog cellular communication

6.

What does SNR stand for in telecommunications?

a)

Signal to Network Ratio

b)

System to Network Ratio

c)

Signal to Noise Ratio

d)

System to Noise Ratio

7.

Which frequency band is used for FM radio?

a)

30–300 kHz

b)

3–30 MHz

c)

3–30 kHz

d)

300–3000 kHz

8.

What is the main advantage of digital communication over analog communication?

a)

Higher quality

b)

Easier to understand

c)

Lower cost

d)

More complex

9.

What does the term 'bandwidth' refer to?

a)

The type of modulation used

b)

The distance the signal can travel

c)

The strength of the signal

d)

The amount of data that can be transmitted

10.

Which of the following is a type of noise in telecommunications?

a)

Signal noise

b)

Carrier noise

c)

Digital noise

d)

Thermal noise

11.

What is the purpose of a transceiver in a communication system?

a)

To filter signals

b)

To convert signals

c)

To amplify signals

d)

To transmit and receive signals

12.

Which technology is associated with 4G networks?

a)

CDMA

b)

LTE

c)

AMPS

d)

GSM

13.

What does BER stand for in digital communication?

a)

Binary Error Rate

b)

Base Error Rate

c)

Bandwidth Error Rate

d)

Bit Error Rate

14.

Which of the following is a characteristic of a star network topology?

a)

Nodes are connected in a circular manner

b)

No central connection point

c)

All nodes are connected to a central hub

d)

Nodes are connected in a linear fashion

15.

4 dBW = .......dBm

a)
10 dBm
b)
20 dBm
c)
30 dBm
d)
34 dBm
16.

Gambar dan jelaskan Blok diagram sistem transmisi !

4 lines
17.

Berapakah nilai SNR pada blok B dan D?

4 lines
18.

Sinyal suara (0-4000 Hz) dimodulasi FM dengan

frekuensi carrier 200 KHz. Jika hasil modulasi FM memberi

simpangan frekuensi terjauh sebesar 100 Hz , tentukan

bandwidth sinyal hasil modulasi x(t)

4 lines
19.

Sebutkan dan jelaskan modulasi analog !

4 lines
20.

Apa yang dimaksud dengan Superheterodyne ?

4 lines