1. What is a telecommunication system?
- A) A system that stores data locally
- B) A system that transmits information over distances
- C) A system for data encryption
- D) A system used for gaming
Answer: B) A system that transmits information over distances
2. Which of the following is NOT a component of a telecommunication system?
- A) Transmitter
- B) Receiver
- C) Communication channel
- D) Printer
Answer: D) Printer
3. What is the role of a communication channel in a telecommunication system?
- A) Amplifies the signal
- B) Transmits data between transmitter and receiver
- C) Encrypts the message
- D) Decodes the received signal
Answer: B) Transmits data between transmitter and receiver
4. Which of the following is an example of a digital telecommunication system?
- A) Telegraph
- B) Telephone
- C) Internet
- D) Radio broadcasting
Answer: C) Internet
5. What does PSTN stand for?
- A) Public Signal Transmission Network
- B) Public Switched Telephone Network
- C) Private Signal Transfer Network
- D) Public Standard Telephone Network
Answer: B) Public Switched Telephone Network
6. Which type of signal is used in analog telecommunication systems?
- A) Digital signals
- B) Binary signals
- C) Continuous signals
- D) Encoded signals
Answer: C) Continuous signals
7. What does modulation achieve in telecommunication systems?
- A) Increases the size of the signal
- B) Decreases the signal bandwidth
- C) Allows transmission of the signal over long distances
- D) Eliminates interference
Answer: C) Allows transmission of the signal over long distances
8. Which technology is used in telecommunication for data compression?
- A) Modulation
- B) Multiplexing
- C) Encoding
- D) Codec
Answer: D) Codec
9. What does the term “bandwidth” refer to in telecommunication systems?
- A) The speed of the signal
- B) The capacity of the communication channel
- C) The strength of the transmitted signal
- D) The size of the transmitted data
Answer: B) The capacity of the communication channel
10. What is the function of a repeater in telecommunication systems?
- A) Converts analog signals to digital
- B) Amplifies and retransmits signals to cover longer distances
- C) Encodes the signal for transmission
- D) Decodes the received signal
Answer: B) Amplifies and retransmits signals to cover longer distances
11. What is the difference between simplex and duplex communication?
- A) Simplex allows two-way communication, while duplex allows one-way communication
- B) Simplex uses only one channel, while duplex uses multiple channels
- C) Simplex allows one-way communication, while duplex allows two-way communication
- D) Simplex is faster than duplex
Answer: C) Simplex allows one-way communication, while duplex allows two-way communication
12. What is the primary function of a modem in telecommunication systems?
- A) Encode data for transmission
- B) Convert digital signals to analog and vice versa
- C) Store data for future use
- D) Establish a wireless connection
Answer: B) Convert digital signals to analog and vice versa
13. Which type of multiplexing combines signals for transmission?
- A) Modulation
- B) Frequency Division Multiplexing (FDM)
- C) Encoding
- D) Attenuation
Answer: B) Frequency Division Multiplexing (FDM)
14. Which protocol is widely used for voice communication over telecommunication systems?
- A) FTP
- B) SMTP
- C) VoIP
- D) SNMP
Answer: C) VoIP
15. What does the term “latency” refer to in telecommunications?
- A) The delay in transmitting data
- B) The speed of the signal
- C) The strength of the signal
- D) The frequency of the signal
Answer: A) The delay in transmitting data
