1. What is wireless communication?
- A) Communication that requires physical cables
- B) Communication using radio waves or infrared signals
- C) Communication using satellites exclusively
- D) None of the above
Answer: B) Communication using radio waves or infrared signals
2. Which technology is commonly used in short-range wireless communication?
- A) Wi-Fi
- B) Bluetooth
- C) Satellite
- D) Fiber optics
Answer: B) Bluetooth
3. What does the term “frequency band” refer to in wireless communication?
- A) The speed of data transfer
- B) The range of frequencies used for communication
- C) The distance covered by the signal
- D) The type of antenna used
Answer: B) The range of frequencies used for communication
4. Which of the following is an example of a wireless technology?
- A) Ethernet
- B) Coaxial cable
- C) Wi-Fi
- D) USB
Answer: C) Wi-Fi
5. What is the primary limitation of wireless communication?
- A) High cost
- B) Limited mobility
- C) Susceptibility to interference
- D) Complex installation
Answer: C) Susceptibility to interference
6. What does GSM stand for in mobile communication?
- A) Global System for Mobile Communications
- B) General Signal Modulation
- C) General Satellite Mechanism
- D) Global Signal Mechanism
Answer: A) Global System for Mobile Communications
7. Which of the following is used for long-distance wireless communication?
- A) Infrared
- B) Microwave
- C) Bluetooth
- D) Fiber optics
Answer: B) Microwave
8. Which wireless technology is designed for high-speed Internet access?
- A) Zigbee
- B) WiMAX
- C) RFID
- D) Infrared
Answer: B) WiMAX
9. What is the function of a base station in wireless communication?
- A) Amplifies signal strength
- B) Converts analog signals to digital signals
- C) Facilitates communication between mobile devices and the network
- D) Filters interference in the signal
Answer: C) Facilitates communication between mobile devices and the network
10. Which frequency spectrum is typically used for Wi-Fi networks?
- A) 1 GHz
- B) 2.4 GHz and 5 GHz
- C) 700 MHz
- D) 10 GHz
Answer: B) 2.4 GHz and 5 GHz
11. What is the key feature of 4G wireless technology?
- A) Low data rates
- B) High-speed Internet and multimedia access
- C) Support for voice-only communication
- D) Limited mobility
Answer: B) High-speed Internet and multimedia access
12. What does LTE stand for in wireless communication?
- A) Long-Term Evolution
- B) Local Transmission Exchange
- C) Large Technology Expansion
- D) Low Transmission Efficiency
Answer: A) Long-Term Evolution
13. What type of wireless communication is used in NFC (Near Field Communication)?
- A) Long-range communication
- B) High-frequency short-range communication
- C) Satellite-based communication
- D) Infrared
Answer: B) High-frequency short-range communication
14. Which of the following is a characteristic of 5G technology?
- A) High latency
- B) Narrowband communication
- C) Ultra-reliable low-latency communication (URLLC)
- D) Limited device connectivity
Answer: C) Ultra-reliable low-latency communication (URLLC)
15. Which wireless communication method requires line-of-sight?
- A) Microwave
- B) Bluetooth
- C) Wi-Fi
- D) Radio waves
Answer: A) Microwave