MISSISSIPPI (MS) COMMUNICATION SYSTEMS LATEST QUESTIONS AND ACCURATE ANSWERS FOR GUARANTEED RESULTS

Mississippi Communication Systems


1. What is the primary purpose of a communication system?
• A) To generate power
• B) To transmit and receive information
• C) To store data
• D) To amplify signals only ANSWER : B
2. What does AM stand for in radio communications?
• A) Automatic Modulation
• B) Amplitude Modulation
• C) Advanced Messaging
• D) Audio Mixing ANSWER : B
3. What does FM stand for?
• A) Fast Modulation
• B) Frequency Management
• C) Frequency Modulation
• D) Fixed Messaging ANSWER : C
4. What is the speed of electromagnetic waves in free space?
• A) 186,000 miles per second
• B) 100,000 miles per second
• C) 300,000 miles per second
• D) 500,000 miles per second ANSWER : A
5. What is a carrier wave?

, • A) A wave that carries cargo
• B) A high-frequency wave that carries information
• C) A low-frequency signal
• D) A digital signal only ANSWER : B
6. What unit measures frequency?
• A) Watts
• B) Hertz
• C) Volts
• D) Amperes ANSWER : B
7. One kilohertz (kHz) equals how many hertz?
• A) 100 Hz
• B) 1,000 Hz
• C) 10,000 Hz
• D) 100,000 Hz ANSWER : B
8. What is the wavelength formula?
• A) Wavelength = Frequency × Speed
• B) Wavelength = Speed ÷ Frequency
• C) Wavelength = Speed × Time
• D) Wavelength = Frequency ÷ Speed ANSWER : B
9. What is the typical frequency range for VHF?
• A) 30-300 MHz
• B) 3-30 MHz
• C) 300-3000 MHz
• D) 3-30 kHz ANSWER : A
10. What is the typical frequency range for UHF?
• A) 30-300 MHz
• B) 300-3000 MHz

, • C) 3-30 MHz
• D) 3000-30000 MHz ANSWER : B
11. What does UHF stand for?
• A) Universal High Frequency
• B) Ultra High Frequency
• C) Under High Frequency
• D) Uniform High Frequency ANSWER : B
12. What does VHF stand for?
• A) Very High Frequency
• B) Variable High Frequency
• C) Vertical High Frequency
• D) Virtual High Frequency ANSWER : A
13. What is an antenna's primary function?
• A) To store signals
• B) To convert electrical energy to radio waves and vice versa
• C) To amplify power
• D) To filter noise ANSWER : B
14. What is a repeater?
• A) A device that blocks signals
• B) A device that receives and retransmits signals
• C) A type of antenna
• D) A power supply ANSWER : B
15. What is simplex communication?
• A) Two-way simultaneous communication
• B) One-way communication or alternating two-way
• C) Three-way communication
• D) Encrypted communication ANSWER : B

, 16. What is duplex communication?
• A) One-way only
• B) Two-way simultaneous communication
• C) Alternating communication
• D) No communication ANSWER : B
17. What is half-duplex communication?
• A) One-way only
• B) Two-way but not simultaneous
• C) Two-way simultaneous
• D) Three-way communication ANSWER : B
18. What does RF stand for?
• A) Radio Filter
• B) Radio Frequency
• C) Rapid Fire
• D) Remote Function ANSWER : B
19. What is bandwidth?
• A) The width of an antenna
• B) The range of frequencies used by a signal
• C) The power of a transmitter
• D) The height of a tower ANSWER : B
20. What is modulation?
• A) The process of varying a carrier wave
• B) The process of filtering signals
• C) The process of amplifying power
• D) The process of grounding equipment ANSWER : A
21. What is demodulation?
• A) Adding information to a carrier