Communication Principles Quiz

What year was the telegraph invented by Samuel Morse?

• 1837

• 1876

• 1897

• 1962

Which of the following is a type of communication operation that allows data to be sent in both directions but only one at a time?

• Full-Duplex

• Half-Duplex

• Simplex

• Analog

What is the primary function of a transmitter in a communication system?

• To receive signals

• To modify and transmit signals

• To provide a communication channel

• To convert signals to their original form

Which type of cable is known for its high bandwidth and is used in long-distance telephone lines?

• Waveguide

• Fiber Optic Cable

• Coaxial Cable

• Twisted Pair

What is the frequency range of Very Low Frequency (VLF) communication?

• 300-3000 kHz

• 30-300 kHz

• 3-30 kHz

• 3-30 GHz

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

• Error detection and correction

• Continuous signal transmission

• More noise accumulation

• Higher cost

Which of the following describes a full-duplex operation?

• Simultaneous two-way communication

• One-way communication

• No communication

• Two-way communication, one at a time

What is the purpose of modulation in communication systems?

• To increase signal strength

• To reduce noise

• To convert digital signals to analog

• To change properties of the information for transmission

What type of signal is characterized by a continuous range of values?

• Digital

• Baseband

• Analog

• Modulated

Which of the following is NOT a type of noise in communication systems?

• Flicker noise

• Shot noise

• Digital noise

• Thermal noise