Information Technology

What does FM stand for in signal transmission?

• Frequency Modulation

• Frequency Measurement

• Frequency Multiplication

• Frequency Management

What is the purpose of encryption in information technology?

• To secure information by converting it into a code.

• To increase the speed of data transmission.

• To make data accessible to everyone.

• To store data in a physical location.

What is pulse modulation?

• A technique where the frequency of a pulse signal is varied to convey information.

• A technique where the amplitude of a pulse signal is varied to convey information.

• A method of encoding data using light pulses.

• A process of converting analog signals into digital signals.

What is the primary use of radio waves?

• To transmit audio and video signals over long distances.

• To generate electricity for household appliances.

• To create heat for cooking food.

• To provide internet connectivity in rural areas.

What does AM stand for in signal transmission?

• Amplitude Modulation

• Amplitude Measurement

• Analog Modulation

• Amplitude Multiplexing

What is the main characteristic of digital data?

• It is represented in binary form (0s and 1s).

• It can be easily seen and touched.

• It is always stored in physical formats.

• It is only used in computers.

What are microwaves used for in technology?

• To transmit data in wireless communication, such as mobile phones and satellite signals.

• To heat food quickly in microwave ovens.

• To power electric vehicles efficiently.

• To enhance the quality of video streaming services.

What is the difference between encoding and encrypting information?

• Encoding secures information to prevent unauthorized access, while encrypting translates information into a code for processing.

• Encoding translates information into a code for processing, while encrypting secures information to prevent unauthorized access.

• Encoding and encrypting are the same processes used for data storage.

• Encoding is used for data compression, while encrypting is used for data transmission.

What is the role of a transmitter in communication?

• To send signals over a distance.

• To receive signals from a distance.

• To amplify signals for better clarity.

• To store signals for future use.

What does it mean to encode information?

• To translate information into a specific form of code.

• To store information in a database.

• To delete unnecessary information.

• To analyze information for patterns.