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Questions and Answers
What is the process of converting a digital signal into an analog signal called?
What is the process of converting a digital signal into an analog signal called?
In digital communication, what term describes a method of reducing the bandwidth required for transmitting a signal?
In digital communication, what term describes a method of reducing the bandwidth required for transmitting a signal?
Which of the following best describes the difference between lossless and lossy compression?
Which of the following best describes the difference between lossless and lossy compression?
What does the baud rate represent in data communication?
What does the baud rate represent in data communication?
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Which of the following is a common characteristic of packet-switched networks?
Which of the following is a common characteristic of packet-switched networks?
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Study Notes
Digital to Analog Conversion
- Digital-to-analog conversion (DAC) is the process of transforming a digital signal into an analog signal.
Bandwidth Reduction in Digital Communication
- Bandwidth reduction in digital communication refers to techniques that minimize the bandwidth needed to transmit a signal without compromising data quality.
Lossless vs. Lossy Compression
- Lossless compression algorithms preserve all the original data in a file. No information is lost during compression or decompression. Files can be perfectly reconstructed.
- Lossy compression algorithms discard some of the original data during compression, making the file smaller. Decompressed files are not identical to the originals.
Baud Rate in Data Communication
- Baud rate represents the number of signal changes (symbol transitions) per second in a communication channel. It indicates the maximum speed at which data can be transmitted over the channel.
Packet-Switched Networks
- Packet-switched networks divide data into packets (small units) and transmit them independently over the network.
- They offer flexibility, dynamic resource allocation, and efficient use of bandwidth.
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Description
Test your knowledge on digital communication concepts with this quiz. Explore topics like signal conversion, bandwidth reduction, compression types, baud rates, and packet-switched networks. Perfect for students studying digital communications.
