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CS101 MCQ’s and Quiz Preparation Module 21
Dear Students, here you
prepare Quiz and MCQ of CS101 Module 21 covers core computer science topics,
providing a solid foundation for comprehending the dynamic discipline. Multiple
Choice Questions (MCQs) in this module are an important assessment technique for
determining your understanding of basic concepts. Let’s look at the major
concept of Module 21 and how to properly prepare for the MCQs. If you prepare
all this Quiz and MCQ, then you Get Full Marks. If You have problem then
contact us.
یہاں پر چار آپشن ماجود ہیں۔ آپ کو جو کوریکٹ لگتا ہے اس پر کلک کریں۔ اگر آپ کا جواب صحیح ہوا تو آپشن سبز ہو جائے گا اگر غلط ہوا تو سرخ ہو جائے گا اور صحیح جواب خود سبز ہو جائے گا۔
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Question 1: What is sound amplitude?
A) The speed of sound waves
B) The frequency of sound waves
C) The extent to which air particles are displaced
D) The direction of sound waves
Explanation: Sound amplitude refers to the extent of displacement of air particles caused by a sound wave. It determines the loudness of the sound.
Question 2: How is sound encoded for transmission?
A) By sampling the frequency of sound
B) By sampling the amplitude of sound
C) By converting sound to digital signals
D) By converting sound to analog signals
Explanation: Sound is encoded by sampling its amplitude at regular intervals. These samples are then transmitted over the network for reproduction.
Question 3: How many samples per second are used for long-distance telephone communication?
A) 8,000 samples per second
B) 44,100 samples per second
C) 32 bits per second
D) 16 bits per second
Explanation: Long-distance telephone communication uses 8,000 samples per second to record sound amplitude values.
Question 4: Why is 8,000 samples per second not enough for high-fidelity music recordings?
A) It produces low-quality sound
B) It cannot capture high-frequency sounds
C) It lacks sufficient amplitude resolution
D) It results in distorted sound
Explanation: 8,000 samples per second do not provide enough resolution to accurately capture the nuances of high-fidelity music recordings.
Question 5: How many samples per second are recorded in today’s CDs?
A) 8,000 samples per second
B) 44,100 samples per second
C) 32 bits per second
D) 16 bits per second
Explanation: Today’s CDs record sound at a rate of 44,100 samples per second for higher quality audio.
Question 6: How is sound data transmitted over a network?
A) As analog signals
B) As digital signals
C) As frequency waves
D) As amplitude values
Explanation: Sound data is converted into digital signals before transmission over a network.
Question 7: What is the purpose of MIDI in sound encoding?
A) To store music
B) To transmit analog signals
C) To encode directions for producing music
D) To record sound amplitude
Explanation: MIDI encodes instructions for producing music rather than storing the music itself.
Question 8: How much sound can be stored in 3 bytes using MIDI?
A) 1 second
B) 2 seconds
C) 3 seconds
D) 4 seconds
Explanation: MIDI can store 2 seconds of sound in 3 bytes, making it a compact format for music synthesis.
Question 9: What does MIDI encode?
A) Sound amplitude
B) Sound frequency
C) Directions for producing music
D) Digital sound signals
Explanation: MIDI encodes directions for producing music, allowing for playback on MIDI-compatible devices.
Question 10: How do MIDI recordings differ when played on different synthesizers?
A) They sound identical
B) They can sound significantly different
C) They only differ in volume
D) They only differ in pitch
Explanation: MIDI recordings can sound significantly different when played on different synthesizers due to variations in how each synthesizer interprets the encoded directions.
Question 11: What is the alternative method for storing sound other than PCM?
A) WAV
B) AIFF
C) MIDI
D) MP3
Explanation: MIDI is an alternative method that encodes instructions for producing music, rather than storing the sound itself like PCM methods.
Question 12: What does MIDI stand for?
A) Musical Instrument Digital Interface
B) Musical Instrument Data Interface
C) Musical Instrument Digital Integration
D) Musical Instrument Data Integration
Explanation: MIDI stands for Musical Instrument Digital Interface, which is a protocol for communicating musical information between devices.
Question 13: How does MIDI store music?
A) As digital audio signals
B) As analog audio signals
C) As a sequence of musical instructions
D) As sheet music notation
Explanation: MIDI stores music as a sequence of musical instructions that can be interpreted by MIDI-compatible devices to produce sound.
Question 14: What type of sound data is stored in MIDI files?
A) Digital audio signals
B) Analog audio signals
C) Musical notes and instructions
D) Sound waveforms
Explanation: MIDI files store musical notes and instructions rather than actual sound waveforms, allowing for playback on MIDI-compatible devices.
Question 15: How does MIDI compare to PCM in terms of file size?
A) MIDI files are larger than PCM files
B) MIDI files are smaller than PCM files
C) MIDI files are much smaller than PCM files
D) MIDI files are the same size as PCM files
Explanation: MIDI files are much smaller than PCM files because they store musical instructions rather than raw audio data.
Report Card
Total Questions Attempted: 0
Correct Answers: 0
Wrong Answers: 0
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Conclusion:
CS101 Module 21 MCQs are designed to
evaluate your understanding of fundamental computer science concepts. By
focusing on understanding the main theme of Module 21 and adopting effective
study strategies, you can prepare yourself to excel in these MCQs and build a
strong foundation for your future studies in computer science.
