Digital Input Output Online Exam Quiz

Digital Input Output GK Quiz. Question and Answers related to Digital Input Output. MCQ (Multiple Choice Questions with answers about Digital Input Output

Can the analogRead() function be used as a replacement for the digitalRead() function?

Options

A : No, it cannot be used

B : Yes, it can be used but only on certain Arduino Boards

C : Yes, it can be used

D : Yes, it can be used but only for certain pins

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What is the math function to find out the maximum of 2 numbers?

Options

A : The maximumOf() function

B : The maximum_number() function

C : The max() function

D : The m() function

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What is the math function to find out the minimum of 2 numbers?

Options

A : The min() function

B : The minimum_number() function

C : The m() function

D : The minimumOf() function

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What is the maximum number of arguments for the constrain() function?

Options

A : 1

B : 2

C : 3

D : 4

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What is the maximum number of arguments for the map() function?

Options

A : 1

B : 3

C : 5

D : 7

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What is the need for a quantizer in Digital Communications?

Options

A : Break up a sampled signal to a finite dataset

B : Sample a pure analog signal

C : Sample a digital signal

D : Encode an analog signal

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What is the numeric base of the math operations performed in binary?

Options

A : 1

B : 2

C : 3

D : 4

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What is the purpose of the pow(x,y) function?

Options

A : To find xy

B : To find yx

C : To find ex

D : To find 10y

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Which of the following is not a Digital Encoding Technique?

Options

A : NRZ (Non-Return to Zero)

B : Amplitude Modulation

C : Manchester

D : RZ (Return to Zero)

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Which of the following is not a method to convert analog signals to digital signals?

Options

A : Pulse Code Modulation

B : Pulse Amplitude Modulation

C : Pulse Width Modulation

D : Frequency Modulation

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