Embedded unit-5

Embedded unit-5

University

50 Qs

quiz-placeholder

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Embedded unit-5

Embedded unit-5

Assessment

Quiz

Other

University

Easy

Created by

Sohail 197

Used 11+ times

FREE Resource

50 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary purpose of a data compressor in digital communications?

To encrypt data

To reduce the size of the data

To increase the speed of the processor

To store more data

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which algorithm is commonly used for lossless data compression?

FFT (Fast Fourier Transform)

DCT (Discrete Cosine Transform)

Huffman Coding

RSA Encryption

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

An alarm clock embedded system is most likely to use which of the following to keep time accurately?

A resistor-capacitor (RC) oscillator

A crystal oscillator

A digital counter

A software timer

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In audio players, the DAC stands for:

Digital Audio Controller

Data Access Control

Digital-to-Analog Converter

Direct Audio Coder

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A software modem is also known as a:

Winmodem

Hardmodem

Sysmodem

Softmodem

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The primary sensor used in a digital still camera is a:

A) CCD (Charge-Coupled Device)

B) CMOS (Complementary Metal-Oxide-Semiconductor)

C) PIR (Passive Infrared Sensor)

D) Both A and B

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main advantage of using CMOS sensors over CCD in digital cameras?

Higher power consumption

Better image quality in low light

Lower cost and power consumption

More complex circuitry

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