Unit 2-Digital Information Quiz Review

What is digital information in the context of modern technology?

• Information stored using analog signals

• Information represented using continuous number systems

• Information encoded using discrete symbols

• Information transmitted through electromagnetic waves

How does binary representation relate to computer systems?

• It enables computers to process information using analog principles

• It allows computers to store information in continuous ranges

• It simplifies data processing by using a set of 16 symbols: 0 – 9 and A – F

• It forms the basis for digital encoding and manipulation in computers

Which of the following binary numbers is equivalent to the decimal number 18?

• 10010

• 10100

• 11000

• 10001

Arrange the following binary numbers in order from smallest to largest: I. 1100 1010 II. 0101 0111 III. 1000 1101

• II, III, I

• II, I, III

• III, II, I

• I, III, II

What is an overflow error in numeric representations?

• It occurs when a program has too many syntax errors.

• It happens when a program's runtime exceeds a certain limit.

• It's a logic error that causes incorrect results due to a wrong algorithm.

• It occurs when a calculation results in a value that's too large to be stored within a given data type.

Why do we use hexadecimal representations for digital data in computing?

• Hexadecimal is the most efficient representation for all types of data.

• Hexadecimal is the native format used by modern computer hardware.

• Hexadecimal provides a compact way to represent large binary values.

• Hexadecimal ensures compatibility with non-digital devices.

Which of the following hexadecimal numbers is equivalent to the decimal number 248?

• F8

• 1F8

• E8

• 128

Which of the following decimal numbers is equivalent to the hexadecimal number 1F?

• 31

• 30

• 28

• 32

Place the following numbers in order from largest to smallest: I. Hexadecimal: 1A3 II. Binary: 110110 III. Decimal: 275

• III, I, II

• II, I, III

• II, III, I

• I, III, II

What is Binary?

• a way of representing information using only two options, 1 and Zero

• 8 bits

• data that changes discretely through a finite set of possible values

• a process for reducing the number of bits needed to represent something without losing any information