5. Data Representation

Question 1

which set of numbers best describes the following? -2,-1,0,1,2

Answer 1

Integers

Question 2

Which symbol is given to a set of integers?

Answer 2

Z

Question 3

What set of numbers does R represent?

Answer 3

Real

Question 4

Is -8 an integer?

Answer 4

yes, negatives can be integers

Question 5

What set of numbers can be used for counting?

Answer 5

Natural numbers

Question 6

To which set does pi belong to?

Answer 6

Irrational numbers

Question 7

Which set of numbers contains all real world quantities?

Answer 7

Real numbers

Question 8

Which number base is used by humans for counting?

Answer 8

Base 10 / denary / decimal

Question 9

Which number base is denoted with 16?

Answer 9

hexadecimal

Question 10

Hexadecimal equivalent of E?

Answer 10

14

Question 11

Which numberbase acts as a shorthand representation for binary?

Answer 11

Hexadecimal

Question 12

What is the decimal equivalent of 0101?

Answer 12

5

Question 13

What is the binary equivalent of A3

Answer 13

10100011

Question 14

How many bits are there in kilobyte?

Answer 14

8 x 1000 = 8000

Question 15

How many GB in a TB?

Answer 15

10^12 - 10^9 = 1000

Question 16

Describe what is meant by a bit?

Answer 16

fundamental unit of information which can only take 2 values 1, 0.

Question 17

How many bits are there in a byte?

Answer 17

8 bits

Question 18

How many nibbles are there in a byte?

Answer 18

2 nibbles

Question 19

How many different values can be represented with 4 bits?

Answer 19

16

Question 20

How many bits are there in a mebibit?

Answer 20

2^20

Question 21

What type of binary represents negative numbers?

Answer 21

signed

Question 22

What is the range of decimal numbers that can be represented using unsigned binary with 4 bits?

Answer 22

0 to 15
= 0 to 2^4 - 1

Question 23

How many unique bit patterns can be made with 8 bits?

Answer 23

2^8 = 256