Wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

ECS Quiz 1 Review: Digital Information

Total questions: 58

Worksheet time: 1hrs 3mins

Name
Class
Date
1.

What is the main advantage of using binary numbers in computers?

a)

They are easier for humans to read

b)

They require less memory

c)

They match the on/off states of electronic circuits

d)

They allow for faster internet speeds

2.

Which of the following best describes the purpose of data compression?

a)

To increase the quality of data

b)

To reduce the amount of storage space required

c)

To make data more secure

d)

To convert data into binary

3.

If you want to store the decimal number 255 in binary, how many bits are required at minimum?

a)

7 bits

b)

8 bits

c)

9 bits

d)

10 bits

4.
What is an Algorithm?
a)
A chart showing the flow of a series of events
b)
Step-by-step instructions used to solve a problem
c)
A decision arrived at by following instructions
d)
A computer program that follows a chart
5.
What algorithm do we use when we're making a cake?
a)
A set of directions
b)
A recipe
c)
A list of instructions
6.

The steps of an algorithm can be followed in any order to produce the same result.

a)

True

b)

False

7.

Which of these is NOT an algorithm?

a)

Following recipe instructions

b)

Working out how an engine works

c)

Tying your shoelaces

d)

Making a cup of coffee

8.
Which type of lists or data sets are linear searching algorithms used for?
a)
Unsorted lists or data sets
b)
Sorted lists or data sets
9.
Which type of lists or data sets are binary searching algorithms used for?
a)
Unsorted lists or data sets
b)
Sorted lists or data sets
10.
Select the best description to explain what a linear search algorithm is.
a)
Put the elements in order, check each item in turn.
b)
Put the elements in order, compare with the middle value, split the list in order and repeat.
c)
Elements do not need to be in order, check each item in turn.
d)
Elements do not need to be in order, compare to the middle value, split the list in order and repeat
11.

Select the best description to explain what a binary search algorithm is.

a)

Put the elements in order, check each item in turn.

b)

Put the elements in order, compare with the middle value, split the list in order and repeat.

c)

Elements do not need to be in order, check each item in turn.

d)

Elements do not need to be in order, compare to the middle value, split the list in order and repeat

12.
A linear search is to be performed on the list:
12   6   8  1  3
How many comparisons would it take to find number 1?
a)
1
b)
2
c)
3
d)
4
13.
A binary search is to be performed on the list:
3  5  9  10  23
How many comparisons would it take to find number 9?
a)
0-1
b)
2-3
c)
4-5
d)
I can't find the number 9
14.
A binary search is to be performed on the list:
1  5  10  13  48  68  100  101
How many comparisons would it take to find number 101?
a)
0-1
b)
1-2
c)
3-4
d)
4-5
15.
Describe an advantage of a linear search algorithm
a)
Data does not need to be in order.
b)
Performs well over large ordered lists.
c)
Can only work on an ordered list.  If unordered must use a linear search.
d)
Slow with large data sets.
16.

Which of these are search algorithms?

a)

Bubble

b)

Merge

c)

Linear

d)

Binary

e)

Caesar

17.

Which of these algorithms searches for something by first looking in the middle of a list?

a)

Bubble sort

b)

Merge sort

c)

Linear search

d)

Binary search

18.

Which of these algorithms eliminates half of its possibilities each time it makes a check?

a)

Binary search

b)

Bubble sort

c)

Merge sort

d)

Linear search

19.

An array with 32 elements is input to a binary search algorithm. How many maximum number of comparisons are performed?​

a)

32

b)

16

c)

8

d)

5

20.

An array with 32 elements is input to a linear search algorithm. How many maximum number of comparisons are performed?​

a)

32

b)

16

c)

8

d)

5

21.

What is bubble sort?

a)

Bubble sort is a complex sorting algorithm.

b)

Bubble sort is a simple sorting algorithm.

c)

Bubble sort is used for searching data.

d)

Bubble sort is an encryption algorithm.

22.

How does bubble sort work?

a)

Bubble sort compares adjacent elements and swaps them if they are in the wrong order.

b)

Bubble sort compares elements in groups and swaps them if they are in the wrong order.

c)

Bubble sort compares elements in reverse order and swaps them if they are in the wrong order.

d)

Bubble sort compares elements randomly and swaps them if they are in the wrong order.

23.

Refers to the compression when some of the data from the original file is lost

a)

lossless

b)

300 dpi

c)

lossy

d)

cmyk

24.

Which is a pro of your file being lossy

a)

quality is loss

b)

reduce download time

c)

lower quality

d)

can't get original back

25.

Which is a pro of your file being lossy

a)

quality loss

b)

cant' get original back

c)

reduced file size

d)

lower quality

26.

Which is a con of your file being lossy

a)

reduced file size

b)

reduced download size

c)

quality loss

d)

easy uploading

27.

Which is a con of your file being lossy

a)

easy uploading

b)

reduced file size

c)

reduced downloading

d)

can't get original back

28.

Lossy =

a)

not losing

b)

getting all quality of an image

c)

loses some quality

d)

keeps all image quality

29.

Refers to compression when the image is reduced without any quality loss

a)

Lossy

b)

RGB

c)

72 PPI

d)

Lossless

30.

Which is a pro of Lossless

a)

larger files vs. lossy files

b)

low low low quality

c)

its become pixelated

d)

No loss of quality when compressed

31.

Which is a con of Lossless

a)

no loss of quality

b)

Large files even after compressed vs. Lossy files after compressed

c)

keeps all quality

d)

Perfect for photos

32.

Lossless =

a)

all the quality is loss

b)

you loss it all

c)

No quality is loss

d)

you lose your mind

33.

What is the decimal value of the binary number 00011001?

a)

17

b)

25

c)

27

d)

19

34.

Which of these binary numbers is the largest?

a)

1101 (13)

b)

1110 (14)

35.

What is the binary representation of the decimal number 43?

a)

00101011

b)

00101100

c)

00101101

d)

00101110

36.

What is the binary representation of the decimal number 55?

a)

00110110

b)

00110111

c)

00111000

d)

00111001

37.

Which number system is the foundation of all modern computing systems?

a)

Base 2

b)

Base 16

c)

Base 10

d)

Base 12

38.

How many bytes long is the following sequence of bits?

101111111101000111111101

a)

12

b)

3

c)

4

d)

24

39.

Which of the following is a single byte of digital information?

Each choice is expressed in binary.

a)

1101010

b)

101011010111

c)

0

d)

10101101

40.
Upper and lower case letters have a different ASCII code.
a)
True
b)
False
41.
Which of the following activities is not considered an input (choose 2)?
a)
Typing
b)
Scanning
c)
Watching a Youtube Video
d)
Recording a lecture
e)
Listening to your Favorite Music
42.
Saving your term paper is an example of which stage of the computing process?
a)
Output
b)
Processing
c)
Input
d)
Storage
43.
A server farm crunching away rendering the CGI for latest Marvel movie is an example of what?
a)
Input
b)
Storage
c)
Output
d)
Processing
44.
Changes made toa file are located where until they are saved?
a)
CPU
b)
Storage
c)
RAM
d)
GPU
45.
Sound cards participate in which phase of the computing process?
a)
Output
b)

Input and Output

c)
Storage
d)
Processing
46.
While you are downloading your vacation pictures from your phone to your computer, your phone is acting as what type of device?
a)
Output
b)
Input
c)
Processing
d)
Storage
47.
Printing your term paper is an example of which stage of the computing process?
a)
Input
b)
Processing
c)
Output
d)
Storage
48.
Scanning an old photo into your computer so you can post it to social media is an example of which phase of the computing process?
a)
Input
b)
Processing
c)
Output
d)
Storage
49.
When a cashier scans the barcode on the new shirt you are buying, what part of the computing process is occuring?
a)
Input
b)
Output
c)
Processing
d)
Storage
50.

Name this component

a)

Central Processing Unit

b)

Power Supply Unit

c)

Video Card

d)

Computer Case

51.

What computer part is this?

a)

Motherboard

b)

Central Processing Unit

c)

Power Supply Unit

d)

Video Card

52.

This component is described as the Brain of the Computer.

a)

Motherboard

b)

Central Processing Unit

c)

Power Supply Unit

d)

Video Card

53.

Which computer component is used for storage?

a)

Motherboard

b)

Central Processing Unit

c)

Power Supply Unit

d)

Hard Disk Drives/Solid State Drives

54.

What Computer Component is this?

a)

Motherboard

b)

Central Processing Unit

c)

Power Supply Unit

d)

Random Access Memory

55.

What is a pixel?

a)

A grid of several colors in a digital image

b)

Another name for a digital image

c)

A single tiny dot, or square, of color in a digital image.

d)

A small picture

56.

What are the 3 color channels that make up a pixel according to the RGB color scheme?

a)

Red, Green, and Blue

b)

Red, Blue, and Yellow

c)

White, Black, and Gray

d)

Cyan, Magenta, and Yellow

57.

Digital images in computers are made of ___________.

a)

Tiny drops of color

b)

Colored squares

c)

Black and White Squares

d)

Pixels (bits)

58.

How many BITS are in a BYTE?

a)

8

b)

4

c)

256

d)

1,024

Similar Resources on Wayground

Excel Review

62 questions

Excel Review

quiz

Worksheet

•

9th - 12th Grade

UNIT 4 TEST OS, Hardware and Software Systems

60 questions

UNIT 4 TEST OS, Hardware and Software Systems

quiz

Worksheet

•

5th - 9th Grade

Microsoft Word/Powerpoint M1:L1-6

60 questions

Microsoft Word/Powerpoint M1:L1-6

quiz

Worksheet

•

9th - 12th Grade

Output devices and their uses

60 questions

Output devices and their uses

quiz

Worksheet

•

9th - 11th Grade

The Internet - AP CSP Unit 4

53 questions

The Internet - AP CSP Unit 4

quiz

Worksheet

•

9th - 12th Grade

Intro To Networking 123

53 questions

Intro To Networking 123

quiz

Worksheet

•

9th - 12th Grade

SIMULASI UJIAN INFORMATIKA KELAS 9

60 questions

SIMULASI UJIAN INFORMATIKA KELAS 9

quiz

Worksheet

•

9th Grade - University

Module 1 Review

53 questions

Module 1 Review

quiz

Worksheet

•

8th Grade - University