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WorksheetsYear 9 Computer Science Revision
Total questions: 65
Worksheet time: 40mins
Which one of the following terms refer to the most popular LAN technology
Ethernet
WAN
Internet
Intranet
Looking at the value of each column
what is this binary number worth ?
2
4
6
8
To make the turtle move forward, which command is used?
turtle.penup()
turtle.forward()
turtle.left()
turtle.backward()
JPEG, GIF & PNG are typical file formats for what type of graphic?
Bitmap
Vector
A bitmap image is made up of
Pixels
Colours
Sounds
Samples
To make the turtle move forward, which command is used?
turtle.penup()
turtle.forward()
turtle.left()
turtle.backward()
When creating a rectangle with the turtle, what angle is needed when turning?
120
180
45
90
In order to move the turtle 120 forward without drawing on the screen, which order is correct?
turtle.forward(120)
turtle.penup()
turtle.pendown()
turtle.pendown()
turtle.forward(120)
turtle.penup()
turtle.penup()
turtle.forward(120)
turtle.pendown()
To fill a shape with the colour red, which command is correct?
turtle.fillcolor('Red')
turtle.fillcolour('Red')
turtle.fillcolor("Red")
turtle.fillcolour("Red")
What is the extension on a Python file name?
.py
.xsl
.ppt
.docx
What happens if you call your python progam "turtle"
your program crashes because you have spelt it wrong
your program crashes because it stops the import turtle line from working
your program crashes because it should have been saved as turtle.turtle
your program runs fine
Which of these commands would successfully create a turtle named Alice
Alice = turtle.pen()
Alice = Turtle.pen()
Alice = Turtle.Pen()
Alice = turtle.Pen()
How do you tell python you want to use the turtle library
turtle import
import turtle
from libraries import turtle
from turtle import libraries
What is the keyword needed to repeat code (iterate) in Python?
for
if
input
What does turn(90) do?
Turns right 90 degrees
Turns left 90 degrees
Moves forward 90
Does nothing as 'turn' is not a turtle instruction
Look at this code, how many times will it loop?
50
90
0
4
What shape will this create?
Triangle
Rectangle
Hexagon
Will look like the turtle is climbing stairs
What does t.forward(300) do?
Moves in the direction it is facing 300 steps
Moves down the screen 300 steps
Moves up the screen 300 steps
To stop the turtle drawing you need to use which of the following commands?
penup:
pen_up
penup()
penup():
In order to move the turtle 120 forward without drawing on the screen, which order is correct?
forward(120)
penup()
pendown()
pendown()
forward(120)
penup()
penup()
forward(120)
pendown()
Looking at the value of each column
what is this binary number worth ?
2
4
6
8
Looking at the value of each column
what is this binary number worth ?
64
1
65
8
Looking at the value of each column
what is this binary number worth ?
64
32
96
6432
Looking at the value of each column
what is this binary number worth ?
2
126
128
130
CONVERT the binary number
00 00 11 00
1100
12
16
8
Convert the binary number
10 00 01 00
128
4
130
132
Convert the DECIMAL number
20
00 01 01 00
00 00 01 10
00 01 01 11
10 01 00 00
Which is larger?
Megabyte
Kilobyte
Which is larger?
Bit
Byte
Which is larger?
Megabyte
Gigabyte
Convert 3 to binary
10000001
01111110
00000011
11001100
Malware (malicious software) is software that is designed to gain access to your computer with malicious intent.
False
True
Malware intent to:
Data theft
Disabling hardware
Forced advertising
Sending email spam
Extorting money
Malware can be categorised into:
Viruses
Trojans
Worm
Adware
Spyware and ransomware
Viruses ....
do not attach themselves to files
are a malicious form of self-replicating software.
will replicate itself by maliciously modifying other computer programs and inserting code.
For a virus can infect a system, even if it was not initiated/executed by a user
False
True
Common ways to catch a computer virus:
Click a confirmation button on a pop-up without reading it
Install Windows updates
Download files such as movies or games from illegal websites of peer-to-peer file-sharing platforms
Download an email attachment
Worms ......
replicate themselves
do not attach themselves to files as a virus does.
spread through the network and use the system’s resources.
attach themselves to files as a virus does.
Ransomware ....
form of virus
self-replicating
form of worm
prevents the user from being able to access the data
A trojan .........
might open a ‘back door’ to give an attacker remote access to your computer.
is unwanted software that monitors and gathers information on a person and how they use their computer.
is a piece of software that appears to perform a useful function (such as a game) but unbeknown to the user it also performs malicious actions.
Spyware is unwanted software that monitors and gathers information on a person and how they use their computer.
False
True
Adware ....
prevents the user from being able to access the data.
infects a computer and causes it to download or display malicious adverts or pop-ups
Must be a Trojan
can be a worm, virus, or Trojan
is used to cause damage
Spyware is used to .....
cause damage
get data
keep track of what you are doing
Cyber security is ...
The practice of protecting systems, networks, and programs from digital attacks.
Any activity designed to protect the usability and integrity of a network and its data by managing access to the network.
........ is a type of spyware that logs the keystrokes used and can collect data from an infected computer, including personal information such as websites visited, user logins and financial information.
Spyware
Trogan
Keylogger
Adware
Select the correct definition/s for the term "Malware"
is a software that is designed to gain access to your computer with malicious intent
is a program that is designed to gain access to your computer with intrusive intent
is a umbrella term for a program that is designed to gain access to your computer with hostile intent
