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WorksheetsTest Review 9-4-25
Total questions: 50
Worksheet time: 25mins
A file extension is called:
a suffix at the end of a filename
the main part of a filename
a type of computer virus
a type of software
A PDF is:
a Portable Document Format
a type of image file
a programming language
a spreadsheet application
A Word Document is:
a type of text file created by Microsoft Word
a spreadsheet file used for calculations
an image file format
a video file format
Select the correct file extension for photos from the options below.
.jpg
.exe
.txt
.mp3
The file extension for animations is:
.gif
.jpg
.txt
.mp3
The best file extension for prints is:
.jpg
.png
.gif
.tiff
The file extension commonly used by professional cameras is:
.raw
.jpg
.png
.gif
Select the file extension that supports transparency.
.jpg
.png
.bmp
.gif
A Vector file extension is:
.svg
.jpg
.bmp
.png
Which file size is bigger? MB, TB or GB
MB
TB
GB
KB
1 TB is equal to:
1,024 GB
100 GB
10,000 MB
512 GB
1 GB is equal to:
1024 MB
100 MB
512 KB
1 TB
Select the correct file extension for audio files.
.mp3
.jpg
.docx
Select the correct file extension for a video file.
.mp4
.jpg
.docx
.mp3
Compressing files does which of the following?
Reduces the file size
Increases the file size
Deletes the files
Changes the file format
Can .exe files be dangerous?
Yes, .exe files can be dangerous.
No, .exe files are always safe.
.exe files cannot contain viruses.
.exe files are only used for images.
A virus is:
A computer virus is a type of malicious software designed to replicate itself and spread from one computer to another, often causing damage or stealing information.
a type of bacteria that helps in digestion
a multicellular organism found in water
a non-living mineral particle
A Boot Sector Virus is:
A type of virus that infects the master boot record of a storage device.
A virus that only infects email attachments.
A virus that targets only web browsers.
A type of antivirus software.
A File Infector Virus is:
A type of virus that attaches itself to executable files and spreads to other files when the program is run.
A virus that only infects boot sectors of hard drives.
A virus that only targets mobile devices.
A virus that is harmless and does not replicate.
Malware is:
A type of malicious software designed to harm or exploit any device, service, or network.
A harmless software used for data backup.
A programming language used for web development.
A security protocol for safe internet browsing.
Ransomware is:
a type of malicious software that blocks access to data until a ransom is paid.
a software used to speed up computers.
an antivirus program that protects against malware.
a tool for creating secure passwords.
Identity Theft is:
The act of stealing someone else's personal information to commit fraud.
A type of computer virus that damages files.
A legal way to use someone else's identity.
A method of protecting your online accounts.
Cyberbullying is:
the use of electronic communication to bully a person
a type of physical bullying at school
helping others online
ignoring messages on social media
An email is:
a method of exchanging digital messages over the internet
a type of physical mail delivered by post
a device used for making phone calls
a printed newspaper article
An Instant Message is:
A real-time text communication between users over the internet.
A type of email sent to multiple recipients.
A printed message delivered by courier.
A voice call made over the internet.
A Subject Line in the Email is:
the line that summarizes the content of the email
the recipient's email address
the main body of the email
the signature at the end of the email
Identify the greeting in an Email from the following options:
Dear Sir/Madam,
Best regards,
Yours sincerely,
Thank you,
Closing in an email refers to:
the way you end your message politely
the subject line of your email
the greeting at the beginning of your email
the attachment you include
Using informal language in emails is acceptable.
Yes, it is sometimes acceptable depending on the context.
No, it is never acceptable.
Only in formal business emails.
Only when writing to strangers.
An attachment in an email is:
A file sent along with the email message.
The subject line of the email.
A greeting at the start of the email.
The email address of the sender.
Which of the following file extensions is used for spreadsheet documents?
.xlsx
.mp4
.jpg
What is the main purpose of antivirus software?
To compress video files
To send emails
To create image files
To protect computers from malware and viruses
Which of the following is considered a strong password?
Qw!8zT#9pL
abcdefg
123456
password123
What does the file extension .docx usually represent?
An audio file
A video file
An image file
A word processing document
Which of the following is a safe practice when opening email attachments?
Only open attachments from trusted sources
Download attachments from unknown emails
Open all attachments immediately
Ignore the sender's address
What is the main function of a file extension?
To change the file's name automatically
To indicate the type of file and the program that can open it
To increase the file size
To protect the file from viruses
Which of the following is a good practice for creating a secure password?
Using a mix of letters, numbers, and special characters
Using the word 'password'
Using your birthdate
Using only lowercase letters
Which of the following is a common file extension for spreadsheet documents?
.jpg
.mp3
.xlsx
Phishing is best described as:
a method of compressing files
an attempt to obtain sensitive information by pretending to be a trustworthy entity in electronic communication
a way to speed up your computer
a type of image editing software
Which file extension is typically used for compressed archive files?
.mp4
.png
.docx
.zip
Which of the following is an example of a phishing attempt?
A message from a friend about a party
A reminder from your calendar app
A newsletter from a trusted website
An email asking for your password and bank details
What is the main purpose of using antivirus software?
To organize your files
To increase internet speed
To protect your computer from malware and viruses
To create documents
Which of the following is a safe practice when opening email attachments?
Ignore the file type of the attachment.
Download attachments from unknown senders.
Open all attachments immediately.
Only open attachments from trusted sources.
What does the file extension .pptx usually indicate?
An image file
A text document
A presentation file
An audio file
Which of the following is an example of a strong email subject line?
Meeting Agenda for 10th June
Hi
Important
None
What should you do if you receive an unexpected email with a suspicious link?
Forward the email to all your contacts
Delete the email without clicking the link
Reply to the sender asking for more information
Click the link to see what it is
Which file extension is commonly associated with image files?
.jpg
.docx
.pptx
.exe
Which of the following file extensions is typically used for text documents?
.mp3
.jpg
.exe
.txt
What should you do before clicking on a link in an email from an unknown sender?
Forward the email to everyone
Verify the sender and check for suspicious content
Reply with your personal information
Click the link immediately
Which of the following file extensions is used for video files?
.xlsx
.mp4
.docx
