First Semester Revision (Ch1 & Ch2)

1. Binary is base 2. Decimal is base _______

• 4

• 8

• 10

2. ________________ sits on a computer and records what the user is typing.

• ransomware

• spyware

• virus

3. How many bits are there in this binary number - 11001010

• 4

• 6

• 8

4. Buying online is called_____________

• e-online

• e-commerce

• shopping app

5. 1100 in binary is _____ in decimal.

• 10

• 11

• 12

6. ______________ places unwanted adverts on a computer.

• spyware

• adware

• ransomware

7. If your AV software finds a malware signature in a file, it puts the file in ____________.

• recycle bin

• quarantine

• folder

8. The URL of a secure site starts with https://. The 's' stands for __________.

• secure

• standard

• star

9. The 2 digits used in binary number system are ____ and _____.

• 0 and 1

• 1 and 2

• 0 and 2

10. 1 + 1 + 1 in binary is ________

• 10

• 11

• 01