Grade 9 term three review

1. What is the primary purpose of layers of abstraction in computing systems?

• A) To simplify programming languages
  

• B) To hide complexity and provide simpler interfaces
  

• C) To enhance hardware performance
  

• D) To increase security

2. Which of the following is NOT an example of an input device in a computing system?

• A) Keyboard

• B) Mouse

• C) Monitor

• D) Scanner

3. What is the purpose of a router in a computer network?

• A) To connect devices within the same network
  

• B) To connect different networks together
  

• C) To convert digital signals to analog signals
  

• D) To store and retrieve data packets

5. Which type of network covers a small geographical area such as a single building or campus?

• A) LAN (Local Area Network)
  

• B) WAN (Wide Area Network)
  

• C) MAN (Metropolitan Area Network)
  

• D) PAN (Personal Area Network)

7. What is the function of an output device in a computing system?

• A) To provide input to the computer
  

• B) To store data for future use
  

• C) To display processed information to the user
  

• D) To perform calculations

Which type of network spans a large geographical area, often connecting multiple cities or countries?

• A) LAN (Local Area Network)
  

• B) WAN (Wide Area Network)
  

• C) MAN (Metropolitan Area Network)
  

• D) PAN (Personal Area Network)