SS1 Digital Tech 3rd Test/Third Term
  • 1. Human thinking is base on .............
A) Binary
B) Octal
C) Hexadecimal
D) Decimal
  • 2. Computer thinking is base on
A) Number
B) Binary
C) Hexadecimal
D) Decimal
  • 3. In number system the conversion of decimal number of 12 to binary number is .........
A) 1100
B) 1110
C) 0101
D) 1011
  • 4. If 4-bit Binary = 1011, the hexadecimal is ........
A) A
B) B
C) D
D) E
  • 5. Which pf the following ís core component of the computer?
A) VGA
B) RAM
C) Mouse
D) Speaker
  • 6. Which of the following represents a strong, safe password practice?
A) Using "12345678" for easy memory
B) Sharing the password with all class members 
C) A combination of uppercase letters, lowercase letters, numbers, and symbols
D) Using your first name and birth year
  • 7. What is the main function of the Arithmetic Logic Unit (ALU)?
A) Regulating the system clock
B) Managing power distribution
C) Storing temporary boot instructions
D) Performing calculations and comparisons
  • 8. Why is RAM referred to as "volatile" memory?
A) It can only be read from, not written to.
B) It holds data permanently.
C) It loses its data when the power is turned off.
D) It is highly susceptible to physical damage.
  • 9. What component should you never open or attempt to repair yourself due to dangerously high stored electrical voltage?
A) The RAM slots
B) PSU
C) The DVD drive
D) The system cooling fan 
  • 10. What type of software should be constantly updated to protect a computer system against malware, trojans, and worms?
A) Presentation software
B) Spreadsheet software
C) Media player software 
D) Antivirus software
  • 11. Which of the following storage devices has no moving mechanical parts?
A) Solid-State Drive (SSD)
B) Hard Disk Drive (HDD)
C) Floppy Disk
D) DVD-RW Drive 
  • 12. Which motherboard component retains the system's time, date, and hardware settings when the computer is completely unplugged?
A) ROM Chip
B) CPU
C) CMOS Battery
D) Heat sink
  • 13. Which port allows for high-speed, hot-swappable connections for mice, keyboards, and flash drives?
A) Parallel port
B) USB Port
C) Serial Port
D) VGA port
  • 14. What is the function of the PSU?
A) It stores structural system files. [1]
B) It converts Alternating Current (AC) to Direct Current (DC).
C) It generates electricity using a backup battery.
D) It increases the voltage to speed up the CPU.
  • 15. Which internal hardware assembly protects the processor from overheating by dispersing thermal energy?
A) Transistor array
B) Surge protector
C) CMOS battery
D) Heat sink and cooling fan
  • 16. What is the main printed circuit board (PCB) that houses the CPU, memory, and expansion cards?
A) Motherboard
B) Power Supply Unit
C) Sound card
D) Hard drive controller
  • 17. Which category of software acts as an interface between the computer hardware and the user application programs?
A) Application software
B) Open-source software
C) System software
D) Utility Software
  • 18. Which of the following is the primary core component of an Operating System that manages system resources and hardware communication?
A) Shell
B) Device driver
C) Karnel
D) Register
  • 19. What type of software is required to tell the operating system how to communicate with a newly installed hardware device like a printer?
A) Utility program
B) Utility program
C) Compiler
D) Device driver
E) Firmware
  • 20. Which of the following is the primary purpose of an operating system?
A) To manage computer hardware and software resources
B) To design websites
C) To create spreadsheets
D) To protect the computer from physical theft
  • 21. Which of the following is NOT an operating system?
A) Linux
B) Android
C) Windoww
D) Oracle
  • 22. A user interface that relies on icons, windows, and menus is known as what?
A) Touch User Interface (TUI)
B) Command Line Interface (CLI)
C) Graphical User Interface (GUI)
D) Menu Driven Interface (MDI)
  • 23. Which software would be most suitable for creating a business presentation?
A) Microsoft PowerPoint
B) Notepad
C) Spreadsheet
D) CorelDRAW
  • 24. Which of the following is a database management system (DBMS)?
A) VLC Media Player
B) MySQL
C) Adobe Reader
D) WinRAR
  • 25. What type of software application is Google Chrome?
A) Web browser
B) Word processor
C) Operating system
D) Utility program
  • 26. What is the primary function of an antivirus software?
A) To compress large files
B) To detect, prevent, and remove malicious software
C) To recover deleted files
D) To speed up internet connection
  • 27. Which of the following is an example of a spreadsheet application?
A) Microsoft Word
B) Microsoft Access
C) Microsoft Excel
D) Microsoft PowerPoint
  • 28. What is the most effective way to protect important data against hardware destruction or fire disasters?
A) Changing the desktop wallpaper weekly
B) Locking the computer room doors
C) Shutting down the computer properly
D) Creating regular data backups on external drives or cloud storage
  • 29. Which utility software reduces the size of a file so it takes up less storage space?
A) File compression utility
B) Firewall
C) Disk formatting tool
D) Encryption software
  • 30. Which type of maintenance involves taking proactive measures to prevent hardware failure and extend computer lifespan?
A) Reactive maintenance
B) Predictive maintenance
C) Corrective maintenance
D) Preventive maintenance
  • 31. What is the most safe and effective tool for blowing dust out of a computer system unit case?
A) A household vacuum cleaner
B) ' A can of compressed air
C) A damp cloth
D) A hair dryer and blower
  • 32. Overheating in a central processing unit (CPU) is most frequently caused by a failure in which component?
A) Hadr drive
B) RAM modules
C) Cooling fan and heat sink
D) CMOS battery
  • 33. Which device provides temporary battery backup power to a computer when the main electricity fails?
A) Surge protector
B) Step-down transformer 
C) Uninterruptible Power Supply
D) Voltage stabilizer
  • 34. What is the primary function of a surge protector?
A) To increase the processing speed of the CPU
B) To protect sensitive electronics from sudden voltage spikes
C) To keep the computer running for 2 hours during power outages
D) To convert direct current (DC) to alternating current (AC)
  • 35. What can happen if you overload an electrical extension outlet in a computer laboratory?
A) The computer will download data quicker
B) It can cause overheating and electrical fire hazards
C) The monitor resolution will increase
D) The RAM capacity will double
  • 36. What is the study of designing equipment and workspaces to fit the human body for comfort and safety?
A) Economy
B) Cartography
C) Ecology
D) Ergonomics
  • 37. To prevent neck strain, how should a computer monitor be positioned relative to the user?
A) At or slightly below eye level, about an arm's length away
B) Tilted at a 90-degree angle to the ceiling
C) On the floor beside the desk
D) High above the head level
  • 38. Why is eating and drinking strictly prohibited inside a computer laboratory?
A) Computers cannot process data while people eat 
B) Food smell damages the monitor screen
C) It reduces the brightness of the room lamps
D) Spills can cause short circuits, equipment damage, or attract pests
  • 39. To avoid eye strain (Computer Vision Syndrome), what rule suggests looking away from the screen every 20 minutes?
A) The Golden Rule
B) The 10-10-10 Rule
C) The 50-50 Rule
D) The 20-20-20 Rule
  • 40. Which of the following poses a trip-and-fall hazard in a digital technology lab?
A) Under-desk cable trays
B) Neatly bundled cables using zip ties
C) Loose cables running across walking pathways
D) Wireless mice
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