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