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) Decimal
B) Number
C) Hexadecimal
D) Binary
  • 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) D
C) E
D) B
  • 5. Which pf the following ís core component of the computer?
A) Speaker
B) Mouse
C) VGA
D) RAM
  • 6. Which of the following represents a strong, safe password practice?
A) Using your first name and birth year
B) Using "12345678" for easy memory
C) A combination of uppercase letters, lowercase letters, numbers, and symbols
D) Sharing the password with all class members 
  • 7. What is the main function of the Arithmetic Logic Unit (ALU)?
A) Regulating the system clock
B) Storing temporary boot instructions
C) Performing calculations and comparisons
D) Managing power distribution
  • 8. Why is RAM referred to as "volatile" memory?
A) It holds data permanently.
B) It loses its data when the power is turned off.
C) It can only be read from, not written to.
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 DVD drive
B) The RAM slots
C) PSU
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) Spreadsheet software
B) Presentation software
C) Media player software 
D) Antivirus software
  • 11. Which of the following storage devices has no moving mechanical parts?
A) DVD-RW Drive 
B) Solid-State Drive (SSD)
C) Hard Disk Drive (HDD)
D) Floppy Disk
  • 12. Which motherboard component retains the system's time, date, and hardware settings when the computer is completely unplugged?
A) Heat sink
B) ROM Chip
C) CPU
D) CMOS Battery
  • 13. Which port allows for high-speed, hot-swappable connections for mice, keyboards, and flash drives?
A) USB Port
B) Serial Port
C) VGA port
D) Parallel port
  • 14. What is the function of the PSU?
A) It converts Alternating Current (AC) to Direct Current (DC).
B) It increases the voltage to speed up the CPU.
C) It generates electricity using a backup battery.
D) It stores structural system files. [1]
  • 15. Which internal hardware assembly protects the processor from overheating by dispersing thermal energy?
A) Transistor array
B) Surge protector
C) Heat sink and cooling fan
D) CMOS battery
  • 16. What is the main printed circuit board (PCB) that houses the CPU, memory, and expansion cards?
A) Motherboard
B) Sound card
C) Power Supply Unit
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) System software
C) Utility Software
D) Open-source software
  • 18. Which of the following is the primary core component of an Operating System that manages system resources and hardware communication?
A) Karnel
B) Device driver
C) Shell
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) Compiler
C) Utility program
D) Device driver
E) Firmware
  • 20. Which of the following is the primary purpose of an operating system?
A) To design websites
B) To create spreadsheets
C) To manage computer hardware and software resources
D) To protect the computer from physical theft
  • 21. Which of the following is NOT an operating system?
A) Oracle
B) Linux
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) Menu Driven Interface (MDI)
D) Graphical User Interface (GUI)
  • 23. Which software would be most suitable for creating a business presentation?
A) Microsoft PowerPoint
B) Spreadsheet
C) Notepad
D) CorelDRAW
  • 24. Which of the following is a database management system (DBMS)?
A) VLC Media Player
B) WinRAR
C) Adobe Reader
D) MySQL
  • 25. What type of software application is Google Chrome?
A) Operating system
B) Web browser
C) Word processor
D) Utility program
  • 26. What is the primary function of an antivirus software?
A) To compress large files
B) To recover deleted files
C) To speed up internet connection
D) To detect, prevent, and remove malicious software
  • 27. Which of the following is an example of a spreadsheet application?
A) Microsoft Excel
B) Microsoft PowerPoint
C) Microsoft Access
D) Microsoft Word
  • 28. What is the most effective way to protect important data against hardware destruction or fire disasters?
A) Shutting down the computer properly
B) Changing the desktop wallpaper weekly
C) Creating regular data backups on external drives or cloud storage
D) Locking the computer room doors
  • 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) Preventive maintenance
B) Predictive maintenance
C) Corrective maintenance
D) Reactive 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 damp cloth
C) ' A can of compressed air
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) Cooling fan and heat sink
B) Hadr drive
C) CMOS battery
D) RAM modules
  • 33. Which device provides temporary battery backup power to a computer when the main electricity fails?
A) Voltage stabilizer
B) Surge protector
C) Step-down transformer 
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 keep the computer running for 2 hours during power outages
C) To convert direct current (DC) to alternating current (AC)
D) To increase the processing speed of the CPU
  • 35. What can happen if you overload an electrical extension outlet in a computer laboratory?
A) The RAM capacity will double
B) It can cause overheating and electrical fire hazards
C) The computer will download data quicker
D) The monitor resolution will increase
  • 36. What is the study of designing equipment and workspaces to fit the human body for comfort and safety?
A) Cartography
B) Ergonomics
C) Economy
D) Ecology
  • 37. To prevent neck strain, how should a computer monitor be positioned relative to the user?
A) High above the head level
B) Tilted at a 90-degree angle to the ceiling
C) At or slightly below eye level, about an arm's length away
D) On the floor beside the desk
  • 38. Why is eating and drinking strictly prohibited inside a computer laboratory?
A) Spills can cause short circuits, equipment damage, or attract pests
B) Food smell damages the monitor screen
C) It reduces the brightness of the room lamps
D) Computers cannot process data while people eat 
  • 39. To avoid eye strain (Computer Vision Syndrome), what rule suggests looking away from the screen every 20 minutes?
A) The 20-20-20 Rule
B) The Golden Rule
C) The 50-50 Rule
D) The 10-10-10 Rule
  • 40. Which of the following poses a trip-and-fall hazard in a digital technology lab?
A) Neatly bundled cables using zip ties
B) Wireless mice
C) Under-desk cable trays
D) Loose cables running across walking pathways
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