1 Which is the first step in the systematic troubleshooting process? A Identify the problem B Replace the hardware C Document the findings D Restart the computer
2 What is the main purpose of a Karnaugh map? A To draw circuit diagrams B To simplify Boolean expressions C To convert analog signals to digital D To design adders
3 Proper shutdown of a computer helps to: A Prevent data loss and hardware damage B Increase power usage C Make the screen brighter D Slow down startup
4 Which activity is part of establishing a plan of action in troubleshooting? A Guessing without any testing B Deciding the steps and resources needed to fix the problem C Ignoring the root cause D Deleting all user files
5 Which of the following is an analog quantity? A A digital clock display B A light switch state (ON/OFF) C The temperature of a room D A computer's binary data
6 Which of the following is a method for data backup? A Using cloud storage B Deleting files C Formatting the hard drive D Shutting down the computer
7 What is a common software issue that can often be fixed by restarting the computer? A Temporary system freeze B Broken monitor screen C Faulty RAM module D Loose power cable
8 Which security threat can be addressed by using antivirus software? A Hardware failure B Virus infection C Power outage D Broken screen
9 What does the final step of documenting findings help with? A Future troubleshooting and knowledge sharing B Increasing the computer's speed C Reducing the need for backups D Replacing hardware components
10 Which law of Boolean algebra states that A + A = A? A Commutative law B Idempotent law C Distributive law D Absorption law
11 A full-adder can be constructed using: A Two half-adders and an OR gate B One half-adder and an AND gate C Three half-adders D Four half-adders
12 A possible sign of a failing hard disk is: A Strange clicking noises and slow performance B A fast internet connection C Bright screen colors D A new mouse
14 What is the benefit of sharing troubleshooting knowledge with others? A It creates more problems B It helps everyone solve issues faster C It hides solutions from colleagues D It increases downtime
15 Which gate is used to produce the sum output in a half-adder? A AND gate B OR gate C XOR gate D NAND gate
16 What is the purpose of establishing a plan of action in troubleshooting? A To resolve the problem systematically B To ignore the problem C To increase the problem D To delay the solution
17 In a half-adder circuit, the sum output is obtained by using: A AND gate B OR gate C XOR gate D NOT gate
18 What is a minterm in Boolean algebra? A A product term where each variable appears once B A sum term where each variable appears once C A term with no variables D A term with only one variable
19 In a Karnaugh map, what does each cell represent? A A maxterm B A minterm C A logic gate D A truth table row
20 Which of the following is a common hardware-related issue? A Overheating of the computer B Wrong file name C Outdated antivirus D Incorrect password
21 Which is a good practice for maintaining software? A Never updating software B Regularly installing updates and patches C Using pirated software D Disabling automatic updates permanently
22 Which task helps maintain a safe workspace for computers? A Keeping liquids away from hardware B Placing computers near heaters C Using dusty environments D Blocking ventilation fans
23 In a Karnaugh map (K-map), what does each cell represent? A A minterm B A maxterm C A logic gate D A truth table row
24 What should you do first when you encounter a computer problem? A Replace the hard disk B Identify the problem C Reinstall the operating system D Buy a new computer
25 What is the first step in the systematic troubleshooting process? A Identify the problem B Test the theory C Document findings D Implement the solution