1 Which step of the troubleshooting process comes immediately after identifying the problem? A Test the theory to determine the cause B Establish a theory of probable cause C Document findings, actions, and outcomes D Verify full system functionality
3 Which logic gate is equivalent to an inverted XOR gate? A XNOR gate B NAND gate C NOR gate D AND gate
4 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
6 Which Boolean law is represented by A + AB = A? A Commutative law B Absorption law C De Morgan's law D Associative law
7 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
8 What does 'establishing a plan of action' involve in troubleshooting? A Ignoring the problem B Deciding the steps to resolve the problem C Deleting all files D Turning off the computer permanently
9 The output of an XOR gate is HIGH when: A Both inputs are LOW B Both inputs are HIGH C Inputs are different D Inputs are the same
10 Which of the following helps in maintaining software? A Regular updates and antivirus scans B Never shutting down the computer C Using unlicensed software D Disabling firewall permanently
11 After identifying the problem, what should you do next? A Establish a theory of probable cause B Verify full system functionality C Buy new equipment D Delete all files
12 What does 'restarting' a computer typically help with? A Permanently deleting files B Resolving temporary software glitches C Increasing hard disk space D Upgrading the CPU
13 In a full-adder, the carry output is 1 when: A Only one input is 1 B Any two or all three inputs are 1 C All three inputs are 0 D Exactly one input is 1
14 What is a good practice before shutting down a computer at the end of the day? A Save work and close open programs properly B Pull the power plug out suddenly C Leave many programs open forever D Delete the operating system files
15 In Boolean algebra, which values can a binary variable take? A 0 and 1 B -1 and 1 C 0 to 9 D Any real number
16 Which logic gate is used to implement the Boolean expression Y = A · B? A OR gate B AND gate C NOT gate D XOR gate
17 What should you do after implementing a solution to a problem? A Verify full system functionality B Ignore the computer C Remove all software D Immediately buy new hardware
18 Which of these is a basic hardware-related issue? A Slow internet connection B Loose RAM module C Corrupted word file D Wrong system time
20 Which logic gate is equivalent to a combination of an AND gate followed by a NOT gate? A NAND gate B NOR gate C XOR gate D XNOR gate
21 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
22 What is the final step of the troubleshooting process? A Identify the problem B Test the theory C Document findings, actions, and outcomes D Implement the solution
23 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
24 Which logic gate gives a HIGH output when at least one input is HIGH? A AND gate B OR gate C NOR gate D XNOR gate
25 What is a common solution for a software application that freezes? A Replace the monitor B Restart the computer C Add more RAM D Change the keyboard