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Firewalls, VPNs, and Ethical Hacking Fundamentals MCQs

Prepare for Firewalls, VPNs, and Ethical Hacking Fundamentals MCQs with verified questions, past-paper solutions, and conceptual explanations for CSS, PMS, FPSC, PPSC, and NTS examinations.

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Practice Questions

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Topic Notes: Computer Science

These notes summarize the key preparation context before you attempt the MCQs. Review the topic focus, then practice the questions below with answers and explanations.

Quick Overview

Practice Computer Science MCQs to prepare for CSS, PMS, FPSC, PPSC, SPSC, KPPSC, BPSC, NTS, and university entry tests in Pakistan. This section covers key theoretical concepts, syllabus topics, and repeated past paper questions related to Computer Science.

Topic-Wise Breakdown
Structured subject modules organized by difficulty and exam frequency.
Verified Answer Keys
Detailed explanations cross-referenced with standard textbooks and commission keys.
Complete Coverage
Covers fundamental definitions, advanced problem-solving, and recent exam trends.

How to Prepare Computer Science MCQs for Competitive Exams

Review each sub-topic systematically. Start with fundamental concepts, practice multiple-choice question sets under timed conditions, and note down questions you missed in your revision tracker. Select a specific topic from the list below to begin practice.

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327411
The sum of the ages of A and B is 48. If A is 3 times as old as B, find the difference in their ages.
327412
The difference between the ages of a father and son is 30. In 10 years, the ratio of their ages will be 3:1. What is the father's present age?
327413
If 5 years are added to A's age, it becomes equal to B's age 5 years ago. If A is 10 years old, what is B's present age?
327414
The ratio of the ages of A and B is 5:2. If the product of their ages is 160, what is the age of A?
327415
A mother's age is 4 times her daughter's age. 10 years from now, the mother's age will be twice the daughter's age. Find the daughter's present age.
327416
The ratio of A's age to B's age is 2:3. If A's age increases by 4 years and B's age increases by 4 years, the ratio becomes 3:4. What is A's present age?
327417
A father's age is 3 times his son's age. After 12 years, he will be twice as old as his son. What is the son's present age?
327418
The average age of 5 boys is 12 years. If the age of one more boy is added, the average becomes 13 years. What is the age of the new boy?
327419
In 12 years, a man will be 3 times as old as he was 12 years ago. Find his present age.
327420
The ratio of the ages of A and B is 5:6. If B is 6 years older than A, what is the sum of their ages?