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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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390987 MCQs Page 32746

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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327451
10 years ago, the ratio of ages of A and B was 13 : 17. 17 years from now, the ratio will be 10 : 11. What is the present age of B?
327452
The difference between the ages of a mother and her daughter is 24 years. If the ratio of their ages is 5 : 1, what is the mother's age?
327453
A is as much younger than B as he is older than C. If the sum of the ages of B and C is 48 years, what is the present age of A?
327454
Three years ago, the sum of the ages of a father and his son was 40 years. After 2 years, the sum of their ages will be:
327455
The present age of a father is 5 times the age of his son. Five years ago, the age of the father was 10 times the age of his son. Find the present age of the son.
327456
Hitesh is 40 years old and Rohit is 60 years old. How many years ago was the ratio of their ages 3 : 5?
327457
The ages of A and B are in the ratio 6 : 5 and the sum of their ages is 44 years. What will be the ratio of their ages after 8 years?
327458
If the sum of the ages of A and B is 60 and the ratio of their ages is 2 : 3, what is the age of A?
327459
A mother is twice as old as her son. If 20 years ago, the age of the mother was 10 times the age of the son, what is the present age of the mother?
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Ravi is 15 years younger than his brother. After 5 years, the ratio of their ages will be 2 : 3. What is Ravi's present age?