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Encryption Basics: Symmetric vs. Asymmetric MCQs

Prepare for Encryption Basics: Symmetric vs. Asymmetric MCQs with verified questions, past-paper solutions, and conceptual explanations for CSS, PMS, FPSC, PPSC, and NTS examinations.

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390420 MCQs Page 32686

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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326851
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?
326852
In 12 years, a man will be 3 times as old as he was 12 years ago. Find his present age.
326853
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?
326854
If 3 times A's age is equal to 4 times B's age, and the sum of their ages is 35, what is A's age?
326855
The sum of ages of a brother and sister is 30. Five years ago, the brother was 3 times as old as the sister. Find the sister's present age.
326856
Ten years ago, P's age was twice Q's age. If the present ratio of their ages is 4:3, what is P's present age?
326857
The ratio of present ages of A and B is 1:3. 5 years ago, the ratio was 1:4. Find A's present age.
326858
A father is 25 years older than his son. In 5 years, he will be twice as old as his son. What is the son's present age?
326859
In a family, the average age of the father and mother is 35. The average age of the father, mother, and their only child is 27. What is the child's age?
326860
The difference between the ages of two brothers is 8 years. The ratio of their ages is 5:3. What is the age of the younger brother?