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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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389987 MCQs Page 32645

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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326441
A is 3 years older than B and 3 years younger than C. If the sum of their ages is 60, find the age of C.
326442
Sum of the ages of A, B, and C is 90 years. 10 years ago, the ratio of their ages was 1 : 2 : 3. Find the present age of C.
326443
The age of A is 5/4 of B's age. The sum of their ages is 45. What is A's age?
326444
Present ages of a father and a son are in the ratio 7:2. Five years ago, the product of their ages was 150. Find the present age of the father.
326445
If the ratio of present ages of A and B is 2 : 3 and 6 years ago the ratio was 1 : 2, what will be the ratio of their ages 6 years from now?
326446
The ratio of the ages of a man and his son is 4 : 1. If the product of their ages is 196, find the age of the man.
326447
The product of the present ages of A and B is 750. If the ratio of their ages is 6 : 5, find the sum of their ages.
326448
Raju is 5 years younger than his sister. His sister's age is 3 times the age of their brother. If their brother is 4 years old, what is Raju's age?
326449
The sum of ages of A, B, C is 96 years. 10 years ago, the ratio of their ages was 1:2:3. What is the present age of B?
326450
In 10 years, A will be twice as old as B was 10 years ago. If A is now 9 years older than B, what is the present age of A?