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Modulus - 2 Video Lecture | Quantitative Aptitude (Quant) - CAT
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FAQs on Modulus - 2 Video Lecture - Quantitative Aptitude (Quant) - CAT
| 1. What is the definition of modulus in mathematics? |  |
| 2. How is modulus used in computer programming? | |
Ans. In computer programming, the modulus operator is used to find the remainder when one integer is divided by another. It is particularly useful in tasks such as determining whether a number is even or odd, or for cycling through a set of values.
| 3. Can modulus be negative? | |
Ans. Yes, the modulus can be negative. When the dividend is negative, the modulus will also be negative. However, when the dividend is positive, the modulus will always be positive.
| 4. What is the relationship between modulus and absolute value? | |
Ans. Modulus and absolute value are related concepts. The absolute value of a number is the magnitude of that number without considering its sign. The modulus of a number is the remainder when that number is divided by another. In some cases, the modulus of a number can be equal to its absolute value, but they are not always the same.
| 5. How is modulus used in cryptography? | |
Ans. In cryptography, modulus is used in modular arithmetic, specifically in the RSA algorithm. The RSA algorithm uses large prime numbers and their modulus to encrypt and decrypt messages securely. The modulus plays a crucial role in ensuring the security of the encryption scheme.
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