MCQOPTIONS
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MCQOPTIONS
This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Symmetric Ciphers knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
(7x + 2)-(x2 + 5) in Z_10 = |
| A. | 9x<sup>2</sup> + 7x + 7 |
| B. | 9x<sup>2</sup>+ 6x + 10 |
| C. | 8x<sup>2</sup> + 7x + 6 |
| D. | None of the mentioned |
| Answer» B. 9x<sup>2</sup>+ 6x + 10 | |
| 2. |
The sum of polynomials of degrees m and n has degree max[m,n]. |
| A. | True |
| B. | False |
| C. | Can t Say |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 3. |
The product of polynomials of degrees m and n has a degree m+n+1. |
| A. | True |
| B. | False |
| C. | Can t Say |
| D. | None of the mentioned |
| Answer» C. Can t Say | |
| 4. |
The product of monic polynomials is monic. |
| A. | True |
| B. | False |
| C. | Can t Say |
| D. | None of the mentioned |
| Answer» B. False | |
| 5. |
7x = 6 mod 5. Then the value of x is |
| A. | 2 |
| B. | 3 |
| C. | 4 |
| D. | 5 |
| Answer» C. 4 | |
| 6. |
7.Find the inverse of (x7+x+1) modulo (x8 + x4 + x3+ x + 1). |
| A. | x<sup>7</sup>+x |
| B. | x<sup>6</sup>+x<sup>3</sup> |
| C. | x<sup>7</sup> |
| D. | x<sup>5</sup>+1 |
| Answer» D. x<sup>5</sup>+1 | |
| 7. |
The polynomial x4+1 can be represented as |
| A. | (x+1)(x<sup>3</sup>+x<sup>2</sup>+1) |
| B. | (x+1)(x<sup>3</sup>+x<sup>2</sup>+x) |
| C. | (x)(x<sup>2</sup>+x+1) |
| D. | None of the mentioned |
| Answer» E. | |
| 8. |
If f(x)=x7+x5+x4+x3+x+1 and g(x)=x3+x+1, find f(x) g(x). |
| A. | x<sup>7</sup>+x<sup>5</sup>+x<sup>4</sup>+x<sup>3</sup> |
| B. | x<sup>6</sup>+x<sup>4</sup>+x<sup>2</sup>+x |
| C. | x<sup>4</sup>+x<sup>2</sup>+x+1 |
| D. | x<sup>7</sup>+x<sup>5</sup>+x<sup>4</sup> |
| Answer» E. | |