MCQOPTIONS
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MCQOPTIONS
This section includes 18 Mcqs, each offering curated multiple-choice questions to sharpen your Cryptography and Network Security knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Find the 8-bit word related to the polynomial x6 + x5 + x2 + x +1 |
| A. | 00010011 |
| B. | 11000110 |
| C. | 00100110 |
| D. | 01100111 |
| Answer» E. | |
| 2. |
Find the 8-bit word related to the polynomial x5 + x2 + x |
| A. | 00010011 |
| B. | 01000110 |
| C. | 00100110 |
| D. | 11001010 |
| Answer» D. 11001010 | |
| 3. |
If f(x)=x3+x2+2 and g(x)=x2-x+1, find: f(x) x g(x) |
| A. | x4+x2+2x+2 |
| B. | x5+2x3+2x+3 |
| C. | x5+3x2-2x+2 |
| D. | x4+x2+x+1 |
| Answer» D. x4+x2+x+1 | |
| 4. |
If f(x)=x3+x2+2 and g(x)=x2-x+1, find the quotient of f(x) / g(x) |
| A. | x+3 |
| B. | x2+4 |
| C. | x |
| D. | x+2 |
| Answer» E. | |
| 5. |
If f(x)=x4+x2-x+2 and g(x)=x2-x+1, find: f(x) – g(x) |
| A. | x4+1 |
| B. | x2+1 |
| C. | x2+2x+6 |
| D. | x4-1 |
| Answer» B. x2+1 | |
| 6. |
If f(x)=x4+x3+2 and g(x)=x3-x+6, find: f(x) + g(x) |
| A. | 2x4+2x3+x+8 |
| B. | x4+2x3-x+8 |
| C. | x4+x2+x+8 |
| D. | x4+x3+8 |
| Answer» C. x4+x2+x+8 | |
| 7. |
If f(x)=x3+x2+2 and g(x)=x2-x+1, find: f(x) – g(x) |
| A. | x3+x+4 |
| B. | x3+x+1 |
| C. | x3+x2+3 |
| D. | x3+3x+2 |
| Answer» C. x3+x2+3 | |
| 8. |
If f(x)=x3+x2+2 and g(x)=x2-x+1, find: f(x) + g(x) |
| A. | x3+2x2-x+3 |
| B. | x3+x2+3 |
| C. | x3+x+1 |
| D. | x2+2x+4 |
| Answer» B. x3+x2+3 | |
| 9. |
What do the above numbers correspond to?0 1 2 3 40 4 3 2 1 |
| A. | Both Additive Inverses |
| B. | Both Multiplicative Inverses |
| C. | Additive and Multiplicative Inverse respectively |
| D. | Multiplicative and Additive Inverses respectivelyView Answer |
| Answer» C. Additive and Multiplicative Inverse respectively | |
| 10. |
IF_F(X)=X4+X2-X+2_AND_G(X)=X2-X+1,_FIND:_F(X)_‚ÄÖ√Ñ√∂‚ÀÖ√Ë‚ÀÖ¬®_G(X)?$# |
| A. | x<sup>4</sup>+1 |
| B. | x<sup>2</sup>+1 |
| C. | x<sup>2</sup>+2x+6 |
| D. | x<sup>4</sup>-1 |
| Answer» D. x<sup>4</sup>-1 | |
| 11. |
IF_F(X)=X4+X3+2_AND_G(X)=X3-X+6,_FIND:_F(X)_+_G(X)?$ |
| A. | 2x<sup>4</sup>+2x<sup>3</sup>+x+8 |
| B. | x<sup>4</sup>+2x<sup>3</sup>-x+8 |
| C. | x<sup>4</sup>+x<sup>2</sup>+x+8 |
| D. | x<sup>4</sup>+x<sup>3</sup>+8 |
| Answer» E. | |
| 12. |
If f(x)=x3+x2+2 and g(x)=x2-x+1, find the quotient of f(x) / g(x)$ |
| A. | x+3 |
| B. | x<sup>2</sup>+4 |
| C. | x |
| D. | x+2 |
| Answer» D. x+2 | |
| 13. |
If f(x)=x3+x2+2 and g(x)=x2-x+1, find: f(x) – g(x?# |
| A. | x<sup>3</sup>+x+4 |
| B. | x<sup>3</sup>+x+1 |
| C. | x<sup>3</sup>+x<sup>2</sup>+3 |
| D. | x<sup>3</sup>+3x+2 |
| Answer» B. x<sup>3</sup>+x+1 | |
| 14. |
If f(x)=x3+x2+2 and g(x)=x2-x+1, find: f(x) + g(x) |
| A. | x<sup>3</sup>+2x<sup>2</sup>-x+3 |
| B. | x<sup>3</sup>+x<sup>2</sup>+3 |
| C. | x<sup>3</sup>+x+1 |
| D. | x<sup>2</sup>+2x+4 |
| Answer» C. x<sup>3</sup>+x+1 | |
| 15. |
How many numbers cannot be used in GF(p) in 2n where n=4? |
| A. | 2 |
| B. | 5 |
| C. | 3 |
| D. | 1 |
| Answer» C. 3 | |
| 16. |
Both Additive Inverses |
| A. | Both Multiplicative Inverses |
| B. | Additive and Multiplicative Inverse respectively |
| C. | Multiplicative and Additive Inverses respectively |
| Answer» B. Additive and Multiplicative Inverse respectively | |
| 17. |
Multiplication / Division follow which operation? |
| A. | XOR |
| B. | NAND |
| C. | AND |
| D. | OR |
| Answer» D. OR | |
| 18. |
A very common field in this category is GF(2) with the set {1, 2} and two operations, addition and multiplication. |
| A. | True |
| B. | False |
| Answer» C. | |