MCQOPTIONS
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MCQOPTIONS
This section includes 16 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. |
while (len(temp) < requested_number_of_bits) do V = E(Key, V) temp = temp || V The above algorithm is for the CTR mode. |
| A. | True |
| B. | False. It is for the ECB mode |
| C. | False. It is for the OFB mode |
| D. | False. It is for the CFB modeView Answer |
| Answer» D. False. It is for the CFB modeView Answer | |
| 2. |
Which mode is recommend for the RFC 4086 Random number generator? |
| A. | CFB |
| B. | CBC |
| C. | OFB |
| D. | CTR |
| Answer» D. CTR | |
| 3. |
The CTR algorithm for PRNG is known as |
| A. | CTR_PRNG |
| B. | X-SESS |
| C. | CTR-SESS |
| D. | CTR_DRBG |
| Answer» E. | |
| 4. |
Which mode is recommend for the ANSI standard X9.82 Random number generator? |
| A. | OFB |
| B. | CTR |
| C. | CFB |
| D. | CFB |
| Answer» C. CFB | |
| 5. |
AES PRNG produces bits outputs of size |
| A. | 512 bits |
| B. | 128 bits |
| C. | 256 bits |
| D. | 64 bits |
| Answer» C. 256 bits | |
| 6. |
WHICH_MODE_IS_RECOMMEND_FOR_THE_ANSI_STANDARD_X9.82_RANDOM_NUMBER_GENERATOR??$ |
| A. | OFB |
| B. | CTR |
| C. | CFB |
| D. | CFB |
| Answer» C. CFB | |
| 7. |
Which mode is recommend for the RFC 4086 Random number generator?$ |
| A. | CFB |
| B. | CBC |
| C. | OFB |
| D. | CTR |
| Answer» D. CTR | |
| 8. |
The_CTR_algorithm_for_PRNG_is_known_as$ |
| A. | CTR_PRNG |
| B. | X-SESS |
| C. | CTR-SESS |
| D. | CTR_DRBG |
| Answer» E. | |
| 9. |
AES PRNG produces bits outputs of siz? |
| A. | 512 bits |
| B. | 128 bits |
| C. | 256 bits |
| D. | 64 bits |
| Answer» C. 256 bits | |
| 10. |
Which mode is recommend for the X9.82 Random number generator? |
| A. | OFB |
| B. | CBC |
| C. | CFB |
| D. | CTR |
| Answer» B. CBC | |
| 11. |
Which of these modes is an appropriate mode for PRNG? |
| A. | ECB |
| B. | CBC |
| C. | CFB |
| D. | CTR |
| Answer» E. | |
| 12. |
Find the first 8 bits for Blum Blum Shub Bit Generator when seed = 101355 and n = 192649. |
| A. | 10101010 |
| B. | 11100010 |
| C. | 11001011 |
| D. | 11001110 |
| Answer» E. | |
| 13. |
A CSPRBG is defined as one that passes the __ test. |
| A. | Runs test |
| B. | Maurer’s Universal statistical test |
| C. | Frequency Test |
| D. | On-bit test |
| Answer» E. | |
| 14. |
The appropriate value for m (in LCM) is |
| A. | 2<sup>(31)</sup> – 1 |
| B. | 2<sup>(31)</sup> |
| C. | 2<sup>(32)</sup> |
| D. | 2<sup>(32) </sup>– 1 |
| Answer» B. 2<sup>(31)</sup> | |
| 15. |
Using the Linear Congruential Method, for a=5, c=0 and m=32. The period is |
| A. | 8 |
| B. | 4 |
| C. | 9 |
| D. | 11 |
| Answer» B. 4 | |
| 16. |
Using the Linear Congruential Method (LCM), for a=7, c=0 and m=32. The period is |
| A. | 13 |
| B. | 4 |
| C. | 11 |
| D. | 7 |
| Answer» C. 11 | |