MCQOPTIONS
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MCQOPTIONS
This section includes 11 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. |
How many entries are present in each of the S-boxes present in the blowfish algorithm? |
| A. | 256 |
| B. | 512 |
| C. | 1024 |
| D. | 64 |
| Answer» B. 512 | |
| 2. |
The blowfish algorithm’s key expansion converts a key of at most 448 bits into several subkey arrays totaling ___________ bytes. |
| A. | 4096 |
| B. | 4608 |
| C. | 4168 |
| D. | 4864 |
| Answer» D. 4864 | |
| 3. |
HOW_MANY_ENTRIES_ARE_PRESENT_IN_EACH_OF_THE_S-BOXES_PRESENT_IN_THE_BLOWFISH_ALGORITHM??$ |
| A. | 256 |
| B. | 512 |
| C. | 1024 |
| D. | 64 |
| Answer» B. 512 | |
| 4. |
How many S-boxes are present in the blowfish algorithm? |
| A. | 2 |
| B. | 4 |
| C. | 6 |
| D. | 8 |
| Answer» C. 6 | |
| 5. |
XOR and addition operations take place on bytes of size |
| A. | 8 bits |
| B. | 16 bits |
| C. | 32 bits |
| D. | 64 bits |
| Answer» D. 64 bits | |
| 6. |
Blowfish algorithm uses the Feistel Structure. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 7. |
The blowfish algorithm’s key expansion converts a key of at most 448 bits into several subkey arrays totaling ___________ bytes.$ |
| A. | 4096 |
| B. | 4608 |
| C. | 4168 |
| D. | 4864 |
| Answer» D. 4864 | |
| 8. |
What is the minimum size of the key in blowfish algorithm? |
| A. | 64 bits |
| B. | 32 bits |
| C. | 56 bits |
| D. | 48 bits |
| Answer» C. 56 bits | |
| 9. |
The blowfish algorithm can be implemented on 16 bit processors. |
| A. | True |
| B. | False |
| Answer» C. | |
| 10. |
Blowfish encrypts blocks of plaintext which have size |
| A. | 256 bits |
| B. | 64 bits |
| C. | 72 bits |
| D. | 128 bits |
| Answer» D. 128 bits | |
| 11. |
What is the maximum size of the key in blowfish algorithm? |
| A. | 256 bits |
| B. | 512 bits |
| C. | 56 bytes |
| D. | 48 bytes |
| Answer» D. 48 bytes | |