MCQOPTIONS
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MCQOPTIONS
This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Digital Communications knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A code is a mapping from |
| A. | Binary sequence to dicrete set of symbols |
| B. | Discrete set of symbols to binary sequence |
| C. | All of the mentioned |
| D. | None of the mentioned |
| Answer» C. All of the mentioned | |
| 2. |
WHICH_ARE_UNIQUELY_DECODABLE_CODES??$ |
| A. | Fixed length codes |
| B. | Variable length codes |
| C. | Fixed & Variable length codes |
| D. | None of the mentioned |
| Answer» B. Variable length codes | |
| 3. |
A_rate_distortion_function_is_a$ |
| A. | Concave function |
| B. | Convex function |
| C. | Increasing function |
| D. | None of the mentioned |
| Answer» C. Increasing function | |
| 4. |
A code is a mapping fro? |
| A. | Binary sequence to dicrete set of symbols |
| B. | Discrete set of symbols to binary sequence |
| C. | All of the mentioned |
| D. | None of the mentioned |
| Answer» C. All of the mentioned | |
| 5. |
Which achieves greater compression? |
| A. | Lossless coding |
| B. | Lossy coding |
| C. | Lossless & Lossy coding |
| D. | None of the mentioned |
| Answer» C. Lossless & Lossy coding | |
| 6. |
Which coding method uses entropy coding? |
| A. | Lossless coding |
| B. | Lossy coding |
| C. | Lossless & Lossy coding |
| D. | None of the mentioned |
| Answer» C. Lossless & Lossy coding | |
| 7. |
In digital image coding which image must be smaller in size? |
| A. | Input image |
| B. | Output image |
| C. | Input & Output image |
| D. | None of the mentioned |
| Answer» C. Input & Output image | |
| 8. |
Which reduces the size of the data? |
| A. | Source coding |
| B. | Channel coding |
| C. | Source & Channel coding |
| D. | None of the mentioned |
| Answer» B. Channel coding | |
| 9. |
ASCII code is a |
| A. | Fixed length code |
| B. | Variable length code |
| C. | Fixed & Variable length code |
| D. | None of the mentioned |
| Answer» B. Variable length code | |
| 10. |
Mutual information should be |
| A. | Positive |
| B. | Negative |
| C. | Positive & Negative |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 11. |
While recovering signal, which gets attenuated more? |
| A. | Low frequency component |
| B. | High frequency component |
| C. | Low & High frequency component |
| D. | None of the mentioned |
| Answer» C. Low & High frequency component | |