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| Q. |
Which method is preferred in magnetic tape recording? |
| A. | nrz-l |
| B. | nrz-m |
| C. | nrz-s |
| D. | none of the mentioned |
| Answer» B. nrz-m | |
| Explanation: nrz-m is also called as differential encoding and it is most preferred in magentic tape recording. | |
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