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System Analysis and Design - Section 2 Multiple Questions and Answers.
| 42. | A checksum digit is used for detecting Errors in | ||
| A. | Data transmission | ||
| B. | Arithmetic operations | ||
| C. | Logical operations | ||
| D. | All of the above | ||
| 43. | Which of the following is used to derive the address, of a record from the record key | ||
| A. | comma | ||
| B. | hashing | ||
| C. | variable | ||
| D. | field | ||
| 44. | The records in a file on magnetic tape | ||
| A. | can only be accessed serially | ||
| B. | are meant for backup | ||
| C. | cannot be transformed to a disk file | ||
| D. | have to be arranged in a key sequence | ||
| 45. | Data structuring is refined through a process called | ||
| A. | structuring process | ||
| B. | hierarchical structure | ||
| C. | normalization | ||
| D. | Relation structure | ||
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