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Data Processing 2024 WAEC Past Questions

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36

Which one of the following statements is true about database tables?

  • A. All the tables in a database have a common name
  • B. A table may contain repeating groups
  • C. Entries in a column are from different domains based on datatype
  • D. There are no duplicate rows in a table
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37

The major difference between serial and sequential files is that sequential files are

  • A. given a key
  • B. sorted in a particular order
  • C. stored as they come
  • D. recorded in any storage medium
View Answer & Discuss (1) WAEC 2024
38

Which one of the following pairs contains computer file classification?

  • A. Master file and serial file
  • B. Random file and master file
  • C. Reference file and random file
  • D. Transaction file and master file
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39

Which of the following statements supports the goals of data backup?
I. Need for duplication II. Need for future reference III. Protection against data loss

  • A. I and II only
  • B. I and III only
  • C. II and III only
  • D. I, II and III
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40

Which of the following characteristics is associated with the architecture of parallel database?

  • A. Communication cost and problems cannot be ignored
  • B. Machines can be far from each other
  • C. Machines are physically close to each other
  • D. It is usually associated with shared-nothing architecture
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