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Database Systems MCQs (Computer Science) From Textbook

Database Systems MCQs – Mock Test 254

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Concurrent Transactions MCQs – Mock Test 254 PDF Download

MCQ 1266: Executing a transaction in isolation helps in preserving its:

  1. Atomicity
  2. Durability
  3. Consistency
  4. Reliability

MCQ 1267: For language constructs, the program fetches the query results one row at a time into the:

  1. While loop variable
  2. For loop variable
  3. Do loop variable
  4. For.. While loop variable

MCQ 1268: The explosive growth of the World Wide Web, was the major event of the:

  1. Late 1970s
  2. Early 1980s
  3. 1990s
  4. 2000s

MCQ 1269: The weak entity set associated with the identifying entity set, is said to be its:

  1. Dependent
  2. Existence dependent
  3. Validation dependent
  4. Deficient dependent

MCQ 1270: The total participation of an entity in a relationship set in an E-R diagram can be represented by:

  1. Square
  2. Double Lines
  3. Dashed lines
  4. Lines

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