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Database Systems MCQs – Practice Test 9 (Chapter 18)

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Query Processing MCQs – Practice Test 9 PDF Download

MCQ 41: Instead of minimizing the response time, optimizers can minimize a query plan's:

  1. Disk usage
  2. Resource consumption
  3. Pipeline size
  4. Indices length

MCQ 42: The basic steps involved in processing a query is of type:

  1. 2 types
  2. 3 types
  3. 4 types
  4. 5 types

MCQ 43: For subsequent use, the result of each evaluation is:

  1. Materialized
  2. Pipelined
  3. Modified
  4. Joined

MCQ 44: For optimization of a query, a query optimizer must know the:

  1. Evaluation plan
  2. Execution plan
  3. Query plan
  4. Cost plan

MCQ 45: The pipeline type in which the system makes repeated requests for tuples from the operation at the top of the pipeline is known as:

  1. Producer-driven pipeline
  2. Demand-driven pipeline
  3. Blocking pipeline
  4. Double pipeline

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