Measures of Query Cost MCQs Test Online PDF Download

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Learn query processing practice test MCQs: for a query evaluation plans can be, for free online courses with options 1 only, 2 only, multiple, 0 for online bachelor degree in computer science. Free skills assessment test is for online e-learning measures of query cost quiz questions for competitive assessment in computer science major.

MCQ on Measures of Query Cost Quiz PDF Download

MCQ: Tin query-evaluation plan, response time is merely dependent on contents of the

  1. Queue
  2. Disk
  3. Buffer
  4. Pipeline

C

MCQ: For a query evaluation plans can be

  1. 1 only
  2. 2 only
  3. Multiple
  4. 0

C

MCQ: In query-evaluation plan, wall-clock time required to execute plan is called the

  1. Response time
  2. Latency time
  3. Queuing time
  4. Buffer time

A

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

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

B

MCQ: Cost of evaluation of query can be measured in terms of different resources, disk accesses and

  1. CPU time
  2. Distributed or parallel database system
  3. Cost of communication
  4. All of the above

D