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Measures of Query Cost MCQ (Multiple Choice Questions) PDF Download
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The MCQ: For a query the evaluation plans can be; "Measures of Query Cost" App Download (Free) with answers: 1 only; 2 only; Multiple; 0; for online computer science degrees. Practice Measures of Query Cost Quiz Questions, download Google e-Book (Free Sample) for applied computer science.
Measures of Query Cost MCQs PDF: Questions Answers Download
Tin the query-evaluation plan, the response time is merely dependent on the contents of the
- Queue
- Disk
- Buffer
- Pipeline
For a query the evaluation plans can be
- 1 only
- 2 only
- Multiple
- 0
In the query-evaluation plan, the wall-clock time required to execute the plan is called the
- Response time
- Latency time
- Queuing time
- Buffer time
Instead of minimizing the response time, optimizers can minimize a query plan's
- Disk usage
- Resource consumption
- Pipeline size
- Indices length
The cost of evaluation of query can be measured in terms of different resources, disk accesses and
- CPU time
- Distributed or parallel database system
- Cost of communication
- All of the above
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