CS614 Solved Quiz 1 by VUBuddy

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CS614 QUIZ 1 SOLVED

1. incorporates the concept of product quality, process control, quality assurance, and quality improvement.

a) Total Quality Management

b) Intrinsic Data Quality Management c) Realistic Data Quality Management d) Strong Data Quality Management

Q2. The extent to which data is in appropriate languages, symbols and units, and the definitions are clear is known as .

1. Interpretability
2. Uniqueness
3. Accessibility
4. Consistency

Correct answer: Interpretability

Q3. The degree to which values are present in the attributes that require them is known as

1. Completeness
2. Uniqueness

Correct answer: Completeness

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c) Accessibility d) Consistency

Q4. The dimension represents data correctness.

1. Free-of-error
2. Completeness
3. Consistency
4. Correctness

Correct answer: Free-of-error

Q5. In B-tree index, the lowest level index blocks are called leaf blocks, and these blocks contain:

1. NULL value to make the leaf terminal node
2. Every indexed data value and a corresponding
3. Every indexed data value and pointer to next level block
4. Every indexed data value and pointer to root block

Correct answer: Every indexed data value and a corresponding

Q6. Data is the on which a Data Warehouse (DWH) runs.

1. Fuel
2. Element
3. Component
4. Entity

Correct answer: Fuel

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Q7. In context of data parallelism to get a speed-up of N with N partitions, it must be ensured that:

1. There are enough computing resources
2. Query-coordinator is very fast as compared to query servers
3. Work done in each partition almost same
4. All of the given options

Correct answer: All of the given options

Q8. Which of the following is not an activity of Data Quality Analysis Project?

1. "Define"
2. "Measure"
3. "Analyze"
4. Compression

Correct answer: Compression

Q9. Which of the following is not a Data Quality Validation Technique?

1. Referential Integrity
2. Using Data Quality Rules
3. Data Histograming
4. Indexes

Correct answer: Indexes

10. One of the preconditions to decide about operations to be parallelized is that