What type of relationship does a star schema have between a dimension and a fact table?

ETL Testing - Quiz(MCQ)

One-to-one

Many-to-Many

One-to-many

None of the above

Correct Answer : One-to-many

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The following operations are performed during database testing :

Testing the database verifies if the column has any missing data.

During database testing, data values in columns are verified to ensure they are valid.

Tests are conducted on databases to determine whether primary or foreign keys are maintained.

All of the above

Correct Answer : All of the above

Explanation :

The following operations are performed during database testing:

* Testing the database verifies if the column has any missing data.

* During database testing, data values in columns are verified to ensure they are valid.

* Tests are conducted on databases to determine whether primary or foreign keys are maintained.

A ____ compares the data between a source system and a target system without transforming the data in either system.

Value Compromise

Value Comparison

Value Contraction

Value Compression

Correct Answer : Value Comparison

Explanation : A value comparison compares the data between a source system and a target system without transforming the data in either system.

In database testing, the focus is on ensuring that data is ________.

Valid

Correct

Accurate

All of the above

Correct Answer : All of the above

Explanation : In database testing, the focus is on ensuring that data is accurate, correct, and valid.

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