Data Processing Data Validation and Quality

Question 1

Which data validation technique checks that a value falls within an acceptable range?

Accepted Answer

Range check

Answer

Format check

Answer

Presence check

Answer

Consistency check

Question 2

What is data integrity in the context of data processing?

Accepted Answer

Accuracy and consistency of data over its lifecycle

Answer

Speed of data retrieval

Answer

Size of the database

Answer

Number of records processed

Question 3

Which type of check verifies that required fields are not left empty?

Accepted Answer

Presence check

Answer

Range check

Answer

Type check

Answer

Length check

Question 4

What does a format check validate in data processing?

Accepted Answer

That data matches an expected pattern or structure

Answer

That data is within numeric limits

Answer

That data is unique across records

Answer

That data has been backed up

Question 5

Which term describes data that is incorrect, incomplete, or inconsistent?

Accepted Answer

Dirty data

Answer

Clean data

Answer

Normalized data

Answer

Indexed data

Question 6

What is the purpose of a checksum in data validation?

Accepted Answer

To detect errors introduced during data transmission or storage

Answer

To sort records alphabetically

Answer

To compress file sizes

Answer

To encrypt sensitive data