Data integrity checks in Testing Fundamentals - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is a data integrity check in software testing?

A data integrity check ensures that data is accurate, consistent, and reliable throughout its lifecycle in a system.

beginner

Why are data integrity checks important?

They prevent errors, data corruption, and loss, ensuring the system works correctly and users get trustworthy information.

intermediate

Name two common methods used for data integrity checks.

Checksums and validation rules are common methods to verify data integrity.

intermediate

What is a checksum and how does it help in data integrity?

A checksum is a calculated value from data that helps detect errors by comparing the original and current checksum values.

beginner

Give an example of a data integrity check in a real-life scenario.

When you transfer money online, the system checks that the amount sent matches the amount received to avoid mistakes.

What does a data integrity check primarily ensure?

A Data is backed up

B Data is encrypted

C Data is accurate and consistent

D Data is deleted after use

Data integrity checks focus on accuracy and consistency, not encryption or deletion.

Which method is commonly used to detect data corruption?

A Code review

B UI testing

C Load testing

D Checksum

Checksums help detect data corruption by comparing calculated values.

When should data integrity checks be performed?

A Continuously throughout data processing

B Only during software installation

C Only during initial data entry

D Never

Data integrity checks should happen continuously to catch errors anytime.

Which of the following is NOT a goal of data integrity checks?

A Improve user interface design

B Ensure data consistency

C Prevent data loss

D Detect data corruption

Improving UI design is unrelated to data integrity checks.

What happens if a data integrity check fails?

A The system ignores the error

B The data is flagged or corrected

C The software automatically updates

D The user is logged out

Failing checks usually trigger flags or corrections to fix data issues.

Explain what data integrity checks are and why they matter in software testing.

Think about how data must stay correct and reliable.

Describe common techniques used to perform data integrity checks and give an example.

Consider simple ways to verify data hasn’t changed unexpectedly.