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Microsoft SQL Server Certification Practice Test

This practice test evaluates your knowledge of Microsoft SQL Server core concepts and administration skills. It covers query optimization, database design, security, backup strategies, and performance tuning\u2014essential topics...

Questions: 15 | Attempts: 10 | Last updated: Jul 15, 2026

Sample Question 1
Which isolation level prevents dirty reads but allows phantom reads?

READ UNCOMMITTED

READ COMMITTED

REPEATABLE READ

SERIALIZABLE

Sample Question 2
What is the primary purpose of a clustered index in SQL Server?

Sort and store data rows based on the index key

Create a logical reference to data without physical reordering

Improve performance of JOIN operations only

Enforce uniqueness constraints exclusively

Sample Question 3
Which T-SQL statement is used to create a backup of a database?

RESTORE DATABASE

BACKUP DATABASE

CREATE BACKUP

COPY DATABASE

Microsoft SQL Server Certifications Quizzes, Questions & Answers

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