Database Administration and SQL Online Test

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The Database Administration and SQL test assesses a candidate's knowledge of managing and administering database management systems to store and organize data, along with the knowledge of SQL.

It's an ideal test for pre-employment screening. A good database administrator needs to have knowledge of capacity planning, installation, configuration, database design, migration, performance monitoring, security, troubleshooting, as well as backup and data recovery along with the ability to write SQL queries for the purpose of database administering.

This online test requires candidates to answer multiple-choice and fill the blanks questions about various procedures required for database administration, and to write SQL queries that extract, combine, and manipulate data.

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Free Sample Questions for Database Administration and SQL Test

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Database Backups


Database Administration Backup New Public

Under a new database backup plan:

  • Full backups of the database are taken every 6 hours starting at 00:00.
  • Differential backups are taken every 1 hour starting at 01:00, except for intervals of 6 hours (when full backups are taken).
  • Transaction/redo log backups are taken every 30 minutes starting at 00:00. The transactional/redo log is reset/cleared after a backup is taken.

Due to a missed scenario during the testing phase, a development error in setting wrong query conditions resulted in the loss of all records from a table at 13:45, which had data prior to the implementation of the backup plan. All further backups were taken as per the mentioned schedule.

A diagram showing the backup schedules

Select all the ways to restore the database until 13:45.

(Select all acceptable answers.)



SQL Aggregation Select Public

Given the following data definition, write a query that returns the number of students whose first name is John.

TABLE students
   firstName VARCHAR(30) NOT NULL,
   lastName VARCHAR(30) NOT NULL



SQL Conditions Update Public

A table containing the students enrolled in a yearly course has incorrect data in records with ids between 20 and 100 (inclusive).

TABLE enrollments

Write a query that updates the field 'year' of every faulty record to 2015.

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Premium Questions for Database Administration and SQL Test

TestDome offers a premium questions library with 1000+ unique, hand-crafted questions whose answers can’t be found online. If you spot an answer somewhere online, we’ll give you a refund.

Covered Skills

Testing of these skills is covered in this pre-built test because they’re closely related. On our paid plan, you can easily create your own custom multi-skill tests.

Database Administration Indexes SQL Conditions Views Select Create Index Database Schema Performance Tuning Alter Table Constraints Create Table Aggregation Subqueries Ordering Bug Fixing Union Group by Update Insert Joins Left Join Right Join Delete SQL CASE CTE Server Clustering Database Normalization Database Logs
Recommended Job Roles

These are the job roles that we recommend for the Database Administration and SQL online test.

Database Administrator
SQL Developer

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