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Database Administrator Interview Questions

"Database administrators specialize in ensuring the safety of the client's data. Candidates should be well-versed in database design, security, and backup. Expect a technical-based interview that will test your ability to restore or find a file, manage databases, and increase the efficiency of a backup. Excellent organizational and communication skills will show that you are the right fit for maintaining the company's database."

Top Database Administrator Interview Questions & How to Answer

Question 1

Question #1: Tell me about your experience with AI.

How to answer
How to answer: Artificial intelligence is becoming more important in database administration. The hiring manager is assessing your skills in this area. Talk about data administration projects in which you used machine learning, developed an AI infrastructure, and deployed AI algorithms. If you have no on-the-job experience, talk about an industry event or a project you worked on independently that involved the use of AI.
Question 2

Question #2: A senior colleague disagrees with you. How do you handle this?

How to answer
How to answer: A database administrator must collaborate with IT professionals, such as data analysts and senior managers, to administer the database and ensure data accessibility. Show the hiring manager that you can work effectively in a team, resolve conflicts, and communicate persuasively with your answer. Provide a strategy involving a series of behavioral steps. Develop your strategy in advance, ask a professional contact for feedback on it, and revise it if necessary before your interview.
Question 3

Question #3: Tell me about your experience managing cloud data.

How to answer
How to answer: More companies are migrating their on-site databases to the cloud, and the hiring manager wants to know whether you have the skills to operate a cloud-based database. Provide expertise examples in this area. For example, talk about working with specific cloud storage systems, such as AWS; transitioning on-site company data to enterprise cloud; managing and securing cloud data; and improving how data interacts with distributed apps.

3,443 database administrator interview questions shared by candidates

Tell me about yourself? Your role as a DBA? Your Day to Day activities? What is difference between oracle SID and Oracle service name? Oracle SID is the unique name that uniquely identifies your instance/database where as the service name is the TNS alias can be same or different as SID. What are the steps to install oracle on Linux system? List two kernel parameter that effect oracle installation? Initially set up disks and kernel parameters, then create oracle user and DBA group, and finally run installer to start the installation process. The SHMMAX & SHMMNI two kernel parameter required to set before installation process. What are bind variables? With bind variable in SQL, oracle can cache queries in a single time in the SQL cache area. This avoids a hard parse each time, which saves on various locking and latching resource we use to check object existence and so on. What is the difference between data block/extent/segment? A data block is the smallest unit of logical storage for a database object. As objects grow they take chunks of additional storage that are composed of contiguous data blocks. These groupings of contiguous data blocks are called extents. All the extents that an object takes when grouped together are considered the segment of the database object. What is the difference between PGA and UGA? When you are running dedicated server then process information stored inside the process global area (PGA) and when you are using shared server then the process information stored inside user global area (UGA). What is SGA? Define structure of shared pool component of SGA?
avatar

Senior Oracle Database Administrator

Interviewed at Wipro

3.6★
Jul 1, 2018

Tell me about yourself? Your role as a DBA? Your Day to Day activities? What is difference between oracle SID and Oracle service name? Oracle SID is the unique name that uniquely identifies your instance/database where as the service name is the TNS alias can be same or different as SID. What are the steps to install oracle on Linux system? List two kernel parameter that effect oracle installation? Initially set up disks and kernel parameters, then create oracle user and DBA group, and finally run installer to start the installation process. The SHMMAX & SHMMNI two kernel parameter required to set before installation process. What are bind variables? With bind variable in SQL, oracle can cache queries in a single time in the SQL cache area. This avoids a hard parse each time, which saves on various locking and latching resource we use to check object existence and so on. What is the difference between data block/extent/segment? A data block is the smallest unit of logical storage for a database object. As objects grow they take chunks of additional storage that are composed of contiguous data blocks. These groupings of contiguous data blocks are called extents. All the extents that an object takes when grouped together are considered the segment of the database object. What is the difference between PGA and UGA? When you are running dedicated server then process information stored inside the process global area (PGA) and when you are using shared server then the process information stored inside user global area (UGA). What is SGA? Define structure of shared pool component of SGA?

Technical, Process related It was good. interview was mainly related to process. DBA task, responsibility It was good. interview was mainly related to pIt was good. interview was mainly related to process. DBA task, responsibilityrocess. DBA task, responsibility
avatar

Database Administrator

Interviewed at Wipro

3.6★
Nov 7, 2015

Technical, Process related It was good. interview was mainly related to process. DBA task, responsibility It was good. interview was mainly related to pIt was good. interview was mainly related to process. DBA task, responsibilityrocess. DBA task, responsibility

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