Techme24x7 Oracle Database Administrator Interview Questions and Answers

Q1. How do you set up ha and Dr in your environment?
Ans. 
Setting up HA and DR involves configuring high availability and disaster recovery solutions to ensure data availability and continuity.
• Implementing clustering and failover mechanisms for high availability

• Setting up replication and backup strategies for disaster recovery

• Testing failover and disaster recovery procedures regularly

• Utilizing technologies like Oracle Data Guard for DR solutions
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Q1. Dataguard architecture
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Q2. Rman backup and restoration
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Q1. Why you join inm
Ans. 
I joined inm because of the company's reputation for innovation and growth in the tech industry.
• Attracted to company's reputation for innovation

• Excited about opportunities for growth in tech industry

• Impressed by company culture and values
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Q1. How would you monitor a db performance with OEM AWR report?
Ans. 
Monitoring db performance using OEM AWR report
• Access OEM console and navigate to Performance tab

• Select AWR report option to generate a report

• Analyze the report for key performance metrics like CPU usage, memory utilization, I/O stats

• Identify any performance bottlenecks and take necessary actions to optimize db performance
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Q1. Why this company
Ans. 
I am impressed by the company's innovative technology solutions and strong reputation in the industry.
• The company has a track record of developing cutting-edge technology solutions.

• I admire the company's commitment to excellence and continuous improvement.

• The company's reputation for providing top-notch training and development opportunities is appealing to me.
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Q2. What salary do you expect
Ans. 
I expect a competitive salary based on my experience, skills, and the market rate for Oracle Database Administrators.
• Research the average salary range for Oracle Database Administrators in your area

• Consider your level of experience and skills when determining your salary expectations

• Be prepared to negotiate based on the specific responsibilities and benefits offered by the employer
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Problem solving based question

Q1. Basic on location shift jobs etc
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Q1. Networking database Linux windows
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Q1. Tell me something about yourself
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Q2. What is your current ctc
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Q1. About oracle database functionality
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Q1. Salary discussion
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Q1. What are stored procedures?
Ans. 
Stored procedures are precompiled database objects that can be called by applications to perform a specific task.
• Stored procedures are written in SQL or PL/SQL

• They can accept input parameters and return output parameters

• They can be used to encapsulate business logic and improve performance

• Examples include procedures for inserting, updating, and deleting data

• They can also be used for complex data manipulation and report
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Q2. Why is indexing required
Ans. 
Indexing is required to improve the performance of database queries.
• Indexing helps in faster retrieval of data from the database.

• It reduces the number of disk I/O operations required to fetch data.

• Indexes are created on columns that are frequently used in WHERE clauses or JOIN conditions.

• Examples of indexes include B-tree, bitmap, and hash indexes.
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Define schema for a simple book store