HCLTech Oracle Database Administrator Interview Questions and Answers

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
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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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Q1. About your previous experience and salary. They want to check how much stable you are
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Q1. They will ask you about the basic concepts of related domain.
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Q2. What is the new features of new version
Ans. 
New version has improved security, performance and automation features.
• Improved security with new encryption algorithms and secure password management

• Enhanced performance with in-memory column store and advanced indexing

• Automation features like automatic data optimization and automatic storage management

• New features for database management like JSON support and sharding

• Cloud integration with Oracle Cloud Infrastructure
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Q1. They will ask in deep practical things. Like about Oracle .. What have you done challanging today. What was last error you seen in Alert log. Import export Rman Golden gate Rac Data guard Patching
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Q1. Final discussion with Hr for salary negotiation and joining dates etc
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Q1. What is checkpoint in oracle
Ans. 
Checkpoint is a process in Oracle that writes dirty buffers from the buffer cache to data files.
• Checkpoint is triggered by various events like log switch, manual checkpoint, etc.

• It ensures that all committed data is written to disk and the database can be recovered in case of a crash.

• Checkpoint writes all dirty buffers from the buffer cache to data files.

• It also updates the control file and data file headers to indicat...read more
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Q2. What is oracle database
Ans. 
Oracle database is a relational database management system developed by Oracle Corporation.
• It is a software system used to manage and store data.

• It uses Structured Query Language (SQL) to manage data.

• It is widely used in enterprise applications.

• It provides features like data security, backup and recovery, and scalability.

• Examples of Oracle database applications include online banking systems, airline reservation system
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Q3. Database is a collection of a data treated as a unit.
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Database architecture

Q1. Upgradation and Migration
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Q2. Rac and DataGuard
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Q3. Patching steps opatch
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Q4. Golden gate concepts
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Q1. Salary discussed
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Q2. Last company information
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