Role
Database Administrator
Real interview questions with expert answers, plain-English explanations, and practical examples. (14 questions)
Deloitte
Database Administrator
Databases
A Deloitte client needs to store and query complex hierarchical data, like an organizational chart or product catalog. How would a database administrator design the schema and choose appropriate techniques to efficiently manage and query this data, ensuring referential integrity and performance?
IBM
Database Administrator
Performance Optimization
An IBM enterprise application’s database is experiencing performance issues. How would a database administrator optimize its existing schema and complex queries to improve overall system responsiveness?
VMware
Database Administrator
Databases
A VMware client is designing a new high-transaction application. How would a Database Administrator optimize the database schema for scalability, performance, and maintainability, considering normalization and indexing strategies?
ServiceNow
Database Administrator
Performance Optimization
A critical ServiceNow production database is experiencing intermittent performance degradation. How would a Database Administrator diagnose the root causes and implement a comprehensive optimization strategy?
Microsoft
Database Administrator
Databases
A critical Microsoft application handles complex financial transactions. How would a Database Administrator ensure data consistency and concurrency using transaction isolation levels?
Intuit
Database Administrator
Performance Optimization
An Intuit financial application’s critical query is consistently slow. How would a Database Administrator diagnose and optimize its performance?
Honeywell
Database Administrator
Performance Optimization
A Honeywell database is experiencing frequent deadlocks during peak hours. How would a Database Administrator diagnose, prevent, and mitigate these concurrency issues?
Oracle
Database Administrator
Security
As an Oracle Database Administrator, how would you secure a critical production database environment from common threats and ensure data integrity?
Salesforce
Database Administrator
Performance Optimization
A critical database query is consistently slow. How would a Database Administrator diagnose the root cause and implement an index-based solution?
VMware
Database Administrator
Performance Optimization