Experience Level
3-5 Years
Real interview questions with expert answers, plain-English explanations, and practical examples. (200 questions)
Mphasis
QA Engineer
CI/CD
How would a QA engineer effectively integrate automated testing into a CI/CD pipeline, and what are the key benefits?
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?
Mphasis
Cloud Engineer
Message Queues
When designing a cloud-native microservices architecture, how would you choose the appropriate message queue technology (e.g., Kafka, RabbitMQ, SQS/SNS), and what considerations guide your decision?
ServiceNow
QA Engineer
Security
How would a QA engineer approach security testing for common web vulnerabilities like XSS and SQL Injection, and what methods and tools are essential?
ServiceNow
Mobile Developer
Performance Optimization
A user reports slow loading and janky scrolling in your mobile app. How would you diagnose and resolve these performance issues?
IBM
AI Engineer
Performance Optimization
Given a deployed AI/ML model with high inference latency, how would you approach optimizing its performance for real-time predictions?
Deloitte
Network Engineer
Security
Explain the differences between an IDS and an IPS, and how would a network engineer deploy and configure both to enhance enterprise network security?
Deloitte
Network Engineer
Networking
Explain the differences between layer 4 and layer 7 load balancing, and when would a network engineer choose each?
ServiceNow
Full Stack Developer
Authentication & Authorization
When building a new full-stack web application, how would you choose between different authentication and authorization strategies, and what are the key considerations?
Zomato
Data Engineer
Performance Optimization