Infosys Interview Questions (6+ Questions)
Last Updated: June 8, 2026 • 6 Questions • Real Company Interviews
Prepare for your Infosys interview with our comprehensive collection of 6+ real interview questions and detailed answers. These questions have been curated from actual Infosys technical interviews across various roles including DevOps Engineer, Data Engineer, QA Engineer, and more.
Table of Contents
- Release Locked Log File (medium) 🔒
- Route Subnet Through Gateway (medium) 🔒
- Sales Forecast Accuracy Evaluator (medium) 🔒
- Aggregate Review Sentiments (medium) 🔒
- Daily Login Count Aggregation (easy) 🔒
- Basic Link Navigation Testing (easy) 🔒
Our Infosys interview questions cover a wide range of technical topics and difficulty levels, from entry-level positions to senior roles. Each question includes detailed explanations and answers to help you understand the concepts and prepare effectively for your interview.
💡 Pro Tips for Infosys Interviews
- Practice each question and understand the underlying concepts
- Review Infosys's specific technologies and methodologies
- Prepare follow-up questions and edge cases
- Practice explaining your solutions clearly and concisely
Interview Questions & Answers
1. Release Locked Log File
Diagnose and resolve locked files in Linux by identifying processes holding file descriptors and releasing file locks safely. Learn how to use lsof and ps commands to find which process is preventing file modification, rotation, or deletion. This guide covers understanding file descriptor modes (read/write), gracefully restarting processes without full server restarts, implementing SIGHUP-based log reopening, and preventing disk space emergencies. Essential for troubleshooting log rotation failures, resolving "resource busy" and "text file busy" errors, and managing file access conflicts in production environments.
2. Route Subnet Through Gateway
Configure Linux static routes for multi-interface networks and ensure persistent routing across reboots. Learn how to add static routes for specific subnets via alternate gateways, verify routing table entries, and configure netplan/systemd-networkd for persistent routes. This guide covers managing default and specific routes, understanding next-hop gateways, testing route behavior, and implementing configuration management for consistent network topology. Essential for multi-datacenter setups, hybrid cloud environments, and ensuring traffic takes the correct network path in complex topologies.
3. Sales Forecast Accuracy Evaluator
Crafting the Perfect SQL Query for Forecast Accuracy Calculation
When it comes to assessing the forecast accuracy for products based on forecasted and actual sales data, an optimized SQL query can provide precise insights. Below is a step-by-step approach to achieve the objective using SQL:
##...
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Detailed explanation and solution available for premium members.
4. Aggregate Review Sentiments
SQL Query Challenge: Finding Products with Reviews and Calculating Sentiment Scores
Objective
This SQL interview question aims to test your ability to aggregate and manipulate data from a table. Specifically, you are required to write an SQL query that identifies products with at least thr...
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Detailed explanation and solution available for premium members.
5. Daily Login Count Aggregation
SQL Query to Determine the Number of Logins for Each Day
Objective
To write an SQL query that counts the number of user logins for each day and returns the results with two specific columns: day (the date in 'YYYY-MM-DD' format) and login_count (the total number of logins on that day)....
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Detailed explanation and solution available for premium members.
6. Basic Link Navigation Testing
Master basic link navigation testing with Selenium. Learn simple element finding and click validation techniques for beginners....
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Detailed explanation and solution available for premium members.
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