Infosys Campus Interview

All four companies filter with an online test first and then interview the shortlist in one sitting, usually on video. TCS runs a single panel of three, a technical interviewer, a manager and an HR person, for twenty to forty minutes, with Digital and Prime candidates getting a noticeably harder technical section on data structures, object-oriented design and a project deep dive. Infosys usually fields one interviewer for twenty to thirty minutes who covers technical fundamentals, a coding or pseudocode question, puzzles and HR together; Specialist Programmer candidates face a second, harder coding discussion. Wipro's interview is a combined technical plus HR round of fifteen to thirty minutes after the NTH or Turbo test, with projects, programming basics and a written-communication check. Accenture's interview is light on algorithms and heavy on communication, pseudo-code reasoning, project understanding and fitment, with the Cognitive and Technical Assessment and the communication test already done. Patterns are as of recent drives and shift from year to year; package figures and service agreements in particular change, so verify them against the current offer letter. ExamPilot compresses the loop into a 17-minute panel: HR screen, a hiring-manager round with company-specific questions, a role or technical round in your chosen profile, a short STAR behavioural round and a closing on expectations, scored on role knowledge, problem solving, communication and attitude.

1. 1

   Pseudocode

   Read this pseudocode aloud and tell me the output: set x to 5, set y to 0, while x is greater than 0, add x to y and subtract 2 from x, then print y.

   What a strong answer covers

   Dry-run step by step: x takes values 5, 3 and 1 while y becomes 5, 8 and 9, then x becomes negative and the loop ends, so the output is 9. Say each iteration aloud. Avoid jumping to an answer or losing track of the loop condition.

2. 2

   Coding

   For the Specialist Programmer role: given an array of daily stock prices, how would you find the maximum profit from one buy and one sell?

   What a strong answer covers

   Track the minimum price seen so far and the best profit at each step in a single pass, giving linear time and constant space. Explain with a small example and handle the case where prices only fall. Avoid nested loops without improving them.

3. 3

   Puzzle

   Three switches outside a closed room control three bulbs inside. You can enter the room only once. How do you find which switch controls which bulb?

   What a strong answer covers

   Turn on the first switch for a few minutes, turn it off, turn on the second, then enter: the lit bulb is the second, the warm unlit bulb is the first, and the cold one is the third. Explain your reasoning aloud. Avoid only stating the answer without the logic.

4. 4

   SQL

   Write a SQL query in words to find the department with the highest average salary, and explain how GROUP BY and ORDER BY work here.

   What a strong answer covers

   Group employees by department, compute AVG of salary, order by that average descending and limit to one row, or use a subquery with MAX. Explain that GROUP BY creates one row per department and HAVING filters groups. Mention ties. Avoid confusing WHERE with HAVING.

5. 5

   Language depth

   In Java or Python, what happens when you compare two strings with double equals, and why can it surprise people?

   What a strong answer covers

   In Java, double equals compares references, so two equal strings may return false unless interned; equals compares content. In Python, double equals compares values while is compares identity. Give an example. Avoid giving the wrong rule for your claimed language.

6. 6

   Training

   Infosys freshers usually train at the Mysuru campus for a few months before project allocation. What do you expect from that training, and how will you prepare?

   What a strong answer covers

   Show awareness that training is intensive, includes assessments that must be cleared, and covers fundamentals and a technology stream. Mention preparation such as revising programming and DBMS. Avoid treating it as a holiday or being unaware that assessments matter.

7. 7

   Honesty

   Your resume says you built a machine-learning model for crop prediction. Which part did you not build yourself?

   What a strong answer covers

   Be honest about what you used from libraries or teammates, such as a public dataset or a pre-built model, and clearly state your own contribution like data cleaning or the web interface. Avoid overclaiming, as the interviewer can easily probe deeper.

8. 8

   Advanced coding

   For the Power Programmer track: a singly linked list may loop back on itself somewhere. Prove whether it does using only two pointers and no extra storage.

   What a strong answer covers

   Use Floyd's slow and fast pointer technique: if they meet, a cycle exists. Explain why it works, its linear time and constant space, and how to find the cycle start. Avoid using a hash set when the question says no extra memory.

9. 9

   Motivation

   Of the big four IT services firms, why is Infosys your first choice, and what role do you picture yourself in by 2029?

   What a strong answer covers

   Give a reason linked to Infosys specifically, such as its training model, digital work or a domain, and a realistic three-year path like becoming a strong developer or moving into a specialisation. Avoid generic answers or saying you plan to leave for higher studies soon.

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