IBM ISL Interview Experience

Written Test:
General:
18 questions from series. 18 questions from aptitudes. For each question there is a time of 135sec. You have to answer that question within given time slot. You can’t jump you have to go serially.
All are very simple questions.
Technical:
30 Questions to be answered in 40 minutes.
Questions mainly included

• Predict C program output (about 15 questions) 
• Few questions from C++, OOP concept.
• Few question from Operation systems, networking, and databases.
• One question on design pattern.

Note:
(GATE preparation is enough to answer all the questions, simple and straight question not tricky.)
Interview Question:
Round 1:

• Asked for my subject of interest. (Didn’t asked any question from there.)
• What is the best problem you have ever solved?
• Spiral programming code.
• UNIX syntax.
• ACID properties.
• SQL.
• Critical section problem.

Round 2:

• 2D matrix is given. Write a code to find the element 0 and replace the corresponding row and column with 0s.
• Design a table which will keep track of trains and the platforms in such a way that it can answer 
1. The number of train visit between two given stations.
2.  For a given train no what are stations it will stop?
3. You have to consider the junction also.
4. Data anomaly should not present.
5. For a station what are the train no which will stop and which will not stop in that station.

Note:
The number of interview and toughness of interview you will face depends on the marks you will get in the written exam. If you are in top 3 you have a great chance to crack the interview. The live coding may appear for you if you are not in top 3. So your fate in interview is written in your written exam.

Source: Dipanjan Roy(M.Tech(I.T.))