Was asked to diagram an order management system
Principal Engineer Interview Questions
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Program to reverse elements of an array with out using a new array
1.Program to convert uppercase char in given string to lowercase with appending that char with a special char. For this i tried writing code but he kept targetting me as i dont seem to know much as he knows according to him. 2.given an input field accepting number values from -2lakh to +2lakh range, how will i perform my manual testing for this i answered saying will divide my testdata into ranges and using boundry values i will proceed further testing. But for this he is expecting me to give answer for what is terminology for ranges(here its partition technique, which i failed to give). 3.provided root cause analysis done and narrowed down to issue on application how will i communitate with develper on this issue. for this i started saying that i will give a complete detail on env, domain, and steps to reproduce the issue, and there he stopped me and imposing have i ever looked into application logs in my total experience and questioning me on my working, for which i said that i do work on logs and know how to analyse exceptions occured on application, but he is not convinced that until he brought up word "log" i havent say that. which actually i havent finished my anwser yet. A very bad conversation i had till now. I didnt expected this from such a good company.
I was asked to invent a game and design an object to represent components of the game
Tell me about a difficult interaction with a client
Given some skeleton code with 1 field and 2 method declarations, I was asked to implement an LRU cache, in a shared editor.
Mostly general question about my background and whatever in my resume.
2 DSA problems for finding optimal solution WRT time and complexity. related to array and strings. .net core, c#, EF core,
None really. Pretty standard questions.
What are your personal strengths that make you a good candidate for this role?
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