Anyone Home System Engineer Interview Questions and Answers

Questions from trees and linkedin

Q1. Question on dsa and on oops
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Q2. Reverse linked list with multiple approach
Ans. 
Reverse a linked list using multiple approaches.
• Iterative approach: Use three pointers to reverse the links between nodes.

• Recursive approach: Recursively reverse the rest of the list and adjust the links.

• Stack approach: Push all the nodes onto a stack and then pop them to create the reversed list.
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It was 2 coding questions of medium level

Q1. Longest substring with non repeating characters
Ans. 
Find the longest substring in a given string that does not contain any repeating characters.
• Use a sliding window approach to iterate through the string.

• Keep track of the characters seen so far using a set.

• Update the start and end indices of the window to find the longest substring.

• Return the length of the longest substring.
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Q2. Candy problem. There is similar question in geeks for geeks
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Medium level array question was asked on hackerrank.

Q1. Simple string question was asked which required a little thinking and simple implementation.
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Q1. This was a coding round. I was given a screenshot which has dropdowns in it and I had to make the UI of it using react.js
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2 hours coding round, only 1 person out of 90 cleared

Q1. Asked loads of dsa, super technical questions
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Group Discussion (GD) and Human Resources (HR) questions:

GD Questions

1. Should artificial intelligence replace human jobs?


2. Social media: A boon or bane?


3. Is climate change an overrated issue?



HR Questions

1. Tell me about yourself.


2. What are your strengths and weaknesses?


3. Why should we hire you?

Aptitude consisted of basic quant questions, followed by technical concepts related OOP, .net, java and SQL.

Q1. Introduction, followed by a discussion on the topics you mentioned in your resume to check your communication skills.
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Q1. OOPs concepts followed by SQL questions, then some project-related discussion.
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Q1. Managerial Round, a few tables and scenarios were given, and was asked to write the queries to pull the data.
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Q1. Again a general discussion, expectations and if I'm happy with the tech on which I will be working.
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2 coding question for 60 mins. One array based question and one string based question.

Q1. Oops 2 pillars with examples ?
Ans. 
Oops 2 pillars are Abstraction and Encapsulation.
• Abstraction: Hiding unnecessary details and showing only relevant information. Example: Car dashboard displaying speed without showing internal engine details.

• Encapsulation: Bundling data and methods that operate on the data into a single unit. Example: Class in object-oriented programming encapsulates data and methods.
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Q2. Inheritance and it's types with examples ?
Ans. 
Inheritance is a concept in object-oriented programming where a class inherits properties and behaviors from another class.
• Types of inheritance: single inheritance, multiple inheritance, multilevel inheritance, hierarchical inheritance

• Single inheritance: a class inherits from only one parent class. Example: class Dog inherits from class Animal

• Multiple inheritance: a class inherits from multiple parent classes. Example:...read more
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Basic MCQS related to sql, basic coding

Q1. Describe the projects worked on during college
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