Iron Systems Senior Software Engineer Interview Questions and Answers

Q1. How to list out relevant files from a folder which was updated in a given time period
Ans. 
Use a script to list relevant files updated within a given time period in a folder
• Use a scripting language like Python or Bash to iterate through files in the folder

• Check the last modified timestamp of each file and compare it to the given time period

• Create a list of files that meet the criteria and display or output them
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Q2. How will you monitor if a system went down
Ans. 
I will use monitoring tools to receive alerts and notifications if a system goes down.
• Set up monitoring tools like Nagios, Zabbix, or Prometheus to track system health

• Configure alerts to be sent via email, SMS, or Slack when system goes down

• Implement automated scripts to restart services or systems if they fail

• Regularly check system logs for any error messages or warnings
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I was asked to design some classes and then extend the functionality to add more requirements while following SOLID principles

Q1. Reason for job change
Ans. 
Seeking new challenges and opportunities for growth
• Looking for a new challenge to expand my skills and knowledge

• Interested in working on cutting-edge technologies

• Seeking a more collaborative team environment

• Want to take on more leadership responsibilities
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Q2. Do you have any questions for us
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Q1. Data structure algorithm questions related to various scenarios
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Q2. DS Algo related questions which revolved around different scenarios
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Q1. Networking questions... Tcp handshake, osi layers, SSL etc
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Q1. Automation questions.. what you worked in previous projects
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Q1. Director round with normal questions
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Q1. Managerial round with basic managerial questions
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Q1. Salary discussion ... Basically they will not agree to what you demand
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Q1. Vp round with generel questions
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Generic dotnet questions mcq

Q1. .net, c# , sql , async questions
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One problem is given need to make logic and your current project details

Managerial round was taken at the end

Q1. Find the memory of the given structure (Struct padding is the hint)
Ans. 
The question asks to find the memory of a given structure by considering struct padding.
• Struct padding refers to the unused bytes added to align the members of a structure.

• To find the memory of a structure, we need to consider the size of each member and the padding added.

• The total memory of a structure is the sum of the sizes of its members and the padding.
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Q2. Write code to find the position of a number in a BST
Ans. 
Code to find the position of a number in a BST
• Implement a recursive function to traverse the BST

• Compare the target number with the current node value

• If the target is smaller, go to the left subtree; if larger, go to the right subtree

• Repeat until the target is found or the subtree is null
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Q3. Create a Trie data structure and perform insertion and search on it.
Ans. 
A Trie is a tree-like data structure used for efficient retrieval of strings. It supports insertion and search operations.
• A Trie is also known as a prefix tree.

• Each node in the Trie represents a character.

• The root node represents an empty string.

• Each node can have multiple children, each representing a different character.

• Insertion involves traversing the Trie and creating new nodes as needed.

• Search involves traversing...read more
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Q1. A string contains parenthesis, curly brackets and square brackets. Check if the string is valid or not.
Ans. 
Check if a string containing parenthesis, curly brackets, and square brackets is valid.
• Use a stack to keep track of opening brackets

• Pop from stack when encountering a closing bracket, ensuring it matches the corresponding opening bracket

• Return false if stack is not empty at the end
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Q1. Array Linked list BST
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Q1. Array LL BST Stack
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