Iron Systems Project Manager Operations Interview Questions and Answers

It includes two DSA questions and some aptitude questions

Q1. Introduce yourself
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Q2. Give the maximum element at any point of time for after pop and push
Ans. 
Implement a stack that can return the maximum element efficiently after push and pop operations.
• Use a secondary stack to keep track of maximum values.

• On push, compare the new element with the current maximum and push the greater one onto the max stack.

• On pop, if the popped element is the current maximum, pop from the max stack as well.

• Example: Push 3, 5, 2. Max stack: [3, 5]. Pop 5. Max stack: [3].

• This allows O(1) time...read more
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Q3. Reverse a string
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Q1. Introduce yourself
Ans. 
I'm a passionate software developer with a strong background in full-stack development and a love for solving complex problems.
• Education: Bachelor's degree in Computer Science from XYZ University.

• Experience: 3 years of experience in web development using React and Node.js.

• Projects: Developed an e-commerce platform that increased sales by 30%.

• Skills: Proficient in JavaScript, Python, and SQL.

• Interests: Enjoy contributin...read more
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Q2. Get the maximum at any point during push and pop operation in stack
Ans. 
Implement a stack that tracks the maximum value during push and pop operations.
• Use an auxiliary stack to keep track of maximum values.

• On push, compare the new value with the current maximum and push the greater one onto the max stack.

• On pop, if the popped value is the same as the top of the max stack, pop from the max stack as well.

• Example: Push 5, max is 5; Push 3, max is 5; Push 7, max is 7; Pop 7, max is 5.
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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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Basic coding questions

Q1. Core subjects like Operating System, Networking
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Q2. TCP, UDP protocols, working
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Q3. OSI, TC/IP working model
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Mcqs + 2 coding questions fairly easy one

Q1. Implement something which you donot know by researching
Ans. 
Implementing a neural network for image recognition
• Research different types of neural networks such as Convolutional Neural Networks (CNNs) and Recurrent Neural Networks (RNNs)

• Study how to preprocess image data and feed it into the neural network

• Learn about popular deep learning frameworks like TensorFlow or PyTorch

• Experiment with training a neural network on a dataset like MNIST for digit recognition
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Q1. Traversing the web pages which has links to other web pages in specific orders
Ans. 
Traversing web pages with links in specific orders requires web scraping and following the links recursively.
• Use web scraping tools like BeautifulSoup or Scrapy to extract links from web pages.

• Implement a recursive function to follow the links in specific orders (e.g. depth-first or breadth-first).

• Track visited pages to avoid infinite loops or revisiting the same pages.

• Handle errors and exceptions when accessing web pa...read more
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Q2. Heap implementation
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Easy to medium leetcode

Q1. Core fundamentals
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Q2. Networking, operating System
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Q1. Networking protocols
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Q2. Like UDP AND TCP TRAFFIC FLOW
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Q1. Salary discussion
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Q1. 1. C basics 2. Bitwise operators 3. Pointers 4. Embedded protocols 5. Linux Commands
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Consists of 3 sections: maths, english and C/C++ questions

Q1. Questions based on C/C++ coding.
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Q2. Sorting, recursion and other coding questions asked.
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Q1. What is your family background?
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Q2. Where do you see yourself in 5 years?
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Q3. Tell me about yourself.
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