Stanza Living Software Development Engineer 1 Interview Questions and Answers

There were 2 DSA questions.
One was a variation of Kadane's Algorithm and the other one was related to binary trees.

Q1. All CS Fundamentals(OOPS, OS, DBMS, CN)
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Q2. Find binary tree if preorder and postorder is given.
Ans. 
To find binary tree from preorder and postorder, use recursion and divide the arrays into left and right subtrees.
• Create a binary tree node using the first element of preorder array

• Find the root node's index in postorder array

• Divide the arrays into left and right subtrees recursively
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Q3. Discussion about the OA questions.
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Q1. Projects Discussion and Resume Discussion, some CS questions.
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Q2. Word Break question from Leetcode.
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Q3. Some questions on sorting techniques.
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2 standard DSA question for 1 hour time

1 hr coding text on hackerearth

Q1. Cannot disclose
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Q1. Cannot disclose
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Q1. Given 2 large numeric comma seperated strings. You need to calculate their sum along with maintaining the correct position of commas. Example Test Case - s1 - "123,456,788" s2 - "1" output - "123,456,789"...read more
Ans. 
Calculate sum of large numeric comma separated strings without converting to integers.
• Split the strings by comma to get individual numbers

• Iterate from right to left and add digits, carrying over if necessary

• Maintain correct position of commas in the output string
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Q1. It was Low Level Design Round. Question - Design a file system just like google drive. Functional Requirements - i) It should have functionality of file uploading, downloading, sharing. ii) Need to handle...read more
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Q1. It was Hiring Manager round and it tested my knowledge over HLD & LLD. Tell me about the most challenging project which you did till now. Follow Up Questions - i) Draw HLD & write LLD of it. ii) How muc...read more
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Q2. What all initiatives I have taken in my career?
Ans. 
I have taken various initiatives in my career to improve processes and drive innovation.
• Led a team to implement a new agile development process, resulting in faster delivery of products

• Introduced automated testing tools to improve software quality and reduce manual effort

• Organized coding workshops for junior developers to enhance their skills and knowledge

• Initiated a mentorship program to help new hires acclimate to th
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Q3. How many microservices do I own & at what scale they handle the traffic?
Ans. 
I own 5 microservices that handle traffic at a scale of 10,000 requests per minute.
• I own 5 microservices

• They handle traffic at a scale of 10,000 requests per minute
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Q4. Tell me the incidents where you went beyond your limits for the work
Ans. 
I have consistently gone above and beyond in my work by taking on additional projects and working extra hours when needed.
• Volunteering to lead a high-priority project that required long hours and weekend work

• Staying late to troubleshoot and resolve a critical issue before a major deadline

• Taking on extra tasks to help a team member who was overwhelmed with their workload
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Q5. Why are you leaving your current organization?
Ans. 
Seeking new challenges and growth opportunities.
• Desire for career advancement

• Looking for new challenges

• Seeking better work-life balance

• Company restructuring or changes in management
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Q1. LRU Cache - how to tackle
Ans. 
LRU Cache is a data structure that maintains a list of items in order of most recently used to least recently used.
• Implement using a doubly linked list and a hashmap for efficient operations

• When an item is accessed, move it to the front of the list

• When the cache is full, remove the least recently used item from the end of the list
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Q2. LRU Cache implementation based on a real time system. How would the main work which will be called etc etc
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Easy level to Medium level

2 Easy questions of DSA

Q1. One DSA question
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Q2. Normal discussion about tech stack
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Q1. Tell about yourself
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Q2. Why do you want to join digit?
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Easy to medium questions, Questions on DSA and Node.js.

Q1. Valid parenthesis
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Q2. Three sum problem
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Q1. Machine coding on Order Management System
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Q2. Java related advance questions
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Q1. Healthy discussion on designing a system
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Q2. Managerial questions
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Q1. Scenario based questions like How did you handle a situation where your colleague was unresponsive on something
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Q2. Scenario based questions like What were the positive and constructive feedbacks you got from your manager
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