Zamp Software Development Engineer II Interview Questions and Answers

Duration: 2hrs
Platform: Hackerrank/Hackerearth
Type:DS/Algo (Graph, LinkedList, Array)

Q1. 1hr, DS/Algo, Behavorial
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Q1. 1hr, System Design, Behavorial
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Q1. Bar Raiser, DS/Algo, System Design, Behavorial
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Q1. Medium complex problems
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Q1. Medium complex problems
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Q1. System design questions
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Q1. Behavioural questions
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Online assessment. two LC medium questions. 90 minutes.

Q1. Four back-to-back 1 hour sessions with 1 hour lunch break. system design with the manager, LC medium-hard questions with the rest of the interviewers.
Ans. 
The interview consists of four back-to-back 1 hour sessions with 1 hour lunch break, including system design with the manager and LC medium-hard questions with the rest of the interviewers.
• Prepare for system design questions with the manager by understanding scalability, reliability, and performance considerations.

• Practice solving LC medium-hard questions to showcase problem-solving skills and algorithmic knowledge.

• Tak...read more
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Q1. Gas station problem
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Gas station problem
• The gas station problem involves finding the minimum starting point from where a circular route can be completed without running out of gas.

• The solution can be obtained using the concept of cumulative sum and tracking the minimum sum encountered.

• If the total sum of gas is greater than or equal to the total sum of cost, a solution exists.

• If there are multiple valid starting points, return the one with
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Q2. Max area in the histogram
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Find the maximum area in a histogram.
• Iterate through the histogram and calculate the area for each bar.

• Keep track of the maximum area encountered so far.

• The area of a bar is calculated by multiplying its height with the width (number of consecutive bars) it can extend to.

• Consider using a stack to efficiently calculate the area for each bar.
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Q1. Simplify path problem
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The Simplify path problem involves simplifying a given absolute path to its canonical form.
• Use a stack to keep track of the directories in the path.

• Split the path by '/' and process each directory.

• Ignore empty directories and '.'.

• If encountering '..', pop the top directory from the stack.

• Join the remaining directories in the stack to form the simplified path.
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Q2. N-ary tree DFS problem
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The question is about solving a problem related to N-ary tree using Depth First Search (DFS).
• Understand the concept of N-ary tree and Depth First Search (DFS)

• Implement the DFS algorithm to traverse the N-ary tree

• Handle the tree nodes and perform necessary operations during traversal
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Q1. LLD round with design patterns
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Q2. Leadership principle discussion
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Q1. HLD round for notification system
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Q2. Leadership principle discussion
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Q1. Intervals related question is asked
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Q1. Low level design for a product including designing classes and database
Ans. 
Designing classes and database for a product
• Identify the entities and relationships in the system

• Create a class diagram with attributes and methods

• Design the database schema with tables and relationships

• Consider performance, scalability, and security

• Use appropriate design patterns and principles
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Medium level DSA problems related to tree and arrays.

Q1. High level design for 3 products
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High level design for 3 products
• Identify user needs and requirements

• Create a conceptual design for each product

• Define the architecture and components

• Consider scalability, security, and performance

• Document the design and review with stakeholders
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Medium level DSA problem and leadership principles situational questions.