JetSynthesys Software Engineer Interview Questions and Answers

Codechef easy level questions

Q1. Few domain related questions
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Q2. Virtual don vs actual Dom etc
Ans. 
Virtual DOM is a lightweight copy of the actual DOM used for efficient updates in web development.
• Virtual DOM is a concept used in web development to improve performance by minimizing actual DOM manipulations.

• Actual DOM refers to the real structure of the HTML elements on a webpage.

• Virtual DOM is a representation of the actual DOM in memory that gets updated when changes are made, and then efficiently updates the actua...read more
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Q3. Frontend related question as this was for frontend role
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Q1. Salary discussion
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Python slq apti path json sksa

Q1. Problem solving in python
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Q2. Solving problems in oython
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Q1. MCQ questions testing your knowing in aptitude, logical reasoning, English and speech.
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Q2. 2 basic programs which you could solve using Java.
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Q1. Basic questions related to Java like "Mention 2 OOPS concepts, their definition, advantages, difference between stack and array, etc."
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Q2. Execute a basic SQL query in online SQL compiler.
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Q3. Java program to find if an Array List contains duplicate elements using online Java compiler.
Ans. 
Java program to check for duplicate elements in an ArrayList of strings.
• Iterate through the ArrayList and use a HashSet to store elements as you go.

• If an element is already in the HashSet, it is a duplicate.

• Return true if duplicates are found, false otherwise.
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Q1. Surprisingly, the most difficult round by far. The HR asked in depth about my project, so don't include projects which you are not very in-depth with. Also asked me to introduce myself without mentioning g...read more
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Basic Apti , ex train ,speed work

From Leetcode questions

Q1. Related about real time java questions
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Data structures and algos

Q1. Real time scenarios from resume
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Q2. System design and architecture
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Questions based or percentage, profit loss, ratio

Q1. Explain about stacks
Ans. 
Stacks are a data structure that follows the Last In First Out (LIFO) principle.
• Elements are added and removed from the top of the stack

• Common operations include push (add element) and pop (remove element)

• Stacks can be implemented using arrays or linked lists

• Examples of stack usage include function call stack and undo/redo functionality in text editors
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Q2. To find middle number in the linked list
Ans. 
To find the middle number in a linked list.
• Traverse the linked list using two pointers, one moving twice as fast as the other.

• When the fast pointer reaches the end, the slow pointer will be at the middle node.

• If the linked list has even number of nodes, there will be two middle nodes. Return either one.
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Q1. Introduction , hobbies, goals
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Q2. Strength, weakness, short term and long term goals
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