FYERS Securities Software Engineer2 Interview Questions and Answers

Q1. Technical question regarding js
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Q1. Behaviour of js
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JavaScript is a dynamic programming language commonly used for web development.
• JavaScript is a high-level, interpreted language.

• It is known for its flexibility and ability to manipulate the DOM.

• Commonly used for client-side scripting in web development.

• Supports object-oriented, imperative, and functional programming styles.
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Q2. Call by value, call by reference
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Reverse fibonacci using recursion

IT was for 2hr basic question where ask from differe programing language

Q1. Question where base on your resume
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Q1. DSA question ,oops,DBMS
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Basic aptitude questions and 2 hard DP questions in the Online Test .

Q1. Basic SQL queries
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Q2. OOP questions Java
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Q3. Puzzles from Geeksforgeeks
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Q4. DSA questions - medium level
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Q1. Sql vs non sql difference
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SQL is a relational database management system while NoSQL is a non-relational database management system.
• SQL databases are structured and use tables with predefined schema while NoSQL databases are unstructured and use collections or documents.

• SQL databases use SQL language for querying and managing data while NoSQL databases use various query languages like MongoDB's query language.

• SQL databases are vertically scalab...read more
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Q2. Explain critical section and solution to critical section
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Critical section is a code segment that should not be executed by multiple threads simultaneously. Solution is to use synchronization techniques.
• Critical section is a part of code that should be executed by only one thread at a time

• Multiple threads accessing critical section can lead to race conditions and data inconsistency

• Synchronization techniques like locks, semaphores, and monitors can be used to ensure mutual exc...read more
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Q3. 2 dsa questions which were of dynamic programming
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Q1. First give introduction
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Q2. They asked about family background
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Q3. Some basic hr questions
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Q1. Hoisting, clousres, prototypes based output questions
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Q2. Polyfill of reduce, map
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Polyfill of reduce, map are functions that mimic the behavior of the original functions in older browsers.
• Polyfill of reduce function can be implemented using a for loop to iterate over the array and accumulate the result.

• Polyfill of map function can be implemented using a for loop to iterate over the array and create a new array with the transformed values.

• These polyfills are useful for ensuring cross-browser compatib...read more
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Q1. Project discussion, react lifecycle, javascript basec concepts
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