Xicom Technologies Mern Full Stack Developer Interview Questions and Answers

Q1. Aura related questions
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Q1. Why are you looking for a change?
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Q2. Share details of your previous job.
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Q1. What are oops concepts in java, explain real time scenario
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Q2. Uses of interface, inheritance
Ans. 
Interfaces define contracts for behavior, while inheritance allows for code reuse and polymorphism.
• Interfaces allow for loose coupling and abstraction, enabling multiple implementations of the same behavior.

• Inheritance allows for code reuse and extension of existing classes, reducing code duplication.

• Polymorphism allows objects of different classes to be treated as if they were of the same class, simplifying code and i...read more
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Q3. SQL query for join of tables
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Q4. Java concepts used in your project
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Q5. Overloading vs overriding, practical uses
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Very easy roundand is it a program to implement Parallel Merge Sort and can measure the performance

Coding and decoding reasoning for the shield season is over now I am not sure

Q1. Linked list question to detect cycle
Ans. 
Detecting a cycle in a linked list using Floyd's Tortoise and Hare algorithm.
• Use two pointers: slow and fast. Slow moves one step, fast moves two steps.

• If there's a cycle, slow and fast will eventually meet.

• If fast reaches the end (null), there's no cycle.

• Example: In a list 1 -> 2 -> 3 -> 4 -> 2 (cycle), slow and fast meet at 2.
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Q2. Basic questions from JS
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Q1. Some questions related to my projects
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Q2. Some Questions related to my past experience
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Q1. Map reduce filter in javascript
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Map, reduce, and filter are higher-order functions in JavaScript used to manipulate arrays.
• Map: Transforms each element in an array and returns a new array with the transformed elements.

• Reduce: Reduces an array to a single value by applying a function to each element.

• Filter: Creates a new array with elements that pass a certain condition.
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Q2. Exception handling
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Logical reasoning and Aptitude

Functions with Pointers and strings concepts

Q1. Mainly on Pointers and Dynamic Memory Allocation of 2-D Array
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Q2. Structure Padding and Packing
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Q1. What is interface ?
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Q2. Hat is encapsulation
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Encapsulation is the concept of bundling data and methods that operate on the data into a single unit.
• Encapsulation helps in hiding the internal state of an object and restricting access to it.

• It allows for better control over the data by preventing direct access from outside the class.

• Encapsulation promotes code reusability and makes the code easier to maintain.

• Example: In a class representing a car, the variables lik...read more
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10 apti questions and 10 technical mcq on cpp

Q1. Oops concept question
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Q2. Sql queries on join
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