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Einfochips Software Engineer Interview Questions and Answers

Updated 20 Feb 2025

Q1. 1) What is Pointer use of it 2) Reverse Link list 3) String concatenation 4) Communication protocols i2c v/s SPI 5) IPC mechanism 6) Dynamic memory allocation related questions

Ans.

Pointer is a variable that stores the memory address of another variable. Used for dynamic memory allocation and accessing data structures.

  • Pointers are used to access and manipulate memory addresses directly.

  • Example: int *ptr; ptr = # *ptr = 10; // num now equals 10

  • Reverse Link list: Reverses the order of nodes in a linked list.

  • String concatenation: Combining two or more strings into a single string.

  • Communication protocols i2c v/s SPI: I2C is slower but uses fewer pins, SPI i...read more

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Q2. What's the difference between React JS and React Native?

Ans.

React JS is a JavaScript library for building user interfaces on web browsers, while React Native is a framework for building mobile applications using React.

  • React JS is used for web development, while React Native is used for mobile app development.

  • React JS renders components to the DOM, while React Native renders components to native mobile elements.

  • React JS uses HTML and CSS for styling, while React Native uses StyleSheet for styling mobile apps.

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Q3. How to improve performance of React Native application?

Ans.

Improve React Native app performance by optimizing code, reducing unnecessary re-renders, using native modules, and implementing code splitting.

  • Optimize code by removing unnecessary dependencies and using efficient algorithms

  • Reduce unnecessary re-renders by using shouldComponentUpdate or React.memo

  • Use native modules for performance-critical tasks to leverage platform-specific optimizations

  • Implement code splitting to load only necessary components when needed

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Q4. What is memory in system

Ans.

Memory in a system refers to the storage space where data and instructions are temporarily stored for processing.

  • Memory is essential for the functioning of a computer system as it stores data and instructions that are currently being used by the CPU.

  • There are different types of memory in a system, such as RAM (Random Access Memory) and ROM (Read-Only Memory).

  • RAM is volatile memory that is used for temporary storage of data and instructions, while ROM is non-volatile memory th...read more

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Q5. explain uc architecture

Ans.

UC architecture stands for Unified Communications architecture, which integrates various communication tools into a single platform.

  • UC architecture combines voice, video, messaging, and collaboration tools into a unified platform.

  • It allows users to access all communication tools from a single interface.

  • Examples of UC architecture include platforms like Microsoft Teams, Cisco Webex, and Zoom.

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Q6. explain data structures in c

Ans.

Data structures in C are used to store and organize data efficiently.

  • Data structures in C include arrays, linked lists, stacks, queues, trees, and graphs.

  • They help in performing operations like insertion, deletion, searching, and sorting.

  • For example, an array is a data structure that stores a fixed-size sequential collection of elements of the same type.

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Q7. write c program

Ans.

A C program to print array of strings

  • Declare an array of strings

  • Initialize the array with strings

  • Use a loop to print each string in the array

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Q8. Sorting of array

Ans.

Sorting an array of strings in alphabetical order.

  • Use built-in sorting functions like sort() in most programming languages.

  • Consider case sensitivity when sorting strings.

  • You can also implement custom sorting algorithms if needed.

  • Example: ['apple', 'banana', 'cherry'] should be sorted as ['apple', 'banana', 'cherry'].

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Interview Process at Einfochips Software Engineer

based on 5 interviews
2 Interview rounds
Resume Shortlist Round
Aptitude Test Round
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