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Veltris React Native Developer Interview Questions and Answers
Veltris React Native Developer Interview Experiences
1 interview found
Selected
I applied via Naukri.com and was interviewed before Jan 2022. There were 3 interview rounds.
(2 Questions)
- Q1. Difference between Let, Var, Const
- Ans.
Let, Var, and Const are JavaScript keywords used for declaring variables with different scoping rules and mutability.
Var has function scope and can be redeclared and reassigned.
Let has block scope and can be reassigned but not redeclared.
Const has block scope and cannot be reassigned or redeclared.
Use const for values that won't change, let for values that will, and var for legacy code or global variables.
- Q2. Life Cycle of React-Native
- Ans.
React Native has several life cycle methods that are called at different stages of the component's life.
Mounting: constructor(), componentWillMount(), render(), componentDidMount()
Updating: componentWillReceiveProps(), shouldComponentUpdate(), componentWillUpdate(), render(), componentDidUpdate()
Unmounting: componentWillUnmount()
Error Handling: componentDidCatch()
(2 Questions)
- Q1. How to upload the app to both stores
- Ans.
To upload the app to both stores, create separate builds for each platform and follow the submission guidelines of each store.
Create separate builds for iOS and Android platforms
Follow the submission guidelines of the App Store and Google Play Store
Submit the builds to each store separately
Ensure that the app meets the requirements of each store
- Q2. Local Storage in React-Native
- Ans.
Local storage in React Native allows data to be stored on the device for offline use.
AsyncStorage is the built-in API for local storage in React Native
Data is stored as key-value pairs
Data can be retrieved and updated asynchronously
Local storage can be used for caching data for offline use
Example: AsyncStorage.setItem('key', 'value')
Example: AsyncStorage.getItem('key')
Interview Preparation Tips
Skills evaluated in this interview
Top trending discussions
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I appeared for an interview before Mar 2021.
Round duration - 30 minutes
Round difficulty - Medium
This was a MCQ round. 30 ques in 30 mins consisting of difficult quantitative aptitude questions were to be solved.
(2 Questions)
Round duration - 60 minutes
Round difficulty - Medium
In this test round, 2 coding questions were given. Either write the code or pseudo code
- Q1.
N Queens Problem
Given an integer
N, find all possible placements ofNqueens on anN x Nchessboard such that no two queens threaten each other.Explanation:
A queen can attack another queen if they ar...
- Ans.
The N Queens Problem involves finding all possible placements of N queens on an N x N chessboard without threatening each other.
Use backtracking algorithm to explore all possible configurations.
Keep track of rows, columns, and diagonals to ensure queens do not threaten each other.
Generate all valid configurations and print them out.
- Q2.
Sort 0 1 2 Problem Statement
Given an integer array
arrof size 'N' containing only 0s, 1s, and 2s, write an algorithm to sort the array.Input:
The first line contains an integer 'T' representing the n... - Ans.
Sort an array of 0s, 1s, and 2s in linear time complexity.
Use three pointers to keep track of 0s, 1s, and 2s while traversing the array.
Swap elements based on the values encountered to sort the array in-place.
Time complexity should be O(N) and space complexity should be O(1).
(2 Questions)
Round duration - 60 minutes
Round difficulty - Easy
This was a technical round with questions on DSA.
- Q1.
Reverse Words in a String: Problem Statement
You are given a string of length
N. Your task is to reverse the string word by word. The input may contain multiple spaces between words and may have leading o... - Ans.
Reverse words in a string while handling leading, trailing, and multiple spaces.
Split the input string by spaces to get individual words
Reverse the order of the words
Join the reversed words with a single space in between
- Q2.
Circular Linked List Detection
You are provided with the head of a linked list containing integers. Your task is to determine if the linked list is circular.
Note:
- A linked list is considered circula...
- Ans.
Detect if a given linked list is circular by checking if it forms a closed loop.
Traverse the linked list using two pointers, one moving at double the speed of the other.
If the two pointers meet at any point, the linked list is circular.
If the faster pointer reaches the end of the list (NULL), the linked list is not circular.
Round duration - 30 minutes
Round difficulty - Easy
HR round with typical behavioral problems.
Interview Preparation Tips
Tip 1 : Must do Previously asked Interview as well as Online Test Questions.
Tip 2 : Go through all the previous interview experiences from Codestudio and Leetcode.
Tip 3 : Do at-least 2 good projects and you must know every bit of them.
Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.
Skills evaluated in this interview
Software Developer Interview Questions & Answers
Incture Technologies
Anonymous
posted on 5 Aug 2024
BASIC DSA LIKE ARRAY AND STRING
(2 Questions)
- Q1. System Design for Electric Charger app ?
- Ans.
System design for an electric charger app involves creating a user-friendly interface, integrating with payment systems, and ensuring efficient charging station management.
Design a user-friendly interface for users to locate and reserve charging stations
Integrate with payment systems for seamless transactions
Implement efficient charging station management to monitor availability and maintenance
Consider scalability for ...
- Q2. Design digram for that ?
- Ans.
Design diagram for a software developer role.
Use UML diagrams to show class relationships and interactions
Include components like classes, interfaces, relationships, and methods
Consider using tools like Lucidchart or draw.io for creating the diagram
Interview Preparation Tips
Skills evaluated in this interview
Software Developer Interview Questions & Answers
Incture Technologies
Anonymous
posted on 19 Sep 2024
I applied via Company Website and was interviewed in Aug 2024. There were 2 interview rounds.
Very basic aptitude questions along with few coding questions
(2 Questions)
- Q1. A problem statement was given and we had to provide an optimal approach to design and handle that problem
- Q2. Oops concepts, SQL queries
Vikashojaswin
I applied via Recruitment Consulltant and was interviewed in Jul 2023. There were 3 interview rounds.
Arrays, basics. easy, some important topics in python and sql
(2 Questions)
- Q1. SQL basics question learned in online or self
- Q2. Joins, groupby, clause, projection, having
Interview Preparation Tips
I applied via Campus Placement and was interviewed before Jun 2021. There were 3 interview rounds.
Not hard
(2 Questions)
- Q1. On java sql and related
- Q2. Interview questions on java , SQL and basic queries on joins and coding questions on string manipulation and linked list . Also they ask about trees and graphs.
(1 Question)
- Q1. Common HR questions and related
Interview Preparation Tips
- Java
- SQL
I applied via Approached by Company and was interviewed in Feb 2024. There were 4 interview rounds.
DSA coding 2-3 question
Java, DSA coding, java 8 coding, multithreading
Java8, spring-boot, DSA coding
(1 Question)
- Q1. DSA coding, java 8 coding, spring boot, mysql
Interview Preparation Tips
Akshat Mishra
Selected
I appeared for an interview before Feb 2023.
Good and easy learn dsa and algo
Learn dsa and algo binary tree and lists
(1 Question)
- Q1. Learn basic subjects and topics like OS and Cloud
(1 Question)
- Q1. Short round based on aptitude and attidtude
Aptitude,reasoning,verbal,C language,Java,C++
(2 Questions)
- Q1. What is interface in JAVA
- Ans.
An interface in Java is a reference type that defines a contract for classes to implement methods without providing their implementation.
Interfaces can contain method signatures and constants but no method bodies.
A class implements an interface using the 'implements' keyword. Example: 'class MyClass implements MyInterface'.
Multiple interfaces can be implemented by a single class, allowing for multiple inheritance of ty...
- Q2. Explain OOPS in JAVA
- Ans.
OOP in Java is a programming paradigm based on objects, enabling code reusability, encapsulation, inheritance, and polymorphism.
Encapsulation: Bundling data and methods that operate on the data within one unit (class). Example: private variables with public getters/setters.
Inheritance: Mechanism where one class inherits properties and behavior from another. Example: class Dog extends Animal.
Polymorphism: Ability to pre...
Interview Preparation Tips
I applied via Naukri.com and was interviewed before Sep 2020. There were 3 interview rounds.
Interview Questionnaire
3 Questions
- Q1. Basics of Java ,MySQL
- Q2. For java do all object oriented programming (oops) concept very deeply
- Ans.
Java supports OOP concepts like encapsulation, inheritance, polymorphism, and abstraction, enhancing code reusability and maintainability.
Encapsulation: Bundling data and methods. Example: private variables with public getters/setters.
Inheritance: Deriving new classes from existing ones. Example: class Dog extends Animal.
Polymorphism: Ability to take many forms. Example: method overriding and overloading.
Abstraction: H...
- Q3. For mysql do all basics commands and query
- Ans.
Basic MySQL commands include creating databases, tables, inserting data, querying, updating, and deleting records.
CREATE DATABASE db_name; // Creates a new database
USE db_name; // Selects the database to use
CREATE TABLE table_name (column1 datatype, column2 datatype); // Creates a new table
INSERT INTO table_name (column1, column2) VALUES (value1, value2); // Inserts data into a table
SELECT * FROM table_name; // Retriev...
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