Northcorp Software Trainee Interview Questions and Answers

Q1. What is git, how GitHub work without git
Ans. 
Git is a version control system used for tracking changes in code. GitHub is a platform for hosting code repositories and collaborating with others.
• Git is a distributed version control system that allows multiple developers to work on the same codebase without conflicts.

• GitHub is a web-based platform that provides hosting for Git repositories, along with additional features like issue tracking, pull requests, and proje...read more
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Q2. What is salting, hashing, rainbow table
Ans. 
Salting, hashing, and rainbow tables are techniques used in cryptography to secure passwords.
• Salting involves adding a random string of characters to a password before hashing to prevent attacks like rainbow tables.

• Hashing is the process of converting a password into a fixed-length string of characters using a cryptographic hash function.

• Rainbow tables are precomputed tables used to crack hashed passwords by matching a
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Two written coding questions

Q1. JavaScript basic questions such as Functions
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Q2. React question such as hooks ,react life cycle
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Coding test on JavaScript

Got an assignment to create a e-learning platform

Q1. What is JavaScript
Ans. 
JavaScript is a programming language commonly used for creating interactive websites.
• JavaScript is a high-level, interpreted programming language.

• It is used to make web pages interactive and dynamic.

• JavaScript can be used for client-side and server-side development.

• Examples: Adding interactivity to buttons, form validation, creating animations.
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Basic questions are there in the test.

Q1. Linked list merging
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Q2. JavaScript difference between && and &&&
Ans. 
&& is a logical AND operator in JavaScript, while &&& is not a valid operator.
• && is used to combine two logical expressions and returns true only if both expressions are true

• &&& is not a valid operator in JavaScript and will result in a syntax error
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Assessment test , there are two questions given and you have to attempt these two.

Test on js in googleform very simple i can attempt in just 10 min

Write code and explain it

Total 5 rounds. 1. pen paper coding test at company location (1st one is two pointer and second one is pattern) 2. L1 techinical - oops concept two coding question and some java and advance java concept basic (find palindrome) 3. L2 techinical - two coding question, one puzzle, sql vs nosql, etc (build linked list using class, find min and max element in array), discussion on time complexity 4. L3 managerial round : one basic two loop question and optimmize it , printing pattern question, etc and time complecity 5. HR round- basic hr questions