OpenXcell Technolabs Interview Questions, Process, and Tips

Basic aptitude and technical questions

Q1. Python questions basic
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Q2. Project basic questions
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Core Subject questions

Q1. What is authentication and authorization?
Ans. 
Authentication is the process of verifying the identity of a user, while authorization is the process of determining what resources a user can access.
• Authentication confirms the identity of a user through credentials like username and password.

• Authorization determines the level of access a user has to resources based on their authenticated identity.

• Examples of authentication include login forms, biometric scans, and tw...read more
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Q2. What is promises?
Ans. 
Promises are objects representing the eventual completion or failure of an asynchronous operation.
• Promises are used to handle asynchronous operations in JavaScript.

• They can be in one of three states: pending, fulfilled, or rejected.

• Promises can be chained using .then() method to handle success and failure.

• They help in avoiding callback hell and writing cleaner asynchronous code.
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Q1. What is promise?
Ans. 
A promise is an object representing the eventual completion or failure of an asynchronous operation.
• Promises are used in JavaScript to handle asynchronous operations.

• They can be in one of three states: pending, fulfilled, or rejected.

• Promises can be chained together using .then() method.

• Example: Fetching data from an API returns a promise that resolves with the data.

• Example: Promises help avoid callback hell by providi...read more
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Q2. What is scope and how it differentiate?
Ans. 
Scope refers to the visibility and accessibility of variables in a program.
• Scope determines where in a program a variable can be accessed.

• Global scope refers to variables that can be accessed anywhere in the program.

• Local scope refers to variables that are only accessible within a specific block of code.

• Variables declared within a function have local scope.

• Scope can help prevent naming conflicts and improve code organi
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In aptitude test time duration is 20 minutes ask questions about SQL and oop and syntax questions of java c++ and python. Level is medium

Basic aptitude test.

Machine coding test which is focused on javascript.

Q1. Live project which have to be submitted in a week
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Q1. Salary expectation
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