BatchService Interview Questions and Answers

Q1. Concept of Hoisting in Javascript
Ans. 
Hoisting is a JavaScript behavior where variable and function declarations are moved to the top of their containing scope during compilation.
• Variable declarations are hoisted to the top of their scope, but not their initializations.

• Function declarations are fully hoisted, including their definitions.

• Hoisting can lead to unexpected behavior if not understood properly.
Answered by AI
Add your answer
Q2. What is arrow function
Ans. 
Arrow functions are a concise way to write functions in JavaScript.
• Arrow functions are anonymous functions defined using the '=>' syntax.

• They have a shorter syntax compared to traditional function expressions.

• Arrow functions do not have their own 'this' keyword, instead they inherit it from the parent scope.
Answered by AI
Add your answer
Q3. Polyfill of Promise
Ans. 
Polyfill of Promise is a code that adds Promise functionality to browsers that do not support it natively.
• Polyfill is a piece of code that provides the technology that you expect the browser to provide natively.

• Polyfill for Promise adds Promise functionality to browsers that do not support it, allowing developers to use Promises in their code.

• Examples of Promise polyfills include 'es6-promise' and 'promise-polyfill'.
Answered by AI
Add your answer

Q1. Implementation of carousel
Ans. 
Implementing a carousel for displaying multiple images or content in a rotating manner.
• Use a library like Slick or Owl Carousel for easy implementation

• Ensure images/content are responsive for different screen sizes

• Add navigation arrows or dots for user interaction

• Consider adding autoplay feature with customizable speed

• Optimize performance by lazy loading images
Answered by AI
Add your answer

Q1. General professional introduction
Add your answer
Q2. Skill cross check
Add your answer

Q1. UI kit, core data, core location, optionals, GCD
Add your answer

Simple Task given wanted to complete in specified time duration

3 dsa questions were asked

Q1. Dsa questinsxare asked
Add your answer
Q2. Coding in live anlong project explanation
Ans. 
Coding in live project involves writing and implementing code in a real-world software development project.
• Understand the project requirements and scope before writing any code.

• Collaborate with team members to ensure code integration and compatibility.

• Test and debug code to ensure it meets project specifications.

• Document code changes and updates for future reference.

• Follow coding best practices and guidelines to mainta...read more
Answered by AI
Add your answer
Q3. Nothing is asked in my 3rd question
Add your answer
Q4. What does the following C++ code snippet do? int x = 5; while (x > 0) { cout << x << " "; x--; } Results in a compilation error Prints "54321" Prints "545454" Prints "12345"
Ans. 
Prints numbers from 5 to 1 separated by a space
• The code initializes x to 5, then enters a while loop that prints the value of x and decrements it until x is no longer greater than 0

• The output will be '54321'
Answered by AI
Add your answer
Q5. What will be the value printed to the console? #include void function(int arr[], int size) { for (int 10; 1 size; 1++) { arr[1] = 2; } int main() { int arr[] {1, 2, 3, 4, 5); function(arr, 5);...read more
Ans. 
The value printed to the console will be 246810.
• The function modifies the array elements to be 2.

• The main function calls the function to modify the array.

• The loop in main function prints the modified array elements.
Answered by AI
Add your answer

Q1. Behavior question related to previous experience
Add your answer
Q2. Answer with all your previous experience which you havs handled
Add your answer

2 questions, Easy and medium based

Q1. Stacks queues and array questions
Add your answer

Q1. Technical questions on projects
Add your answer

Q1. How to tackle any uncertain situations? Behavioural questions
Add your answer

Q1. Based on resume
Add your answer

Q1. Based on resume
Add your answer

Q1. Basic information
Add your answer

Q1. Based on resume
Add your answer

Scenario questions logical solving

Need to explain about problems solved in previous round

Q1. Project discussion and basics information
Add your answer

It was easy basic questions were there and we were asked to write two emails.

Q1. Questions related to projects
Add your answer
Q2. QBasic SQL questions
Add your answer