Codinova Technologies Fullstack Javascript Developer Interview Questions and Answers

Q1. Define gypsum with formula
Ans. 
Gypsum is a soft sulfate mineral composed of calcium sulfate dihydrate, with the chemical formula CaSO4·2H2O.
• Gypsum is commonly used in construction as a material for making plaster of Paris and drywall.

• It is also used in agriculture as a soil conditioner to improve soil structure.

• The chemical formula for gypsum is CaSO4·2H2O, indicating that it contains calcium, sulfur, and water molecules.
Answered by AI
Add your answer
Q2. Tell about baking powder
Ans. 
Baking powder is a leavening agent used in baking to help baked goods rise.
• Baking powder is a combination of an acid (usually cream of tartar) and a base (usually baking soda).

• When mixed with liquid and heat, baking powder releases carbon dioxide gas, causing the batter or dough to rise.

• There are different types of baking powder, such as single-acting and double-acting.

• Double-acting baking powder reacts twice - once wh...read more
Answered by AI
Add your answer

Java, java Stream, spring boot, hibernate, JVM, JRE,string function annotations

Q1. What is JRE & JDK?
Ans. 
JRE stands for Java Runtime Environment, which is used to run Java applications. JDK stands for Java Development Kit, which is used to develop Java applications.
• JRE is necessary to run Java applications on a computer

• JDK is necessary to develop Java applications, as it includes tools like compiler and debugger

• JDK includes JRE, so if you have JDK installed, you also have JRE
Answered by AI
Add your answer
Q2. Nothing
Add your answer
Q3. Nothinh
Add your answer

Q1. Tell me something about yourself
Add your answer
Q2. Mock call opening pitch
Add your answer
Q3. What if you get angry customer explain how will you handle the call
Add your answer
Q4. Tell me something about the area you reside in, how you spend your weekends
Ans. 
I reside in a vibrant urban neighborhood with plenty of cafes, parks, and cultural events. On weekends, I enjoy exploring new restaurants, attending art exhibits, and taking long walks in the park.
• My neighborhood is known for its diverse culinary scene, with a mix of trendy cafes and traditional eateries

• There are several parks nearby where I like to relax and read a book or have a picnic

• I often attend art exhibits and ...read more
Answered by AI
Add your answer

Q1. Privious knowledge
Add your answer
Q2. Tell me about your work experience in which command
Ans. 
I have over 5 years of experience in sales and have consistently exceeded targets through effective communication and relationship building.
• Managed a portfolio of key accounts, increasing revenue by 20% year over year

• Developed and implemented successful sales strategies to penetrate new markets

• Led a team of sales representatives to achieve monthly targets

• Utilized CRM software to track customer interactions and identify...read more
Answered by AI
Add your answer

Q1. Brief introduction
Add your answer
Q2. About previous job roles and responsibilities
Add your answer

Q1. About goggle pay process
Add your answer
Q2. Features of google pay
Ans. 
Google Pay is a digital wallet platform and online payment system developed by Google.
• Allows users to make payments using their mobile devices

• Supports contactless payments in stores

• Offers peer-to-peer money transfers

• Integrates with various online platforms for easy checkout

• Provides rewards and cashback for transactions
Answered by AI
Add your answer

Q1. Tell me about you
Add your answer
Q2. About your background
Add your answer

Q1. Tell me about you
Add your answer
Q2. About previous work experience
Add your answer

Q1. What is Promise in JS?
Ans. 
Promise in JS is an object 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 cases.

• Example: new Promise((resolve, reject) => { ... }).then(result => { ... }).catch(error => { ... });
Answered by AI
Add your answer
Q2. What is Call back?
Ans. 
A callback is a function passed as an argument to another function to be executed later.
• Callback functions are commonly used in asynchronous programming to handle responses or events.

• Callbacks can be synchronous or asynchronous.

• Example: setTimeout function in JavaScript takes a callback function as an argument to be executed after a specified time.
Answered by AI
Add your answer

Q1. What are the skills that you have?
Add your answer
Q2. Why do you want to join wipro?
Add your answer

Pearson test where our verbal skills are tested