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A promise is an object representing the eventual completion or failure of an asynchronous operation.
Promises are used to handle asynchronous operations such as fetching data from an API.
They have three states: pending, fulfilled, or rejected.
Promises can be chained using .then() and .catch() methods.
They help avoid callback hell and make code more readable and maintainable.
A closure is a function that has access to variables in its outer scope, even after the outer function has returned.
A closure is created when a function returns another function that references variables in its outer scope.
Closures can be used to create private variables and methods in JavaScript.
Closures can also be used to create functions with pre-set arguments.
Closures can cause memory leaks if not used properly.
Multidimensional arrays in Java are arrays of arrays, allowing for multiple dimensions of data storage.
Declare a multidimensional array using the syntax: String[][] arrayName = new String[rowSize][columnSize];
Access elements in a multidimensional array using arrayName[rowIndex][columnIndex];
Initialize a multidimensional array with values: String[][] arrayName = { {"value1", "value2"}, {"value3", "value4"} };
I applied via Naukri.com and was interviewed in Jan 2024. There was 1 interview round.
I am a dedicated and detail-oriented Implementation Support Engineer with a strong background in troubleshooting and customer service.
Experienced in providing technical support to customers
Proficient in troubleshooting software and hardware issues
Strong communication skills for effectively resolving customer concerns
Ability to work well under pressure and meet deadlines
Familiar with various operating systems and networ
I have worked on various projects involving implementation and support of software solutions for clients.
Implemented and configured software solutions based on client requirements
Provided technical support and troubleshooting for clients
Collaborated with cross-functional teams to ensure successful project delivery
I applied via Referral and was interviewed before Jul 2023. There were 2 interview rounds.
FIxed income securities
Credence Analytics interview questions for popular designations
I applied via Naukri.com and was interviewed in Oct 2023. There were 3 interview rounds.
I applied via Naukri.com and was interviewed in Apr 2023. There were 3 interview rounds.
Primary key is a unique identifier for each record in a database table.
Primary key ensures each record in a table is unique
It can be a single column or a combination of columns
Primary key values cannot be null
Example: 'id' column in a 'users' table
A foreign key is a column or a set of columns in a table that uniquely identifies a row in another table.
Foreign keys establish a relationship between two tables in a database.
They ensure referential integrity by enforcing a link between the data in the two tables.
For example, in a database of students and courses, the student ID in the courses table would be a foreign key linking back to the student table.
Make an api in this round, in your known language
I applied via Approached by Company
I was interviewed in Aug 2021.
Build movies website where the user can search any movie worldwide and can see details and rating of this movie too.
I applied via Referral
I am excited about the opportunity to work for a company with a strong reputation and a commitment to excellence.
Credence has a great reputation in the industry and I want to be a part of that
I am impressed with the company's commitment to excellence and innovation
I believe that my skills and experience would be a good fit for the company
I am excited about the potential for growth and development within the company
I am...
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