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I applied via LinkedIn and was interviewed in May 2024. There was 1 interview round.
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I appeared for an interview in Mar 2025, where I was asked the following questions.
I applied via Company Website and was interviewed before Dec 2020. There were 3 interview rounds.
I applied via LinkedIn and was interviewed in Dec 2020. There were 3 interview rounds.
JS Prototype is a mechanism for inheritance and sharing properties among objects.
Prototype is a property of every JavaScript function.
It allows objects to inherit properties and methods from other objects.
Modifying the prototype of a function affects all instances of that function.
Prototype chain is used to look up properties and methods of an object.
Prototype can be used to add new methods and properties to existing o...
To find the total number without any loop in Node.js
Use the reduce() method to sum up the values in an array
Use the length property of an array to get the total number of elements
Use the Object.keys() method to get the total number of keys in an object
Promises, async/await, and callbacks are all ways to handle asynchronous operations in Node.js.
Callbacks are functions passed as arguments to another function and called when the operation is complete.
Promises represent a value that may not be available yet, but will be resolved at some point in the future.
Async/await is a syntax for writing asynchronous code that looks like synchronous code.
Callbacks are the oldest an...
Promises are used in Node to handle asynchronous operations and avoid callback hell.
Promises simplify error handling and make code more readable.
Promises allow for chaining multiple asynchronous operations.
Promises can be used with async/await to write synchronous-looking code.
Example: fetching data from an API using axios library with promises.
Example: reading a file with promises in Node's fs module.
Sequelize is an ORM for Node.js that supports multiple databases and provides easy data modeling and querying.
Sequelize is used to interact with databases in Node.js
It supports multiple databases like MySQL, PostgreSQL, SQLite, etc.
It provides easy data modeling and querying with its object-relational mapping
Example: const sequelize = new Sequelize('database', 'username', 'password', { dialect: 'mysql' });
To retrieve the last element in a SQL query, use ORDER BY with DESC and LIMIT 1.
Use SELECT statement to specify the columns you want to retrieve.
ORDER BY column_name DESC to sort the results in descending order.
LIMIT 1 to get only the last element from the sorted results.
Example: SELECT * FROM table_name ORDER BY id DESC LIMIT 1;
Count the number of substrings in a given string that are divisible by 6.
Iterate through all possible substrings of the given string.
Check if the substring is a valid integer and not starting with 0.
If the substring is divisible by 6, increment the count.
Return the count of substrings that are divisible by 6.
posted on 5 Aug 2024
I applied via Job Portal and was interviewed in Feb 2024. There were 3 interview rounds.
30 mins Aptitude Question
30 mins - 3 Coding Question
Response codes indicate the status of a HTTP request. 200 & 201 are success codes, while 400 & 403 are client error codes.
200 - OK: Request was successful
201 - Created: Request was successful and a new resource was created
400 - Bad Request: The server cannot process the request due to a client error
403 - Forbidden: The server understood the request, but refuses to authorize it
posted on 8 Apr 2024
posted on 12 Apr 2024
I applied via Approached by Company and was interviewed in Mar 2024. There were 2 interview rounds.
Logic and MCQ were there
COBOL DB2 is a programming language used for database management. Checkpoint logic is used to ensure data integrity and recoverability.
COBOL DB2 is used for accessing and manipulating data in DB2 databases.
Checkpoint logic in COBOL DB2 involves saving the current state of the database at specific points to ensure data integrity.
To add checkpoint logic, you can use COMMIT and ROLLBACK statements in your COBOL DB2 progra...
JCL (Job Control Language) is used to control batch jobs on mainframe systems. Restarting a job involves identifying the step where it failed and resubmitting the job from that step.
JCL is used to define and control batch jobs on mainframe systems
To restart a job, identify the step where it failed
Modify the JCL to start from the failed step by specifying the restart parameter
Submit the modified JCL to restart the job
posted on 25 Jul 2024
It was easy, the topic is upi
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