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I applied via Job Portal and was interviewed in Jan 2024. There was 1 interview round.
Use a subquery to find the second highest salary in the table.
Use a subquery to select all salaries that are less than the maximum salary in the table.
Then select the maximum salary from the results of the subquery to get the second highest salary.
Update same column in 1 query
Use the UPDATE statement with the SET clause to update the desired column
Reference the same column in the SET clause to update it with a new value
Ensure proper WHERE clause is used to specify which rows to update
I applied via Apna Jobs and was interviewed in Oct 2022. There were 2 interview rounds.
posted on 9 Sep 2023
I applied via Naukri.com and was interviewed in Aug 2023. There were 2 interview rounds.
React hooks are functions that let you use state and other React features without writing a class.
Hooks are functions that let you use state and other React features in functional components
useState() is a hook that allows you to add state to functional components
useEffect() is a hook that allows you to perform side effects in functional components
useContext() is a hook that allows you to use the context API in functio
Liskov Substitution Principle states that objects of a superclass should be replaceable with objects of its subclasses without affecting the program's correctness.
Subtypes must be substitutable for their base types.
Derived classes must be able to replace their base classes without affecting the program's behavior.
Violating this principle can lead to unexpected behavior and errors in the code.
Example: If a program expec...
Oops concept is a programming paradigm that focuses on objects and classes.
Oops stands for Object-Oriented Programming
Key concepts include inheritance, encapsulation, polymorphism, and abstraction
Examples: Class Car with properties like make, model, and methods like start(), stop()
Example: Inheritance - Class SUV extends Car and adds property numSeats
posted on 8 Feb 2022
I applied via Recruitment Consulltant and was interviewed in Aug 2021. There were 3 interview rounds.
posted on 9 Nov 2022
I applied via Approached by Company and was interviewed before Nov 2021. There were 4 interview rounds.
Basic problem solving easy to medium level
Sorting algorithm arranges elements in a specific order.
Choose an appropriate sorting algorithm based on the data size and type.
Common sorting algorithms include bubble sort, insertion sort, merge sort, quicksort, and selection sort.
Implement the chosen algorithm in the programming language of choice.
Test the algorithm with various input sizes and types to ensure correctness and efficiency.
posted on 19 Apr 2024
I applied via Naukri.com and was interviewed before Apr 2023. There were 3 interview rounds.
C++ related aptitude test. OOPs questions.
Questions related to linked list. Virtual functions and virtual destructor.
Reversing a LinkedIn list.
We primarily use the MERN stack for our web development projects.
MERN stack includes MongoDB, Express.js, React, and Node.js
MongoDB is used as the database to store data
Express.js is used as the backend framework for building APIs
React is used for building the user interface
Node.js is used as the server-side runtime environment
Threads are handled by creating and managing lightweight processes within a program to improve performance and responsiveness.
Threads are managed by the operating system or a thread library.
Threads share the same memory space within a process.
Threads can communicate with each other through shared memory or message passing.
Thread synchronization is important to prevent race conditions and ensure data consistency.
Example...
I applied via unstop and was interviewed before Oct 2023. There were 3 interview rounds.
It was medium to difficult level test
Full selectors select all descendants of a specified element, while partial selectors select only direct children.
Full selectors use a space between the parent and child elements, while partial selectors use the > symbol.
Full selectors are more general and can target multiple levels of descendants, while partial selectors are more specific and target only direct children.
Example of full selector: div p selects all
ele...
Screen scraping is extracting data from a website's HTML code, while data scraping is extracting data from various sources.
Screen scraping involves extracting data from the visual representation of a website, usually using automation tools like web scrapers.
Data scraping involves extracting data from various sources such as databases, APIs, and documents.
Both screen scraping and data scraping are used to collect and an...
posted on 2 Feb 2024
I applied via Campus Placement and was interviewed in Jan 2024. There were 3 interview rounds.
Computer fundamentals
based on 2 interviews
Interview experience
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