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I applied via Naukri.com and was interviewed in Dec 2021. There was 1 interview round.
Selenium 4 has new features like improved W3C support, relative locators, and better error handling.
Improved W3C support for better browser compatibility
Relative locators for easier element location
Better error handling with detailed error messages
New APIs for easier browser automation
Support for Chromium-based Edge browser
Integration with DevTools Protocol for better debugging
Encapsulation is the process of hiding implementation details and exposing only necessary information.
Encapsulation is achieved through access modifiers like public, private, and protected.
It helps in achieving data abstraction and information hiding.
Encapsulation provides better control over the data and prevents unauthorized access.
Example: A class with private variables and public methods to access them.
There are three types of waits in Selenium: Implicit Wait, Explicit Wait, and Fluent Wait.
Implicit Wait: Waits for a certain amount of time before throwing an exception if the element is not found.
Explicit Wait: Waits for a certain condition to occur before proceeding further in the code.
Fluent Wait: Waits for a certain condition to occur with a defined frequency before proceeding further in the code.
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I applied via Referral and was interviewed in Sep 2024. There were 2 interview rounds.
Use dynamic programming to find the longest palindromic substring in a given string.
Iterate through the string and expand around each character to find palindromes.
Store the length of the longest palindrome found so far.
Return the substring based on the start and end indices of the longest palindrome.
To serialize and deserialize a tree, use a recursive approach to traverse the tree and store the data in a suitable format.
Use pre-order traversal to serialize the tree by storing the node values in a list or string.
For deserialization, reconstruct the tree by recursively building nodes from the serialized data.
Consider using JSON or XML format for serialization to easily store and retrieve tree structure.
Use regex library to match given regex with string.
Use a regex library like re in Python to match the given regex with the string.
Check if the regex matches the string using the library functions.
Handle cases where the regex contains special characters like . and * appropriately.
Throttling is a technique used to control the rate of requests sent to a server.
Throttling helps prevent server overload by limiting the number of requests processed at a time.
Implementing a throttle function involves setting a maximum request rate and delaying excess requests.
Example: Implementing a throttle function in a web application to limit the number of API calls made to a third-party service.
Example: Throttlin...
Sort the squares of elements in a sorted array and return the sorted response.
Iterate through the array and square each element.
Store the squared values in a new array.
Sort the new array and return it.
A promise is a commitment to do something in the future, typically used for asynchronous operations in JavaScript.
Promises are used to handle asynchronous operations in JavaScript.
They represent a value that may be available now, in the future, or never.
Promises have three states: pending, fulfilled, or rejected.
Example: new Promise((resolve, reject) => { setTimeout(() => resolve('Done!'), 1000); });
Event loop is a mechanism that allows for asynchronous execution of code by managing the order of events in a single thread.
Event loop continuously checks the call stack for any functions that need to be executed, and processes them in a non-blocking manner.
Different types of queues in event loop include microtask queue (Promise callbacks), macrotask queue (setTimeout, setInterval callbacks), and animation frame queue
Virtual DOM is a lightweight copy of the actual DOM, used to improve performance by minimizing direct manipulation of the real DOM.
Virtual DOM is a concept used in frameworks like React to optimize rendering performance.
Changes are first made to the virtual DOM, which is then compared to the real DOM to identify the minimal updates needed.
This approach reduces the number of actual DOM manipulations, resulting in faster...
DSA round leetcode style question
I applied via Naukri.com and was interviewed in Jul 2024. There was 1 interview round.
I have over 8 years of experience in software development, specializing in backend systems and database management.
Developed scalable backend systems using Java and Spring framework
Designed and optimized database schemas for performance
Led a team of developers in implementing new features and resolving technical issues
Worked on integrating third-party APIs for enhanced functionality
Difficulties faced include complex technical challenges, tight deadlines, and communication issues.
Complex technical challenges such as optimizing performance of a large-scale system
Tight deadlines requiring quick turnaround on projects
Communication issues with team members or stakeholders leading to misunderstandings
posted on 29 Aug 2024
I applied via LinkedIn and was interviewed in Jul 2024. There was 1 interview round.
I applied via Naukri.com and was interviewed in Sep 2024. There was 1 interview round.
I applied via LinkedIn and was interviewed in Jun 2024. There were 3 interview rounds.
Two DSA questions related to Arrays & strings
Design a URL shortener service with features like shortening, redirecting, tracking, handling collisions, and providing analytics.
Use a hashing algorithm to generate unique short URLs from long URLs
Store mappings of short URLs to original URLs in a database
Implement a redirect mechanism to direct users to the original URL when accessing the short URL
Track the number of times each short URL is accessed and store this da...
I applied via LinkedIn and was interviewed in May 2024. There was 1 interview round.
HIL programming involves testing software with real hardware components, while normal software simulation uses virtual components.
HIL programming requires physical hardware interfaces for testing
Normal software simulation uses virtual components to mimic real-world scenarios
HIL programming provides more accurate results due to real hardware interactions
Normal software simulation is more cost-effective and easier to set
Stateflow is a graphical programming language tool used for modeling and simulating complex systems with finite state machines.
Stateflow is part of MATLAB/Simulink and allows for visual representation of logic and control flow.
It is commonly used in industries such as automotive, aerospace, and robotics for modeling complex systems.
Stateflow enables engineers to design and simulate state machines, flow charts, and trut...
posted on 22 Feb 2024
I applied via Recruitment Consulltant and was interviewed in Jan 2024. There were 6 interview rounds.
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