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Lazy loading is a technique used to defer the loading of non-critical resources until they are actually needed.
It improves page load time and performance.
It reduces the initial load time of a web page.
It is commonly used for images, videos, and other media files.
It can be implemented using JavaScript or server-side scripting.
Example: Images below the fold on a webpage are loaded only when the user scrolls down to ...
Ajax calls are asynchronous HTTP requests made by JavaScript to a server without reloading the page.
Ajax stands for Asynchronous JavaScript and XML
Used to update parts of a web page without reloading the entire page
Can be used to fetch data from a server and display it on a web page
Examples: Google Maps, Facebook News Feed
I have volunteered for various CSR activities such as beach cleanups, blood donation drives, and fundraising for charity organizations.
Volunteered for beach cleanups organized by local NGOs
Participated in blood donation drives organized by hospitals
Raised funds for charity organizations through social media campaigns
Mentored underprivileged children in a local school
Organized a food donation drive for homeless peo...
I will prioritize tasks based on their urgency and impact, delegate if possible, and communicate with stakeholders.
Assess the urgency and impact of each task
Delegate tasks to team members if appropriate
Communicate with stakeholders to manage expectations
Use time management techniques to optimize productivity
Seek assistance or support from colleagues if needed
I encourage open communication and collaboration to resolve conflicts and find mutually beneficial solutions.
Encourage open communication and active listening
Identify the root cause of the conflict
Brainstorm potential solutions together
Find a mutually beneficial solution
Document the resolution and follow up to ensure success
The life cycle of an MVC application involves the stages of initialization, request processing, rendering, and disposal.
Initialization: Application starts, routes are configured, and controllers and views are initialized.
Request processing: User sends a request, which is routed to the appropriate controller. Controller processes the request and interacts with the model and view.
Rendering: Controller passes data to...
Filters in MVC are used to intercept and modify incoming requests or outgoing responses.
Filters can be used to implement authentication and authorization.
They can be used to handle exception and error logging.
Filters can be used to modify the response before it is sent to the client.
They can be used to implement caching and performance optimizations.
Filters can be applied globally or to specific controllers or act...
Abstract and Interface are important concepts in object-oriented programming.
Abstract classes provide a way to define common behavior for a group of classes.
Interfaces define a contract that classes must adhere to.
Abstract classes can have both abstract and non-abstract methods.
Interfaces can only have abstract methods and constants.
Classes can implement multiple interfaces but can only inherit from one abstract c...
Factory design pattern is a creational pattern that provides an interface for creating objects in a superclass, but allows subclasses to alter the type of objects that will be created.
Factory pattern is used when we have a superclass with multiple subclasses and based on input, we need to return one of the subclass.
It provides a way to delegate the instantiation logic to child classes.
Example: java.util.Calendar, ...
CORS (Cross-Origin Resource Sharing) is a security feature that restricts web pages from making requests to a different domain.
CORS issue occurs when a web page tries to access resources from a different domain
It is a security feature implemented by web browsers to prevent cross-site scripting attacks
CORS issue can be resolved by configuring the server to allow cross-origin requests or by using JSONP
It can occur i...
I applied via Referral and was interviewed in Jun 2024. There were 2 interview rounds.
Tree traversals are methods to visit all nodes in a binary tree in different orders: inorder, preorder, and postorder.
Inorder Traversal: Visit left subtree, root, then right subtree. Example: For tree 1,2,3, result is 2,1,3.
Preorder Traversal: Visit root, left subtree, then right subtree. Example: For tree 1,2,3, result is 1,2,3.
Postorder Traversal: Visit left subtree, right subtree, then root. Example: For tree 1,2,3,...
Rate limit design involves setting limits on the number of requests a user can make within a certain time frame to prevent abuse or overload.
Consider the type of requests being made and the impact of rate limiting on user experience.
Implement rate limiting at different levels such as API endpoints, user accounts, or IP addresses.
Use tokens or tokens buckets to track and enforce rate limits.
Provide clear error messages ...
I applied via Campus Placement and was interviewed in Aug 2024. There were 2 interview rounds.
On mettle platform was easy
I am a passionate Senior SDET Engineer with a strong interest in automation, quality assurance, and continuous improvement.
Experienced in designing and implementing automated testing frameworks
Skilled in identifying and resolving software defects
Passionate about staying up-to-date with the latest technologies and tools in the QA field
I have worked on various projects including test automation, performance testing, and CI/CD implementation.
Test automation project using Selenium and Java to automate regression tests for web applications
Performance testing project using JMeter to simulate load on a web application and identify bottlenecks
CI/CD implementation project using Jenkins to automate build, test, and deployment processes
In 5 years, I see myself as a senior business analyst leading a team and contributing to strategic decision-making.
Leading a team of analysts
Contributing to strategic decision-making
Continuing professional development and certifications
Possibly pursuing a management role
Enhancing industry knowledge and expertise
I am interested in Epsilon's innovative approach to data analytics and leaving my current organization for career growth opportunities.
Epsilon's reputation for cutting-edge data analytics solutions
Opportunity for career growth and development at Epsilon
Excited about working with a new team and learning new skills
posted on 23 Aug 2024
SQL is a programming language used for managing and querying relational databases.
SQL stands for Structured Query Language
It is used to retrieve, insert, update, and delete data in databases
Common SQL commands include SELECT, INSERT, UPDATE, DELETE
SQL is used in various database management systems like MySQL, Oracle, SQL Server
Example: SELECT * FROM customers WHERE city = 'New York';
I appeared for an interview in Mar 2025, where I was asked the following questions.
DDL and DML are SQL commands for defining and manipulating database structures and data.
DDL (Data Definition Language) commands define database structures. Examples: CREATE, ALTER, DROP.
DML (Data Manipulation Language) commands manage data within those structures. Examples: SELECT, INSERT, UPDATE, DELETE.
DDL commands affect the schema, while DML commands affect the data stored in the schema.
Example of DDL: CREATE TABLE...
I have extensive experience in technical support, troubleshooting, and customer service across various industries.
Provided technical support for software applications, resolving issues for over 100 users daily.
Implemented a ticketing system that improved response time by 30%.
Conducted training sessions for new employees on troubleshooting techniques.
Collaborated with development teams to identify and resolve recurring ...
I appeared for an interview in Mar 2025, where I was asked the following questions.
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