Paisabazaar.com Interview Questions and Answers

Cache stores temporary data for faster access, while cookies store user-specific data for tracking and personalization.

• Cache is used to speed up web page loading by storing static resources like images and scripts.

• Cookies are small text files stored on the user's device to remember user preferences and sessions.

• Example of cache: A web browser caching images so they don't need to be downloaded again.

• Example of cookies: ...read more

Deleting cookies primarily affects web browsing experience, not the device itself.

• Cookies store user preferences and session information, so deleting them may log you out of websites.

• For example, if you delete cookies from an e-commerce site, you may lose your shopping cart items.

• Cookies can also store tracking information, so deleting them may reset targeted ads.

• However, deleting cookies does not affect device perform...read more

Severity refers to the impact of a defect, while priority indicates its urgency for fixing.

• Severity is about the impact on the system; for example, a crash is high severity.

• Priority is about the urgency of fixing the issue; for example, a typo in a non-critical report.

• A high-severity issue with low priority could be a crash in a rarely used feature.

• Another example is a security vulnerability in a feature that is not cu...read more

PUT, POST, and PATCH are HTTP methods used for sending data to APIs, each serving different purposes in resource management.

• PUT: Used to update or replace a resource at a specific URI. Example: PUT /users/1 updates user with ID 1.

• POST: Used to create a new resource. Example: POST /users creates a new user.

• PATCH: Used to apply partial modifications to a resource. Example: PATCH /users/1 updates only the email of user wi...read more

HTTP status code 201 indicates successful resource creation, while 500 signifies a server error.

• 201 Created: Indicates that a request has been fulfilled and a new resource has been created.

• Example of 201: When a user registers on a website, the server responds with 201 if the account is successfully created.

• 500 Internal Server Error: Indicates that the server encountered an unexpected condition that prevented it from f...read more

Authentication verifies identity; authorization determines access rights.

• Authentication is the process of verifying who a user is.

• Authorization is the process of determining what a user can do.

• Example of authentication: Logging in with a username and password.

• Example of authorization: A user with admin rights can access all files, while a regular user cannot.

Selenium provides various locators to identify web elements for automation testing.

• 1. ID: Locates elements by their unique ID attribute. Example: driver.findElement(By.id('username'));

• 2. Name: Locates elements by their name attribute. Example: driver.findElement(By.name('password'));

• 3. Class Name: Locates elements by their class attribute. Example: driver.findElement(By.className('btn-submit'));

• 4. Tag Name: Locates ele...read more

Web.driver.close() closes the current browser window, while Web.driver.quit() closes all browser windows and ends the WebDriver session.

• Web.driver.close() only closes the active window, leaving other windows open.

• Example: If you have multiple tabs open, close() will only close the tab in focus.

• Web.driver.quit() terminates the entire WebDriver session, closing all windows.

• Example: After running tests, quit() ensures all...read more

Mobile applications can be categorized into various types based on their functionality and technology.

• Native Apps: Built for specific platforms (e.g., iOS, Android) using platform-specific languages (e.g., Swift, Kotlin).

• Web Apps: Accessed via browsers, responsive to different screen sizes (e.g., Google Docs, Facebook).

• Hybrid Apps: Combine elements of both native and web apps, using frameworks like Ionic or React Nativ...read more

Closures are functions that capture the lexical scope in which they are defined, allowing access to variables from that scope.

• Closures allow a function to remember its lexical scope even when the function is executed outside that scope.

• Example: A function defined inside another function can access variables from the outer function.

• Closures are often used for data encapsulation and maintaining state in JavaScript.

• They c...read more

Promises are objects in JavaScript that represent the eventual completion or failure of an asynchronous operation.

• A promise can be in one of three states: pending, fulfilled, or rejected.

• Example: const myPromise = new Promise((resolve, reject) => { /* async operation */ });

• You can handle the result of a promise using .then() for success and .catch() for errors.

• Example: myPromise.then(result => console.log(result)...read more

JavaScript architecture involves its event-driven, non-blocking I/O model, enabling efficient execution of code in web applications.

• JavaScript is single-threaded, using an event loop to handle asynchronous operations.

• The call stack manages function execution, while the event queue holds messages for processing.

• JavaScript uses a prototype-based inheritance model, allowing objects to inherit properties from other objects...read more

MVVM (Model-View-ViewModel) is a software architectural pattern used for designing user interfaces.

• Separation of concerns: MVVM divides the application into three main components.

• Model: Represents the data and business logic (e.g., a class that fetches user data).

• View: The UI layer that displays data (e.g., XAML in WPF applications).

• ViewModel: Acts as a bridge between Model and View, handling presentation logic (e.g., ...read more

Yes, I have extensive experience with CRM tools and managing teams in digital marketing environments.

• Utilized Salesforce for lead management and tracking customer interactions, improving conversion rates by 20%.

• Led a team of 5 in implementing HubSpot, enhancing our email marketing campaigns and increasing open rates by 30%.

• Conducted training sessions for team members on CRM best practices, resulting in a 15% increase i...read more

Yes, I have extensive experience in Meta and WhatsApp marketing, leveraging both platforms for effective campaigns.

• Developed targeted ad campaigns on Meta, resulting in a 30% increase in engagement for a retail client.

• Utilized WhatsApp for customer support, improving response times and customer satisfaction scores by 25%.

• Implemented A/B testing on Meta ads to optimize conversion rates, achieving a 15% higher ROI.

• Create...read more