Zepto Interview Questions, Process, and Tips

Negative testcases for cart value less than 1000

• Add a product with a price less than 1000 to the cart

• Remove all products from the cart and check if the total value is less than 1000

• Add multiple products to the cart but ensure the total value is less than 1000

HTTP status codes are standardized codes used to indicate the result of a HTTP request.

• 1. 2xx - Success: Request was successful (e.g. 200 OK)

• 2. 3xx - Redirection: Further action needs to be taken (e.g. 301 Moved Permanently)

• 3. 4xx - Client Error: Request cannot be fulfilled (e.g. 404 Not Found)

• 4. 5xx - Server Error: Server failed to fulfill a valid request (e.g. 500 Internal Server Error)

To check backward compatibility in API after BE changes are deployed on PROD, perform regression testing on existing functionalities.

• Perform regression testing on existing API functionalities to ensure they still work as expected after BE changes

• Check if any existing API endpoints have been deprecated or modified due to BE changes

• Verify if any new API endpoints have been added and test their functionality

• Ensure that th...read more

GET retrieves data, POST submits data, PUT updates data, PATCH partially updates data

• GET is used to retrieve data from a server

• POST is used to submit data to a server

• PUT is used to update existing data on a server

• PATCH is used to partially update existing data on a server

Use network monitoring tools and simulate different network conditions to test network latency in mobile apps.

• Use network monitoring tools like Wireshark or Charles Proxy to analyze network traffic and identify latency issues.

• Simulate different network conditions (3G, 4G, WiFi, etc.) using tools like Network Link Conditioner on iOS or Android Emulator on Android.

• Measure latency by sending requests to a server and calcu...read more

POST method is more secure than GET method for transmitting sensitive data.

• POST method sends data in the request body, making it more secure as the data is not visible in the URL.

• GET method sends data in the URL, which can be visible in browser history, server logs, and can be easily intercepted.

• POST method is recommended for transmitting sensitive information like passwords, credit card details, etc.

• GET method is comm...read more

Update the name of employee with 3rd highest salary in SQL

• Use a subquery to find the 3rd highest salary

• Join the subquery with the EMPLOYEE table on salary to get the employee name

• Use the UPDATE statement to update the name of the employee

A RACE condition is a situation in which the outcome of a program depends on the order of execution of its components.

• Occurs in concurrent programming when multiple threads access shared data and the outcome depends on the order of execution

• Can lead to unpredictable behavior and bugs in the program

• Example: Two threads trying to increment the same variable simultaneously can result in incorrect values due to race condit

Implementing an accordion feature using vanilla JavaScript

• Create HTML structure with headings and content sections

• Add event listener to headings to toggle visibility of content

• Use CSS to style accordion for better user experience

A polyfill for Promise.all is a code snippet that provides the functionality of Promise.all for browsers that do not support it natively.

• Polyfill for Promise.all can be implemented using a combination of Promise, Array.prototype.map, and Array.prototype.reduce.

• It allows you to wait for multiple promises to resolve and then returns an array of their results.

• Example: const promise1 = Promise.resolve(3); const promise2 = ...read more

Audit planning involves systematic review of inventory records, physical counts, and reconciliation to identify missing SKUs.

• Review inventory records to identify discrepancies

• Conduct physical counts of inventory to compare with records

• Reconcile physical counts with inventory records to pinpoint missing SKUs

• Investigate potential reasons for missing SKUs such as theft, misplacement, or recording errors

Experienced Cluster Manager with a proven track record of successfully leading teams to achieve sales targets and drive business growth.

• Over 5 years of experience in managing multiple clusters and overseeing operations

• Strong leadership skills with the ability to motivate and inspire team members

• Expertise in developing and implementing strategic plans to meet and exceed sales goals

• Excellent communication and interperson...read more

To complete 2,000 orders in 20 hours with a productivity rate of 210 orders per hour, you would need 10 employees.

• One employee can complete 210 orders per hour

• To complete 2,000 orders in 20 hours, you would need 10 employees (2,000 orders / 20 hours = 100 orders per hour; 100 orders per hour / 210 orders per hour per employee = 10 employees)