CRED Sdet Interview Questions and Answers

Merging two sorted arrays into a single sorted array

• Create a new array to store the merged result

• Iterate through both arrays simultaneously, comparing elements and adding the smaller one to the result array

• Handle cases where one array is longer than the other by appending the remaining elements

Patch and post are HTTP methods used in API testing to update and create resources, respectively.

• PATCH method is used to update an existing resource in the API

• POST method is used to create a new resource in the API

• Both methods are commonly used in RESTful APIs for CRUD operations

• Example: PATCH /api/users/123 to update user with ID 123

• Example: POST /api/users to create a new user

My automation framework is a data-driven framework using Selenium WebDriver and TestNG for test execution and reporting.

• Uses Selenium WebDriver for interacting with web elements

• Utilizes TestNG for test execution and reporting

• Follows a data-driven approach for test data management

To verify login functionality, we need to test the login process with valid and invalid credentials.

• Test login with valid credentials and ensure user is logged in successfully

• Test login with invalid credentials and ensure appropriate error message is displayed

• Test login with blank username or password and ensure appropriate error message is displayed

• Test login with special characters in username or password and ensure

A 3 tier app has a presentation layer, application layer, and database layer.

• Presentation layer handles user interface and input/output

• Application layer processes logic and business rules

• Database layer stores and retrieves data

• Each layer communicates with the layer above and below it

• Example: Web app with front-end (presentation), server-side code (application), and database (data)