IBM Automation Test Specialist Interview Questions and Answers for Experienced

Program to find 2nd highest number in array without sorting.

• Iterate through array to find highest and second highest numbers

• Initialize variables to store highest and second highest numbers

• Compare each element with highest and second highest numbers

Program to add values into a hashmap in Java.

• Create a new HashMap object.

• Use the put() method to add key-value pairs into the hashmap.

• Keys must be unique, values can be duplicated.

• Example: HashMap map = new HashMap<>(); map.put("A", 1);

Main concepts of OOPS in Java include inheritance, encapsulation, polymorphism, and abstraction.

• Inheritance: Allows a class to inherit properties and behavior from another class. Example: class B extends class A.

• Encapsulation: Bundling data and methods that operate on the data into a single unit. Example: private variables with public getter and setter methods.

• Polymorphism: Ability of a method to do different things ba...read more

Different HTTP codes used in Rest Assured

• 200 - OK: Request was successful

• 201 - Created: Request was successful and a new resource was created

• 400 - Bad Request: Request was invalid

• 401 - Unauthorized: Request requires user authentication

• 404 - Not Found: Requested resource was not found

• 500 - Internal Server Error: Server encountered an unexpected condition

Code using Rest Assured for checking status code

• Import Rest Assured library

• Use given() method to specify the base URI

• Use when() method to specify the HTTP method and endpoint

• Use then() method to validate the status code

String is immutable in Java to ensure security, thread safety, and optimization.

• Immutable strings prevent accidental modification of data.

• Immutable strings can be safely shared among multiple threads.

• Immutable strings allow for efficient memory allocation and caching.

• Immutable strings are used in various security-related operations.

• Immutable strings enable the use of string pooling for optimization.

The second non-repetitive character is to be found in a given array of strings.

• Iterate through each character in the strings and count their occurrences

• Identify the characters that occur only once

• Return the second non-repetitive character

API testing with Rest API involves testing the functionality, performance, and security of API endpoints.

• Understand the API documentation to identify endpoints, parameters, and expected responses

• Test different HTTP methods like GET, POST, PUT, DELETE

• Verify response codes, headers, and payload data

• Perform boundary value analysis and negative testing

• Use tools like Postman or RestAssured for automation testing

• Validate aut...read more