Tech Mahindra Senior Developer Interview Questions and Answers

Using sliding window technique to find subarray with sum equal to k.

• Initialize two pointers at the start of the array.

• Move the right pointer to expand the window until the sum is greater than or equal to k.

• Move the left pointer to shrink the window if the sum exceeds k.

• Repeat until the end of the array is reached.

• Example: Input array [1, 4, 20, 3, 10, 5], k=33. Output: [20, 3, 10].

I want to join TCS because of its reputation for innovation and growth opportunities.

• TCS is known for its cutting-edge technology solutions

• Opportunities for career advancement and skill development

• Global presence and diverse client base

Custom settings are org-specific, while custom metadata can be deployed across orgs.

• Custom settings are hierarchical and can be accessed using a hierarchy custom setting type

• Custom metadata is deployable and can be used in managed packages

• Custom settings are stored in the application cache, while custom metadata is stored in the metadata cache

Profile is a summary of a person's skills and experience, while role is the specific job or position they hold within an organization.

• Profile is a broader overview of a person's qualifications and background.

• Role is a specific set of responsibilities and tasks assigned to an individual within a company.

• Profiles can include education, work experience, skills, and achievements.

• Roles can be defined by job titles such as S...read more

A singleton class is a class that can only have one instance created throughout the application.

• Singleton classes are often used for logging, caching, database connections, and thread pools.

• They have a private constructor to prevent multiple instances from being created.

• The class typically provides a static method to access the single instance.

Method reference is a shorthand syntax for lambda expressions to call a method.

• Method reference is used to refer to a method without invoking it.

• It can be used to make code more concise and readable.

• There are four types of method references: static, instance, constructor, and array constructor.

Writing code in eggplant for Senior Developer interview

• Use 'click' to simulate a mouse click on an element

• Use 'typeText' to enter text into a field

• Use 'verify' to check if an element is present on the screen