Test Yantra Software Solutions Interview Questions and Answers

B2B, or business-to-business, refers to transactions and relationships between businesses rather than between businesses and consumers.

• Definition: B2B involves companies selling products or services to other companies, such as a manufacturer selling to a wholesaler.

• Examples: A software company providing enterprise solutions to other businesses, like Salesforce offering CRM software to various industries.

• Sales Cycl...read more

Test cases for a login system ensure functionality, security, and user experience are validated effectively.

• Verify valid login with correct username and password.

• Check error message for invalid username.

• Check error message for invalid password.

• Test login with empty username and password fields.

• Verify password visibility toggle functionality.

• Check 'Remember Me' functionality for session persistence.

• Test login attem...read more

SOLID principles are five design principles aimed at making software designs more understandable, flexible, and maintainable.

• S - Single Responsibility Principle: A class should have one reason to change. Example: A class handling user data should not also handle logging.

• O - Open/Closed Principle: Software entities should be open for extension but closed for modification. Example: Using interfaces to add new featur...read more

An interface defines a contract for classes, specifying methods and properties without implementation details.

• An interface is a reference type in programming that defines a set of methods and properties.

• Classes that implement an interface must provide concrete implementations for its members.

• Interfaces support multiple inheritance, allowing a class to implement multiple interfaces.

• Example: In Java, 'Runnable' is a...read more

A constructor is a special method in a class that initializes objects when they are created.

• Constructors have the same name as the class.

• They do not have a return type, not even void.

• Constructors can be overloaded, allowing multiple ways to initialize an object.

• Example: In Java, 'public MyClass() { }' is a default constructor.

• If no constructor is defined, a default constructor is provided by the compiler.

Project structure defines the organization of files, directories, and components in a software project.

• 1. Root Directory: Contains main project files and folders, e.g., 'src', 'tests', 'docs'.

• 2. Source Code: 'src' folder holds application code, e.g., 'app.js' for a JavaScript project.

• 3. Test Directory: 'tests' folder contains test scripts, e.g., 'test_app.py' for Python unit tests.

• 4. Documentation: 'docs' folder i...read more

OOP (Object-Oriented Programming) is a programming paradigm based on objects and classes, promoting code reusability and modularity.

• Encapsulation: Bundling data and methods that operate on the data within one unit (e.g., a class).

• Inheritance: Mechanism to create a new class using properties and methods of an existing class (e.g., a 'Dog' class inheriting from an 'Animal' class).

• Polymorphism: Ability to present the...read more

I am familiar with protocols such as HTTP, HTTPS, TCP/IP, FTP, SMTP, and SNMP.

• HTTP - Hypertext Transfer Protocol used for web communication

• HTTPS - Secure version of HTTP using SSL/TLS encryption

• TCP/IP - Transmission Control Protocol/Internet Protocol for network communication

• FTP - File Transfer Protocol for transferring files over a network

• SMTP - Simple Mail Transfer Protocol for sending emails

• SNMP - Simple Networ...read more