10+ Protechsoft Technologies Interview Questions and Answers

Severity and priority are terms used in software testing to prioritize and categorize defects.

• Severity refers to the impact of a defect on the system or application under test.

• Priority refers to the order in which defects should be fixed based on business needs.

• Severity is usually categorized as high, medium, or low.

• Priority is usually categorized as high, medium, or low as well.

• Examples: A critical defect causing the application to crash has high severity and high priority.

• A...read more

SDLC stands for Software Development Life Cycle. It is a process followed to develop software applications.

• SDLC is a structured approach that consists of various phases such as requirements gathering, design, development, testing, deployment, and maintenance.

• It provides a framework for the development team to plan, build, and deliver high-quality software.

• There are different SDLC methodologies like Waterfall, Agile, and DevOps.

• Waterfall follows a sequential approach where eac...read more

Program for different types of books using Inheritance Concept

• Create a Book class as the parent class

• Create Paperbook, E-book, and Audiobook classes as child classes

• Inherit properties and methods from the Book class

• Add unique properties and methods to each child class

• Example: Paperbook class can have a property for number of pages

• Example: E-book class can have a property for file format

Testing is the process of evaluating a system or component to determine if it meets specified requirements.

• Testing is done to identify defects or errors in software.

• It involves executing a program or system with the intent of finding bugs.

• Testing ensures that the software meets the desired quality standards.

• It includes various techniques like functional testing, performance testing, etc.

• Test cases are designed to cover different scenarios and validate the system's behavior.

• Ex...read more

Smoke testing is a subset of sanity testing. Smoke testing verifies basic functionality, while sanity testing checks for major issues.

• Smoke testing is performed to ensure that the critical functionalities of the software are working fine after a build.

• Sanity testing is performed to check if the major functionalities of the software are working as expected after a minor change or bug fix.

• Smoke testing is a subset of sanity testing, focusing on a narrow set of core functionalit...read more

Agile and waterfall models are two different approaches to software development.

• Agile is an iterative and flexible approach, while waterfall is a sequential and rigid approach.

• Agile focuses on delivering working software in short iterations, while waterfall follows a linear process.

• Agile encourages collaboration and adaptability, while waterfall emphasizes planning and documentation.

• Agile allows for changes and feedback throughout the development process, while waterfall requ...read more

Bug life cycle is the process of identifying, reporting, fixing, retesting, and closing a software bug.

• Bug is identified by a tester during testing phase

• Bug is reported with detailed information like steps to reproduce, expected and actual results

• Bug is assigned to a developer for fixing

• Developer fixes the bug and marks it as 'Fixed'

• Tester retests the bug to verify if it is resolved

• If the bug is not resolved, it is reopened and assigned back to the developer

• If the bug is reso...read more

The 'this' operator refers to the object that is currently executing the code.

• The value of 'this' depends on how a function is called.

• In a method, 'this' refers to the object that owns the method.

• In a regular function, 'this' refers to the global object (window in a browser).

• In an event handler, 'this' refers to the element that received the event.

• The value of 'this' can be explicitly set using call(), apply(), or bind() methods.

Test cases for a login page

• Verify login with valid credentials

• Verify login with invalid credentials

• Verify login with empty username and password fields

• Verify login with only username field filled

• Verify login with only password field filled

• Verify login with special characters in username and password fields

• Verify login with maximum length of username and password fields

• Verify login with minimum length of username and password fields

Types of testing include functional, performance, security, usability, and compatibility testing.

• Functional testing ensures that the software meets the specified requirements.

• Performance testing checks the system's response time, scalability, and stability under different loads.

• Security testing identifies vulnerabilities and ensures data protection.

• Usability testing evaluates the user-friendliness and ease of use.

• Compatibility testing verifies the software's compatibility wit...read more

Method overriding is when a subclass provides its own implementation of a method that is already defined in its superclass.

• Method overriding is used to achieve runtime polymorphism in Java.

• The method signature (name, parameters, return type) must be the same in both the superclass and subclass.

• The access level of the overriding method cannot be more restrictive than the overridden method.

• Example: public class Animal { public void makeSound() { System.out.println("Animal is ma...read more

STLC stands for Software Testing Life Cycle. It is a process followed to ensure the quality of a software product.

• STLC is a systematic approach to testing software applications.

• It consists of various phases such as requirement analysis, test planning, test design, test execution, and test closure.

• Each phase has specific objectives and deliverables.

• STLC helps in identifying defects early in the software development life cycle.

• It ensures that the software meets the specified re...read more

An abstract class is a class that cannot be instantiated and is meant to be subclassed.

• An abstract class can have abstract methods that must be implemented by its subclasses.

• Abstract classes can also have non-abstract methods and variables.

• Abstract classes provide a way to define common behavior and characteristics for a group of related classes.

• Example: The abstract class 'Animal' can have abstract method 'makeSound()' that must be implemented by its subclasses like 'Dog' or...read more

Answering two technical questions related to Java programming.

• Double size refers to the number of bytes occupied by a double-precision floating-point value in Java, which is 8 bytes.

• The wrapper class of boolean is Boolean.

C is a procedural programming language, while C++ is an object-oriented programming language that is an extension of C.

• C is a procedural programming language, focusing on functions and procedures.

• C++ is an object-oriented programming language, allowing for classes, objects, and inheritance.

• C++ is an extension of C, adding features like classes, templates, and exception handling.

The == operator checks for equality, while the === operator checks for both equality and type.

• The == operator performs type coercion, meaning it converts the operands to a common type before comparison.

• The === operator does not perform type coercion and requires both the value and type to be the same for equality.

• For example, 1 == '1' returns true because the operands are coerced to the same type, but 1 === '1' returns false.

let is block-scoped while var is function-scoped.

• let variables are only accessible within the block they are declared in

• var variables are accessible within the entire function they are declared in

• let variables can be reassigned but not redeclared

• var variables can be both reassigned and redeclared

• let variables are a safer option for avoiding variable hoisting issues

Navigation serves the purpose of helping users move around a website or application.

• Allows users to easily access different sections of the website

• Helps users understand the structure and hierarchy of the website

• Improves user experience by providing clear and concise directions

• Can include various types of navigation such as menus, breadcrumbs, and search bars