DXC Technology Software Testing Engineer Interview Questions and Answers for Freshers

Q1. What is sanity testing
Ans. 
Sanity testing is a subset of regression testing that quickly checks if the major functionalities of the software are working as expected.
• Sanity testing is performed after a software build to ensure its basic functionality is intact.

• It focuses on testing the critical features and functionalities of the software.

• It is a quick and shallow form of testing to determine if further testing is required.

• Sanity testing is not e...read more
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Q2. What is automation testing
Ans. 
Automation testing is the use of software tools to execute test cases and compare actual outcomes with expected outcomes.
• Automation testing involves writing scripts or using tools to automate repetitive tasks.

• It helps in reducing human errors and increases efficiency.

• It is used to test software applications, websites, and systems.

• Examples of automation testing tools include Selenium, Appium, and JUnit.
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Q3. What is oops concepts
Ans. 
OOPs concepts are the fundamental principles of Object-Oriented Programming that help in designing and implementing software systems.
• Encapsulation: Wrapping data and methods into a single unit

• Inheritance: Acquiring properties and behavior of a parent class

• Polymorphism: Ability of objects to take on multiple forms

• Abstraction: Hiding implementation details and showing only functionality

• Examples: Java, C++, Python, Ruby
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Q4. What is regression testing
Ans. 
Regression testing is the process of testing changes made to a software application to ensure that existing functionality still works.
• It is performed after making changes to the software application

• It ensures that existing functionality is not affected by the changes

• It helps to identify any new defects introduced by the changes

• It can be automated to save time and effort

• Examples include testing after bug fixes, new feat
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Q5. What is access specifier
Ans. 
Access specifier defines the scope of a class member.
• Access specifiers are public, private, and protected.

• Public members can be accessed from anywhere.

• Private members can only be accessed within the class.

• Protected members can be accessed within the class and its subclasses.

• Access specifiers help in encapsulation and data hiding.
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Q6. What is agile methodology
Ans. 
Agile methodology is an iterative approach to software development that emphasizes flexibility and customer satisfaction.
• Agile methodology values individuals and interactions over processes and tools

• It emphasizes working software over comprehensive documentation

• It involves frequent collaboration with customers and stakeholders

• It allows for changes and adjustments to be made throughout the development process

• Examples of...read more
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Q7. What is manual testing
Ans. 
Manual testing is a process of verifying software manually without the use of automation tools.
• It involves executing test cases manually to identify defects

• It requires human intervention to simulate real-world scenarios

• It is time-consuming and requires a lot of effort

• It is useful for testing user interface, usability, and exploratory testing

• Examples include ad-hoc testing, exploratory testing, and regression testing
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Q1. What are your salary expectations?
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Q2. Why are you looking for a change?
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Q3. What are your strengths and weaknesses?
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Q4. Tell me about yourself.
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Q1. C++ ds, and testing
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Round duration - 30 Minutes
Round difficulty - Medium

Q1. 
Maximal AND Subsequences Problem
Given an array consisting of N integers, your task is to determine how many k-element subsequences of the given array exist where the bitwise AND of the subsequence's elem...read more
Ans. 
The task is to find the maximal AND value and the number of subsequences having this maximal AND value.
• Iterate through all possible k-element subsequences of the given array

• Calculate the bitwise AND of each subsequence

• Track the maximal AND value and the count of subsequences with this value

• Return the maximal AND value and the count modulo 1000000007
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Round duration - 40 Minutes
Round difficulty - Medium

Timing( was it late night)
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How the interviewer was? (If it was there any interview)

Round duration - 60 Minutes
Round difficulty - Hard

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Timing( was it late night)
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Q1. What is virtual memory?
Ans. 
Virtual memory is a memory management technique that allows an operating system to use disk space as an extension of RAM.
• Virtual memory allows running programs to use more memory than physically available.

• It provides a larger address space for programs to store data and instructions.

• Virtual memory uses a combination of RAM and disk space to store data.

• It helps in multitasking by allowing multiple programs to run simult...read more
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