HARMAN Interview Questions, Process, and Tips

Q1. What is copy constructor? Write Syntax? Why there's const and & in the syntax of copy constructor.
Ans. 
Copy constructor creates a new object by copying an existing object.
• Copy constructor is used to create a new object by copying an existing object.

• Syntax: ClassName(const ClassName& obj)

• The const keyword ensures that the original object is not modified.

• The & symbol is used to pass the object by reference, which is more efficient than passing by value.

• Copy constructor is automatically called when a new object is created
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Q2. Major Pillar of OOPS, Abstraction vs Encapsulation
Ans. 
Abstraction and Encapsulation are two major pillars of OOPS.
• Abstraction is the process of hiding complex implementation details and showing only the necessary information to the user.

• Encapsulation is the process of wrapping data and methods into a single unit and restricting access to the data from outside the unit.

• Abstraction is achieved through abstract classes and interfaces.

• Encapsulation is achieved through access ...read more
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Q3. Casting Operators in C++, dynamic_cast when it is used?
Ans. 
dynamic_cast is used in C++ to perform safe downcasting of polymorphic types.
• dynamic_cast is used to convert a pointer/reference of a base class to a pointer/reference of a derived class.

• It is used when we want to access a derived class member function or variable using a base class pointer/reference.

• If the conversion is not possible, dynamic_cast returns a null pointer for pointers or throws a bad_cast exception for r
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Q1. What platform you worked on? Linux, Windows? System configuration?
Ans. 
I have worked on both Linux and Windows platforms with various system configurations.
• Proficient in Linux command line interface and shell scripting

• Experience in Windows Server administration and Active Directory management

• Familiarity with virtualization technologies such as VMware and VirtualBox

• Knowledge of system configuration management tools like Ansible and Puppet
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Q2. What is Q_Object Macro in Qt?
Ans. 
Q_Object Macro is a Qt macro used to declare a class as a QObject.
• Q_Object Macro is used to enable signals and slots mechanism in a class.

• It is used to declare a class as a QObject and to inherit from QObject.

• It is used to enable the use of Qt's meta-object system in a class.

• It is used to enable dynamic properties and object names in a class.
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Q3. Connect statement in Qt qnd it's parameters? MOC compiler in Qt?
Ans. 
Connect statement is used to connect signals and slots in Qt. MOC compiler generates meta-object code for Qt classes.
• Connect statement connects a signal to a slot or a signal to another signal.

• Parameters of connect statement include sender object, signal name, receiver object, slot name, and optional connection type.

• MOC compiler generates meta-object code for Qt classes which enables features like signals and slots, in
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Q1. Tell me about yourself.
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Q2. Reason to leave your current company?
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Q1. How can multiple elements in a dropdown be selected using Selenium? Explain Agile methodology? CI/CD Execution?
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Q2. What is API testing? What is the syntax for validating hyperlinks? What is deferred Defects?
Ans. 
API testing evaluates the functionality, reliability, and performance of application programming interfaces.
• API testing focuses on the business logic layer of the software architecture.

• It involves sending requests to the API and validating the responses.

• Common tools for API testing include Postman, SoapUI, and JMeter.

• Example of validating hyperlinks: Use assertions to check if the response code is 200 for a valid URL.

• D...read more
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Q3. Annotations in selenium?
Ans. 
Annotations in Selenium are metadata that provide additional information about test methods and their execution.
• Annotations help in organizing test cases and managing test execution.

• @Test: Marks a method as a test method.

• @Before: Indicates that a method should run before each test method.

• @After: Indicates that a method should run after each test method.

• @BeforeClass: Indicates that a method should run once before any te...read more
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Everything was fine. The Hr was nice and the manager also.

Q1. What is your experience from your previous work?
Ans. 
I have 5 years of experience working as a Test Engineer in the software industry.
• Developed and executed test cases to ensure software quality

• Performed regression testing to identify bugs and issues

• Collaborated with developers to resolve defects and improve product performance
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Q2. Mx experience from my previous work
Ans. 
I have 5 years of experience working as a Test Engineer in the software industry.
• Developed and executed test cases to ensure software quality

• Performed regression testing to identify bugs and issues

• Collaborated with developers to resolve issues and improve product quality
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Q1. Explain activity lifecycle
Ans. 
Activity lifecycle refers to the series of states an activity goes through during its lifetime in an Android app.
• onCreate() - activity is created

• onStart() - activity becomes visible to the user

• onResume() - activity is interacting with the user

• onPause() - activity is partially visible but still running

• onStop() - activity is no longer visible to the user

• onDestroy() - activity is being destroyed
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Q2. MVVM Architecture explain
Ans. 
MVVM is an architectural pattern used in software development, particularly in Android apps, to separate the user interface from the business logic.
• MVVM stands for Model-View-ViewModel

• Model represents the data and business logic

• View is the UI component that displays the data and interacts with the user

• ViewModel acts as a mediator between the Model and the View, handling user interactions and updating the Model

• MVVM help...read more
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