Wipro Technical Lead Interview Questions, Process, and Tips

Q1. What automation framework have you worked on?
Ans. 
I have worked on multiple automation frameworks including Selenium, Appium, and TestNG.
• I have experience in creating and maintaining automated test scripts using Selenium WebDriver for web applications.

• I have also worked with Appium for mobile automation testing.

• TestNG has been my preferred choice for test management and reporting.

• I have also integrated automation scripts with CI/CD pipelines using tools like Jenkins.

• I...read more
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Q2. How to achieve parallel testing in selenium using Java?
Ans. 
Achieve parallel testing in Selenium using Java
• Use TestNG framework to execute tests in parallel

• Create multiple instances of WebDriver

• Use ThreadLocal to maintain thread safety

• Use Selenium Grid to distribute tests across multiple machines

• Configure TestNG XML file to specify parallel execution mode
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Q3. How to make a thread safe object in Java?
Ans. 
To make a thread safe object in Java, use synchronization or locks.
• Use synchronized keyword to ensure only one thread can access the object at a time.

• Use locks to provide more fine-grained control over synchronization.

• Use thread-safe data structures like ConcurrentHashMap or AtomicInteger.

• Avoid using static variables or mutable shared state.

• Consider using immutable objects or thread-local variables.

• Test the thread safe...read more
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Q4. What problems have you faced during framrwork implementation? How did you overcome those problems?
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Q5. What is DataParameter in TestNG?
Ans. 
DataParameter is a TestNG annotation used to pass data to test methods.
• DataParameter is used to pass data to test methods in TestNG

• It is used in conjunction with DataProvider to provide test data

• DataParameter can be used to pass multiple parameters to a test method

• Example: @Test(dataProvider = "dp", dataProviderClass = TestData.class)

• Example: public void testMethod(@DataParameter("username") String username, @DataParam
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Q6. What is Singleton pattern and how to implement it?
Ans. 
Singleton pattern restricts the instantiation of a class to one object.
• Create a private constructor to restrict object creation.

• Create a static method to return the single instance of the class.

• Use lazy initialization to create the instance only when needed.

• Ensure thread safety by using synchronized keyword or double-checked locking.

• Commonly used in database connections, logging, and configuration settings.
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Q7. What is collections framework in java?
Ans. 
Collections framework is a set of classes and interfaces that provide a way to store and manipulate groups of objects in Java.
• It includes interfaces like List, Set, and Map

• It provides implementations of these interfaces like ArrayList, HashSet, and HashMap

• It allows for easy manipulation and sorting of collections

• It is part of the Java Collections API

• Example: List names = new ArrayList<>();

• Example: Map
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Program for duplicate removal and sorting

Q1. Technical in detail
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Q1. Java 8 features
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Q2. Garbage collector changes in java 11
Ans. 
Java 11 introduced a new garbage collector called Epsilon.
• Java 11 introduced a new experimental garbage collector called Epsilon, which is a no-op garbage collector.

• Epsilon is designed for applications that do not require garbage collection, essentially turning off the garbage collector.

• This can be useful for performance testing or short-lived applications where the overhead of garbage collection is not needed.
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Q3. SOLID principles
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Q4. Kafka basics like topic, partition, consumer group
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Q1. Microservices 12 factor methodology
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Q2. API gateway concepts, service discovery
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Q3. Microservices side car pattern
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Q1. Package expectation
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Q2. Notice period negotiation
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Q1. Techinal Question on coding
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Q2. Scenario based questions
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