100+ Senior Automation Engineer Interview Questions and Answers

Answers to interview questions for Senior Automation Engineer

• 1. Using recursion to print numbers

• 2. Using nested loops to compare each element

• 3. Alert is a pop-up window while verify is a method to check if an element is present

• 4. Verify will continue the test even if the assertion fails

• 5. A class that can only have one instance at a time

• 6. Use explicit wait on the flag element

Answers to interview questions for Senior Automation Engineer position

• Abstract classes and interfaces are used for creating reusable code and implementing polymorphism

• Example of abstract class: WebDriver in Selenium

• Example of interface: WebElement in Selenium

• Reverse string program can be implemented using StringBuilder or char array

• List is ordered and allows duplicates, Set is unordered and does not allow duplicates

• Exception handling in Selenium can be done using try-catch bl...read more

Jenkins is a popular open-source automation server used for continuous integration and continuous delivery of software projects.

• Jenkins is used to automate the non-human part of the software development process, with continuous integration and facilitating technical aspects of continuous delivery.

• It allows for easy configuration of pipelines to automate the build, test, and deployment processes.

• Setting up a pipeline in Jenkins involves creating a Jenkinsfile which defines the...read more

BDD stands for Behavior Driven Development. Cucumber is a BDD tool that uses Gherkin syntax. SpecFlow is a BDD tool for .NET.

• BDD (Behavior Driven Development) is a software development approach that focuses on the behavior of the system.

• Cucumber is a BDD tool that uses Gherkin syntax to write test scenarios in a human-readable format.

• SpecFlow is a BDD tool specifically designed for .NET projects, allowing developers to write executable specifications using Gherkin syntax.

Creating interface, abstract class, and implementing them in a new class with a common method

• To create an interface in Java, use the 'interface' keyword and define the methods without implementation

• To create an abstract class in Java, use the 'abstract' keyword before the class definition and can have both abstract and concrete methods

• To implement an interface in a class, use the 'implements' keyword and provide implementation for all the methods defined in the interface

• To ex...read more

Log levels are used to categorize log messages based on their severity. Common levels include DEBUG, INFO, WARN, ERROR, and FATAL.

• Log levels help in filtering and managing log messages based on their importance and severity.

• Different log levels include DEBUG, INFO, WARN, ERROR, and FATAL, each indicating the severity of the message.

• Log libraries like Log4j, Logback, and SLF4J are commonly used in projects to handle logging with different log levels.

• For example, in Log4j, you ...read more

My approach would be to first understand the project requirements, identify the tools and technologies needed, and then design a modular and scalable framework.

• Understand project requirements

• Identify tools and technologies needed

• Design a modular and scalable framework

• Create a folder structure for the framework

• Define coding standards and guidelines

• Implement reusable functions and libraries

• Integrate with version control system

• Implement reporting and logging mechanisms

• Create tes...read more

Various authentication mechanisms include password-based, biometric, multi-factor, and OAuth.

• Password-based authentication

• Biometric authentication (e.g. fingerprint, facial recognition)

• Multi-factor authentication (e.g. SMS code, token generator)

• OAuth (Open Authorization) for third-party authentication

HashMap is recommended due to better performance and allows null values, while HashTable is synchronized.

• HashMap is not synchronized, so it is faster than HashTable for single-threaded applications.

• HashMap allows null values and null keys, while HashTable does not.

• HashMap is part of the Java Collections Framework, while HashTable is a legacy class.

• Example: HashMap<String, Integer> map = new HashMap<>();

• Example: HashTable<String, Integer> table = new HashTable<>();

Create a dictionary to store word frequency from a given string.

• Split the string into words using space as delimiter

• Iterate through the words and update the frequency in the dictionary

• Handle case sensitivity and punctuation marks appropriately

Filter names starting with 'a' using LinQ expressions on a List<string>.

• Use LinQ Where method with a lambda expression to filter names starting with 'a'.

• Example: var filteredNames = lst.Where(name => name.StartsWith('a')).ToArray();

Program to reverse a string and remove duplicates from it.

• Create a function to reverse the string using a loop or built-in function

• Create a function to remove duplicates using a loop or built-in function

• Split the string by the delimiter and join it with space

To find the 2nd highest number from an array, sort the array in descending order and return the element at index 1.

• Sort the array in descending order using a sorting algorithm like bubble sort or quicksort.

• Return the element at index 1, which will be the 2nd highest number.

Use Linq to create a dictionary with elements from a list as keys and their lengths as values.

• Use ToDictionary method with element as key and element length as value

• Use Select method to project each element to a KeyValuePair

Five basic items to jumpstart API Automation

• Understand the API documentation

• Select a suitable automation tool (e.g. Postman, SoapUI)

• Set up a testing environment

• Write test cases for API endpoints

• Implement continuous integration for automated testing

Some common design patterns include Singleton, Factory, Observer, and Strategy patterns.

• Singleton pattern ensures a class has only one instance and provides a global point of access to it.

• Factory pattern creates objects without specifying the exact class of object that will be created.

• Observer pattern defines a one-to-many dependency between objects so that when one object changes state, all its dependents are notified and updated automatically.

• Strategy pattern defines a fami...read more

In an escalation, I would assess the situation, communicate effectively, and implement solutions to mitigate issues promptly.

• Assess the root cause of the escalation by gathering data and feedback from the team.

• Communicate transparently with stakeholders to keep them informed of the situation.

• Prioritize tasks based on urgency and impact to address the most critical issues first.

• Implement corrective actions, such as adjusting automation scripts or processes, to resolve the prob...read more

As an automation testing activity, I perform tasks such as creating and executing automated test scripts, analyzing test results, and reporting defects.

• Creating and maintaining automated test scripts using tools like Selenium, Appium, or TestComplete

• Executing automated test scripts and analyzing test results to identify defects

• Reporting defects and working with developers to resolve them

• Integrating automated tests into the continuous integration and delivery pipeline

• Collabora...read more

TestNG provides retry mechanisms to automatically re-run failed tests, enhancing test reliability and coverage.

• TestNG allows the use of the IRetryAnalyzer interface to define custom retry logic.

• You can implement the retry logic by creating a class that implements IRetryAnalyzer and overriding the retry method.

• Example: If a test fails, the retry method can return true to re-execute the test up to a specified limit.

• You can specify the retry analyzer in your test class using the...read more

Use SQL GROUP BY and HAVING to find duplicate emails in a table.

• Use SELECT statement to specify the email column.

• GROUP BY the email column to aggregate results.

• Use HAVING COUNT(email) > 1 to filter duplicates.

• Example query: SELECT email, COUNT(email) FROM users GROUP BY email HAVING COUNT(email) > 1;

To override a method in a child class, use the 'override' keyword in the child class method definition.

• Use the 'override' keyword before the method signature in the child class.

• The method in the child class must have the same name, return type, and parameters as the method in the parent class.

• The overridden method in the child class can call the parent class method using 'base.MethodName()'.

Types of testing include functional testing, non-functional testing, manual testing, automated testing, regression testing, and performance testing.

• Functional testing: Testing the functionality of the software against the requirements.

• Non-functional testing: Testing aspects like performance, usability, and security.

• Manual testing: Testing performed manually by testers without the use of automation tools.

• Automated testing: Testing performed using automation tools to increase e...read more

I have worked on various automation frameworks including keyword-driven, data-driven, and hybrid frameworks.

• Keyword-driven framework: Utilizes keywords to define test steps and actions.

• Data-driven framework: Separates test data from test scripts to allow for easy data manipulation.

• Hybrid framework: Combines the features of both keyword-driven and data-driven frameworks for flexibility and reusability.

Epam Anywhere is a platform that connects remote tech professionals with global companies for project-based work.

• Epam Anywhere is a platform created by Epam Systems, a global IT services company.

• It allows remote tech professionals to work on project-based assignments for global companies.

• Professionals can choose projects based on their skills and availability.

• Companies can access a pool of talented professionals from around the world for their projects.

• Epam Anywhere provides ...read more

Java exceptions are events that disrupt normal program flow, categorized into checked and unchecked exceptions.

• Checked Exceptions: Must be declared or handled. Example: IOException.

• Unchecked Exceptions: Runtime exceptions, not required to be declared. Example: NullPointerException.

• Error: Serious issues that applications should not try to catch. Example: OutOfMemoryError.

• Try-Catch Block: Used to handle exceptions. Example: try { // code } catch (Exception e) { // handle }.

• Fina...read more

To print the characters of my name which are not repetitive, I would iterate through each character and only print those that appear once.

• Iterate through each character in the name

• Check if the character appears only once in the name

• Print the character if it is not repetitive

Attributes used in Nunit for parallel execution include Parallelizable and MaxDegreeOfParallelism.

• Parallelizable attribute is used to specify that a test fixture can be run in parallel with others

• MaxDegreeOfParallelism attribute is used to specify the maximum number of threads to use for parallel execution