Cognizant Senior Automation Test Engineer Interview Questions and Answers

Q1. What are the different types of datatypes in python?
Ans. 
Python has several built-in datatypes including numeric, sequence, and mapping types.
• Numeric types include integers, floating-point numbers, and complex numbers.

• Sequence types include lists, tuples, and range objects.

• Mapping types include dictionaries.

• Other datatypes include boolean, bytes, and sets.
Answered by AI
View 1 more answer
Q2. How do you concatenate a string and integer? is it possible ?
Ans. 
Yes, it is possible to concatenate a string and integer using type conversion.
• Convert the integer to a string using str() function and then concatenate with the string.

• Use format() method to insert the integer value into the string.

• Use f-strings to directly insert the integer value into the string.
Answered by AI
Add your answer
Q3. What is xpath ? How do you find an element ? what is the difference between absolute xpath and relative xpath?
Ans. 
XPath is a language used to locate elements in an XML or HTML document. Absolute and relative XPaths differ in their starting point.
• XPath is used to navigate through elements and attributes in an XML or HTML document

• Elements can be located using absolute or relative XPaths

• Absolute XPaths start from the root node and are more specific but less flexible

• Relative XPaths start from the current node and are more flexible but...read more
Answered by AI
Add your answer
Q4. What are different locators supported in selenium?
Ans. 
Selenium supports various locators such as ID, Name, Class Name, Tag Name, Link Text, Partial Link Text, CSS Selector and XPath.
• ID locator is the most efficient and reliable locator

• Name locator is used for locating elements by their name attribute

• Class Name locator is used for locating elements by their class attribute

• Tag Name locator is used for locating elements by their tag name

• Link Text locator is used for locating...read more
Answered by AI
Add your answer
Q5. What is the difference between findelement and findelements?
Ans. 
findelement returns the first matching element while findelements returns a list of all matching elements.
• findelement is used to locate the first matching element on a web page

• findelements is used to locate all matching elements on a web page

• findelement throws NoSuchElementException if no matching element is found

• findelements returns an empty list if no matching element is found
Answered by AI
Add your answer
Q6. What are the exceptions in selenium?
Ans. 
Exceptions in Selenium are errors that occur during test execution.
• Some common exceptions in Selenium are NoSuchElementException, TimeoutException, StaleElementReferenceException, and ElementNotVisibleException.

• NoSuchElementException occurs when an element cannot be found on the page.

• TimeoutException occurs when a command takes too long to execute.

• StaleElementReferenceException occurs when an element is no longer attac...read more
Answered by AI
Add your answer
Q7. How do you select a value from dropdown in selenium?
Ans. 
To select a value from dropdown in Selenium, use the Select class and its methods.
• Locate the dropdown element using any of the locators like ID, name, class name, etc.

• Create an object of the Select class and pass the dropdown element as a parameter.

• Use the Select class methods like selectByVisibleText(), selectByValue(), or selectByIndex() to select the desired option.

• Finally, use the assert statement to verify if the ...read more
Answered by AI
Add your answer
Q8. How do you achieve synchronization? what are the differences between the synchronization ways?
Ans. 
Synchronization is the process of coordinating the execution of multiple threads to ensure proper order of execution.
• Synchronization can be achieved using techniques like locks, semaphores, and monitors.

• Locks are used to ensure that only one thread can access a shared resource at a time.

• Semaphores are used to control access to a shared resource by limiting the number of threads that can access it at once.

• Monitors are u...read more
Answered by AI
Add your answer
Q9. What is the difference between break continue and pass?
Ans. 
Break, continue and pass are control statements used in loops. Break terminates the loop, continue skips an iteration and pass does nothing.
• Break is used to terminate a loop when a certain condition is met

• Continue is used to skip an iteration of a loop when a certain condition is met

• Pass is used as a placeholder when a statement is required syntactically but no action is needed
Answered by AI
Add your answer
Q10. What is full join ?
Ans. 
Full join is a type of SQL join that returns all the rows from both tables, matching rows from both tables and nulls where there is no match.
• Full join is also known as a full outer join.

• It is used to combine data from two tables where some of the data may not match.

• The result set includes all the rows from both tables, with nulls where there is no match.

• Full join is represented by the keyword 'FULL OUTER JOIN' in SQL.

• E...read more
Answered by AI
Add your answer
Q11. Write a Query to Find Second Highest Salary in SQL
Ans. 
Query to find second highest salary in SQL
• Use the ORDER BY clause to sort the salaries in descending order

• Use the LIMIT clause to select the second highest salary

• Use a subquery to exclude the highest salary from the results
Answered by AI
Add your answer
Q12. How to fetch 1st 5 records in sql?
Ans. 
To fetch 1st 5 records in SQL, use the LIMIT clause.
• Use the SELECT statement to specify the columns to retrieve.

• Use the FROM clause to specify the table to retrieve data from.

• Use the LIMIT clause to specify the number of records to retrieve.

• The syntax is: SELECT column1, column2, ... FROM table_name LIMIT 5;

• The first 5 records will be returned.
Answered by AI
Add your answer
Q13. How do you copy a table in mysql?
Ans. 
To copy a table in MySQL, use the CREATE TABLE statement with the SELECT statement.
• Use the CREATE TABLE statement with the SELECT statement to copy a table.

• Specify the new table name after the CREATE TABLE statement.

• Specify the original table name after the SELECT statement.

• Add any additional conditions or clauses as needed.

• Example: CREATE TABLE new_table SELECT * FROM original_table WHERE condition;
Answered by AI
Add your answer
Q14. How do you fetch unique elements from a column?
Ans. 
To fetch unique elements from a column, use the DISTINCT keyword in SQL.
• Use the SELECT statement with the DISTINCT keyword.

• Specify the column name from which you want to fetch unique elements.

• Example: SELECT DISTINCT column_name FROM table_name;

• You can also use GROUP BY clause to group the unique elements based on another column.

• Example: SELECT column_name, COUNT(*) FROM table_name GROUP BY column_name;
Answered by AI
Add your answer
Q15. Write an SQL query to find names of employees start with ‘A’?
Ans. 
SQL query to find names of employees starting with 'A'
• Use the SELECT statement to retrieve data from the employee table

• Use the LIKE operator to match the names starting with 'A'

• Use the % wildcard to match any number of characters after 'A'
Answered by AI
Add your answer
Q16. How do you open a file and read repeating words from a file ?
Ans. 
To open a file and read repeating words, use file handling and string manipulation techniques.
• Open the file using file handling techniques in the programming language of your choice.

• Read the contents of the file and store it in a string variable.

• Split the string into an array of words using a delimiter such as space or comma.

• Loop through the array and use a dictionary or hash table to count the frequency of each word.

• P...read more
Answered by AI
Add your answer
Q17. How do you generate random emails in python? gmail.com is constant
Ans. 
Generating random emails in Python with constant domain
• Use the random module to generate random strings for the username part of the email

• Combine the random username with the constant domain name

• Ensure the generated email is unique if required
Answered by AI
View 1 more answer
Q18. How do you generate random data / number in python ?
Ans. 
Python provides random module to generate random data and numbers.
• Import random module

• Use random.randint() to generate random integer within a range

• Use random.choice() to select a random element from a list

• Use random.random() to generate a random float between 0 and 1

• Use random.uniform() to generate a random float within a range
Answered by AI
Add your answer
Q19. What is the difference between array and a list ?
Ans. 
Arrays are fixed in size, while lists can grow or shrink dynamically.
• Arrays are a collection of elements of the same data type, while lists can contain elements of different data types.

• Arrays are accessed using an index, while lists are accessed using an iterator.

• Arrays are faster for accessing elements, while lists are faster for inserting or deleting elements.

• Examples of arrays include int[] and char[], while example...read more
Answered by AI
Add your answer
Q20. How do you run a test suite using robotframework command line ?
Ans. 
To run a test suite using robotframework command line, use the 'robot' command followed by the path to the test suite file.
• Open the command prompt or terminal

• Navigate to the directory containing the test suite file

• Enter the command 'robot' followed by the name of the test suite file

• Add any additional options or arguments as needed

• Press enter to execute the command

• Example: robot my_test_suite.robot

• Example with options: ...read more
Answered by AI
Add your answer
Q21. If some data is not found on the page, do page refresh and how do you validate a data after page refresh in selenium?
Ans. 
To validate data after page refresh in Selenium, we can refresh the page and then use explicit wait to validate the data.
• Refresh the page using driver.navigate().refresh() method

• Use explicit wait to wait for the element to be visible on the page

• Validate the data using getText() or getAttribute() method

• Example: driver.navigate().refresh(); WebDriverWait wait = new WebDriverWait(driver, 10); wait.until(ExpectedConditions...read more
Answered by AI
Add your answer

Q1. What are your roles and responsibilities?
Ans. 
As a Senior Automation Test Engineer, my roles and responsibilities include designing and implementing automated test scripts, identifying and reporting software defects, and collaborating with cross-functional teams to ensure high-quality software delivery.
• Designing and implementing automated test scripts using tools like Selenium, Appium, or JUnit

• Identifying and reporting software defects and working closely with dev...read more
Answered by AI
Add your answer
Q2. What is your current and expected CTC ?
Ans. 
I prefer not to disclose my current CTC. As for my expected CTC, I am looking for a competitive salary based on my experience and skills.
• I am open to negotiation based on the job responsibilities and company's budget

• I have researched the market rates for similar positions and have a realistic expectation

• I am looking for a salary that reflects my experience and skills

• I am also interested in other benefits such as health...read more
Answered by AI
Add your answer
Q3. Are you willing to relocate to Hyderabad ?
Ans. 
Yes, I am willing to relocate to Hyderabad.
• I am open to new opportunities and experiences in different locations.

• I have researched about Hyderabad and I am excited about the city's culture and opportunities.

• I am ready to adapt to a new environment and build a life in Hyderabad.
Answered by AI
Add your answer

String reverse in JS, Framework related question

Q1. Basic java,api,framework,pom level questions
Add your answer