MCQs on Parameterization and Data-Driven Testing | Selenium

200+ Free Selenium MCQ Quizs |Intermediate| MCQs on Selenium MCQs on Parameterization and Data-Driven Testing | Selenium

Master Parameterization and Data-Driven Testing in Selenium with these 30 MCQs. Learn to read data from Excel/CSV, use Data Providers in TestNG, and efficiently parameterize tests for dynamic execution.

1. Reading Data from Excel/CSV

Which library is commonly used to read data from Excel in Selenium?
- a) Apache POI
- b) JUnit
- c) TestNG
- d) WebDriverManager
What is the primary purpose of data-driven testing in Selenium?
- a) To simplify test case writing
- b) To execute tests with multiple data sets
- c) To reduce manual testing
- d) To automate UI elements
In Apache POI, which class is used to open an Excel workbook?
- a) WorkbookFactory
- b) FileReader
- c) WorkbookLoader
- d) ExcelParser
How do you retrieve the value of a specific cell in an Excel sheet using Apache POI?
- a) row.getCell(index).getValue()
- b) sheet.getCellValue(row, column)
- c) row.getCell(index).toString()
- d) row.get(index).getData()
Which method is used to close the workbook in Apache POI?
- a) workbook.close()
- b) workbook.finish()
- c) workbook.end()
- d) workbook.terminate()
What is the default delimiter for a CSV file?
- a) Semicolon (;)
- b) Comma (,)
- c) Tab (\t)
- d) Pipe (|)
Which Java library is commonly used to read and write CSV files?
- a) OpenCSV
- b) JExcelAPI
- c) Apache Commons IO
- d) Selenium WebDriver
What is a common way to load CSV data into a Selenium test?
- a) Using BufferedReader to read the file line by line
- b) Using FileInputStream to load the entire file
- c) Using HashMap to store data
- d) Using ExcelDataProvider
In OpenCSV, which class is used to parse CSV files?
- a) CSVParser
- b) CSVReader
- c) FileReader
- d) CSVDataLoader
Which of the following can cause errors when reading a CSV file?
- a) Missing headers
- b) Malformed rows
- c) Incorrect delimiters
- d) All of the above

2. Data Providers in TestNG

What is the purpose of the @DataProvider annotation in TestNG?
- a) To manage test configurations
- b) To supply data to test methods
- c) To validate test results
- d) To handle exceptions
What is the return type of a @DataProvider method?
- a) List<Object[]>
- b) Object[][]
- c) Map<Object, Object>
- d) Set<Object[]>
How do you associate a test method with a @DataProvider in TestNG?
- a) Use the dataProvider attribute in the @Test annotation
- b) Use the @DataSource annotation
- c) Call the @DataProvider method directly
- d) Pass it as a parameter to the test class
How can you provide a name for a @DataProvider in TestNG?
- a) Using the name attribute in the @DataProvider annotation
- b) Using the @DataSource annotation
- c) Using the value attribute in the test method
- d) Using the testName attribute
Can you use multiple @DataProvider methods in a single TestNG class?
- a) Yes
- b) No
- c) Only if they have different names
- d) Only with XML configuration
What happens if a test method has no associated data from the @DataProvider?
- a) It will skip execution
- b) It will run with default values
- c) It will throw an error
- d) It will pass automatically
Which of the following is a valid @DataProvider example?
- a)javaCopy code@DataProvider public Object[][] getData() { return new Object[][] { {"data1"}, {"data2"} }; }
- b)javaCopy code@DataProvider public String[] getData() { return {"data1", "data2"}; }
- c)javaCopy code@DataProvider public int[][] getData() { return {{1, 2}, {3, 4}}; }
- d)javaCopy code@DataProvider public List<Object[]> getData() { return Arrays.asList({"data1"}, {"data2"}); }
How do you handle large data sets in a @DataProvider?
- a) Use Excel or CSV files and load the data dynamically
- b) Hardcode all data into the @DataProvider
- c) Use multiple @DataProvider methods
- d) Split the test into smaller methods
Can a @DataProvider method be defined in a different class?
- a) Yes, using the dataProviderClass attribute in the @Test annotation
- b) No, it must be in the same class
- c) Only if the method is static
- d) Only with TestNG XML
Which keyword is used to skip specific rows in a @DataProvider?
- a) SkipRow
- b) ConditionalExecution
- c) ConditionalSkip
- d) No direct keyword exists

3. Parameterizing Tests

How do you pass parameters to a TestNG test method?
- a) Using the @Parameters annotation
- b) Using the @Inject annotation
- c) Using the @DataProvider annotation
- d) By modifying the test class constructor
How are parameters specified in TestNG XML?
- a) Inside the <parameter> tag under a <test> tag
- b) Using a <param> attribute in the <suite> tag
- c) Inside the <parameters> tag under the <method> tag
- d) Using the <data> tag under the <class> tag
How can you access XML parameters in a test method?
- a) By passing them as arguments to the method
- b) Using the @Parameters annotation with the parameter name
- c) Using the ParameterContext object
- d) By declaring them as instance variables
Can you use both @Parameters and @DataProvider in the same test method?
- a) Yes, but parameters must be used first
- b) No, they are mutually exclusive
- c) Yes, but only in separate test runs
- d) Yes, they can be used together
What happens if a parameter in TestNG XML is not provided?
- a) The test is skipped
- b) TestNG throws an error
- c) The parameter value is null
- d) The test runs with a default value
Can you override TestNG XML parameters programmatically?
- a) Yes, using ITestContext
- b) No, XML parameters cannot be overridden
- c) Only with Maven
- d) Only with a custom listener
What is the difference between @Parameters and @DataProvider?
- a) @Parameters fetches data from XML, @DataProvider provides data directly from code
- b) @Parameters is used for single data values, @DataProvider for multiple sets
- c) Both are identical in functionality
- d) Both fetch data from external sources
How can you pass multiple parameters to a test method?
- a) Using @Parameters with a comma-separated list
- b) Using an array in @Parameters
- c) By defining multiple <parameter> tags in TestNG XML
- d) All of the above
Can parameters in TestNG XML be optional?
- a) No, all parameters must be defined
- b) Yes, using default values in the test method
- c) Yes, using the <optional> attribute in XML
- d) Only for @DataProvider parameters
What is the default value of a missing XML parameter in TestNG?
- a) null
- b) "" (empty string)
- c) 0
- d) It throws

Parameterization and Data-Driven Testing in Selenium:

Qno	Answer (Option with the text)
1	a) Apache POI
2	b) To execute tests with multiple data sets
3	a) WorkbookFactory
4	c) `row.getCell(index).toString()`
5	a) `workbook.close()`
6	b) Comma (,)
7	a) OpenCSV
8	a) Using `BufferedReader` to read the file line by line
9	b) CSVReader
10	d) All of the above
11	b) To supply data to test methods
12	b) `Object[][]`
13	a) Use the `dataProvider` attribute in the `@Test` annotation
14	a) Using the `name` attribute in the `@DataProvider` annotation
15	a) Yes
16	b) It will run with default values
17	a) (Correct code example)
18	a) Use Excel or CSV files and load the data dynamically
19	a) Yes, using the `dataProviderClass` attribute in the `@Test` annotation
20	d) No direct keyword exists
21	a) Using the `@Parameters` annotation
22	a) Inside the `<parameter>` tag under a `<test>` tag
23	b) Using the `@Parameters` annotation with the parameter name
24	b) No, they are mutually exclusive
25	c) The parameter value is null
26	a) Yes, using `ITestContext`
27	a) `@Parameters` fetches data from XML, `@DataProvider` provides data directly from code
28	d) All of the above
29	b) Yes, using default values in the test method
30	a) `null`

Post Views: 45

Previous Lesson

Back to Course