Convergent Science Interview Questions and Answers

Selenium is a tool used for automating web browsers. Framework can be fixed by identifying and resolving issues. Navigation tools can be written using Selenium commands.

• Selenium is a popular open-source tool for automating web browsers

• To fix a framework, identify and resolve issues with the code

• Navigation tools can be written using Selenium commands like 'get', 'click', 'sendKeys', etc.

driver.close() closes the current window while driver.quit() closes all windows and ends the session.

• driver.close() only closes the current window while driver.quit() closes all windows and ends the session

• driver.close() can be used when multiple windows are open and you want to close only one of them

• driver.quit() should be used at the end of the script to ensure all windows are closed and the session is ended

Web locators include ID, name, class name, tag name, link text, and partial link text. Web driver supports implicit, explicit, and fluent waits.

• Web locators are used to identify elements on a web page

• ID and name locators are unique to an element

• Class name and tag name locators can identify multiple elements

• Link text and partial link text locators are used for links

• Implicit waits wait for a certain amount of time before throwing an exception

• Explicit waits wait for a certain co...read more

Selenium suite components include Selenium IDE, Selenium WebDriver, and Selenium Grid. Limitations include browser compatibility issues and difficulty in testing non-web applications.

• Selenium IDE for record and playback

• Selenium WebDriver for programmatic interaction

• Selenium Grid for distributed testing

• Browser compatibility issues

• Difficulty in testing non-web applications

To type text in an input box using Selenium, use the sendKeys() method.

• Locate the input box using a locator strategy

• Use the sendKeys() method to enter text into the input box

• Example: driver.findElement(By.id("inputBoxId")).sendKeys("Text to be entered")

Truncate is a DDL command that removes all records from a table, while delete is a DML command that removes specific records.

• Truncate is faster than delete as it does not log individual row deletions.

• Truncate resets the identity seed of the table, while delete does not.

• Truncate cannot be rolled back, while delete can be rolled back using a transaction.

• Truncate does not fire triggers, while delete does.

Indexing is a technique used to optimize the performance of databases by creating a data structure that allows for quick retrieval of data.

• Indexing involves creating a data structure that maps the values of specific columns in a database table to their physical location on disk.

• It helps in speeding up data retrieval operations by allowing the database to quickly locate the rows that match a certain condition.

• Examples of indexing include creating indexes on primary keys, forei...read more

Find starting and ending indices of repetitive character in a string.

• Iterate through the string and keep track of the current character and its count.

• When a different character is encountered, check if the count is greater than 1 and store the indices.

• Repeat the process until the end of the string is reached.