Selenium Web Element Locators & Selectors

Question 1

Which Selenium locator strategy is generally fastest and most reliable when an element has a unique ID attribute?

Accepted Answer

By.id()

Answer

By.id() directly maps to the HTML 'id' attribute and is the most performant locator when IDs are unique and stable.

Question 2

What does driver.findElements() return when no elements match the given locator?

Accepted Answer

An empty List<WebElement>

Answer

findElements() always returns a List<WebElement> — an empty list when nothing matches, never null or an exception.

Question 3

Which Selenium locator strategy finds an anchor element by its complete visible text?

Accepted Answer

By.linkText()

Answer

By.linkText() matches the full visible text of an anchor (<a>) element exactly.

Question 4

What is the correct Selenium syntax to locate an element by its CSS class name?

Accepted Answer

driver.findElement(By.className("myClass"))

Answer

By.className() is the Selenium locator strategy designed specifically to find elements by their CSS class attribute.

Question 5

Which Selenium method throws a NoSuchElementException when the target element is not present in the DOM?

Accepted Answer

driver.findElement()

Answer

driver.findElement() throws NoSuchElementException immediately if no matching element is found, unlike findElements() which returns an empty list.

(Selenium) Selenium Testing Certification Practice Test