Which function returns the rightmost n characters of a string?

Which function returns the rightmost n characters of a string?

• A. Left
• B. Right
• C. Mid
• D. Substring

Answer: (B)

The concept tested is selecting a portion of a string from the end. The Right function directly returns the last n characters of a string when you provide the string and the number n. For example, Right('database', 4) yields 'base', which shows how this function targets the ending segment. Left would give the starting characters (like 'data' for the same example), and Mid (or Substring) is more general: Mid requires a start position and a length, so pulling from the end isn’t direct—you’d need to know the string length and compute where to start. Substring is the generic form that can extract any portion, but to get the rightmost part you’d again have to calculate the starting index, adding extra steps. So the function that returns the rightmost n characters in one go is Right.

The concept tested is selecting a portion of a string from the end. The Right function directly returns the last n characters of a string when you provide the string and the number n. For example, Right('database', 4) yields 'base', which shows how this function targets the ending segment.

Left would give the starting characters (like 'data' for the same example), and Mid (or Substring) is more general: Mid requires a start position and a length, so pulling from the end isn’t direct—you’d need to know the string length and compute where to start. Substring is the generic form that can extract any portion, but to get the rightmost part you’d again have to calculate the starting index, adding extra steps.

So the function that returns the rightmost n characters in one go is Right.