使用 Latex - documentclass{exam} 时，如何在问题编号前加上单词？（我希望问题这个词出现在那里）

Question

\documentclass{exam} 

\begin{document} 
\bf {This is easy enough}
\begin{questions}
\question What is the sum of 1 and 1
\end{questions}
\vspace{2cm}
But what I really want is :\\\\
Question 1. What is the sum of 1 and 1

\end{document}

Answer 1

\documentclass{exam} 

\renewcommand\questionlabel{Question \thequestion.}

\begin{document} 
\textbf{This is easy enough}
\begin{questions}
\question What is the sum of 1 and 1
\end{questions}

\end{document}