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\documentclass{article}
\usepackage[designv]{web} %,forcolorpaper
\usepackage{exerquiz}[2021/02/17]
\usepackage[!showscore]{eq-pin2corr}
%\previewOn\pmpvOn
\useBeginQuizButton[\CA{Begin}]
\useEndQuizButton[\CA{End}]
\showCreditMarkup % optional
\let\uif\textsf
\useMCCircles % optional
%
% When building your own quiz document, decide on a PIN number
% then use the utility document get-hash-string.pdf to acquire
% the corresponding hash string. Place your own PIN and hash string
% in the two arguments of \declPINId.
\declPINId{5243}{02JRVZdRgYgCA-Rtje8VkD} % PIN number, hash string
% So instructor can bypass entering the PIN.
\classPINVar{_PinCode1}
\parindent0pt
\parskip6pt
\begin{document}
\section*{PIN Security for Quizzes}
This demo file implements a feature that prevents students from
correcting their own quiz. The \uif{Correct} button appears at the end of
the quiz, but a PIN number is needed for it to execute. For the purpose of
this demo files, the PIN number is given to the right of the \uif{Correct}
button; of course, the PIN is not given to the student. \verb~:-{)~ Test it
out: (1) take the test; (2) press the \uif{End} button; (3) save and close
the document; (4) open the document and press the \uif{Correct} button, the
graded quiz should be reported. \textsf{Adobe Reader DC} (or \textsf{Adobe
Acrobat}) is required for the document to function as designed.
\usePINCorrBtn
\begin{quiz*}{qz1}
Solve each, passing is 100\%.
\begin{questions}
\item The sum of 1 and 1 is \dots
\begin{answers}{8}
\bChoices
\Ans0 0\eAns
\Ans0 1\eAns
\Ans1 2\eAns
\Ans0 3\eAns
\Ans0 4\eAns
\eChoices
\end{answers}
\item $ \cos(\pi) = \RespBoxMath{-1}{1}{.0001}{[0,1]}\cgBdry\kern1bp
\CorrAnsButton{-1} $
\item $\displaystyle\frac{d}{dx}{\sin(x)}=\RespBoxMath{cos(x)}{4}{.0001}{[0,1]}\cgBdry\kern1bp
\CorrAnsButton{cos(x)} $
\end{questions}
\end{quiz*}\quad\ScoreField[\rectW{2.25in}]\currQuiz\olBdry\CorrButton{\currQuiz} (PIN: \numPINId)
\noindent
Answers: \AnswerField\currQuiz
% remove this \end{document} and recompile. This next quiz has no PIN security.
\end{document}
\section*{No PIN security}
To restore the default definition of the \verb|\CorrButton| action, expand
the freshly defined macro \verb|\restoreCorrBtnJS|.
% restore the Correct button to its normal/default behavior: the student
% can get his/her score and the quiz is marked up.
\restoreCorrBtn
\begin{quiz*}{qz2}
Solve each, passing is 100\%.
\begin{questions}
\item The sum of 1 and 1 is \dots
\begin{answers}{8}
\bChoices
\Ans0 0\eAns
\Ans0 1\eAns
\Ans1 2\eAns
\Ans0 3\eAns
\Ans0 4\eAns
\eChoices
\end{answers}
\item $ \cos(\pi) = \RespBoxMath{-1}{1}{.0001}{[0,1]}\cgBdry\kern1bp
\CorrAnsButton{-1} $
\item $\displaystyle\frac{d}{dx}{\sin(x)}=\RespBoxMath{cos(x)}{4}{.0001}{[0,1]}\cgBdry\kern1bp
\CorrAnsButton{cos(x)} $
\end{questions}
\end{quiz*}\quad\PointsField{\currQuiz}\olBdry\CorrButton{\currQuiz}
\end{document}
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