📄 m22 - understanding data step processing - 46 of 47.mht
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Date: Thu, 4 Mar 2004 16:34:53 +0800
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<P><EM>Select the best answer for each question and click Score My =
Quiz.</EM>=20
<OL>
<LI><!-- InstanceBeginEditable name=3D"q1text" -->Which of the =
following=20
is <STRONG>not</STRONG> created during the compilation =
phase?<!-- InstanceEndEditable -->=20
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<TD> <EM>a.</EM> </TD>
<TD><!-- InstanceBeginEditable name=3D"q1a" -->the data set=20
descriptor<!-- InstanceEndEditable --></TD></TR>
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<TD><INPUT type=3Dradio value=3Db name=3Dques1> </TD>
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observation<!-- InstanceEndEditable --></TD></TR>
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<TD> <EM>c.</EM> </TD>
<TD><!-- InstanceBeginEditable name=3D"q1c" -->the program =
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vector<!-- InstanceEndEditable --></TD></TR>
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<TD> <EM>d.</EM> </TD>
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<CODE>_N_</CODE>=20
and <CODE>_ERROR_</CODE> automatic variables<!-- =
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<P></P>
<LI><!-- InstanceBeginEditable name=3D"q2text" -->During the =
compilation=20
phase, SAS scans each statement in the DATA step, looking for =
syntax=20
errors. Which of the following is <STRONG>not</STRONG> =
considered a=20
syntax error?<!-- InstanceEndEditable -->=20
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<TD><!-- InstanceBeginEditable name=3D"q2a" -->incorrect =
values and=20
formats<!-- InstanceEndEditable --></TD></TR>
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<TD> <EM>b.</EM> </TD>
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variable names<!-- InstanceEndEditable --></TD></TR>
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<TD> <EM>c.</EM> </TD>
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punctuation<!-- InstanceEndEditable --></TD></TR>
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<TD> <EM>d.</EM> </TD>
<TD><!-- InstanceBeginEditable name=3D"q2d" -->missing or =
misspelled=20
keywords<!-- InstanceEndEditable =
--></TD></TR></TBODY></TABLE>
<P></P>
<LI><!-- InstanceBeginEditable name=3D"q3text" -->Unless =
otherwise=20
directed, the DATA step executes...<!-- InstanceEndEditable -->=20
<P>
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<TD><INPUT type=3Dradio value=3Da name=3Dques3> </TD>
<TD> <EM>a.</EM> </TD>
<TD><!-- InstanceBeginEditable name=3D"q3a" -->once for each =
compilation phase.<!-- InstanceEndEditable --></TD></TR>
<TR vAlign=3Dtop>
<TD><INPUT type=3Dradio value=3Db name=3Dques3> </TD>
<TD> <EM>b.</EM> </TD>
<TD><!-- InstanceBeginEditable name=3D"q3b" -->once for each =
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