<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:arial, helvetica, sans-serif;font-size:10pt"><div>Hi, </div><div><br></div><div>I guess practice test forgot to consider "NOT" in the question. </div><div><br></div><div>Its a wakeup call for all CISSP aspirants to watch out for these "negatives". If experts (!) developing these practice tests can go wrong, after whole lot of QA I would suppose, there is a good chance we may miss this while taking exam as well. (to be honest, I went for B in the first instance as I forgot to notice NOT, doh!)</div><div><br></div><div>cheers, SB</div><div><br></div><div style="font-family:arial, helvetica, sans-serif;font-size:10pt"><div style="font-family:times new roman, new york, times, serif;font-size:12pt"><font size="2" face="Tahoma"><hr size="1"><b><span style="font-weight: bold;">From:</span></b> amar singh
<amar_ncet@yahoo.co.in><br><b><span style="font-weight: bold;">To:</span></b> The CISSP Study Mailing list <cisspstudy@cccure.org><br><b><span style="font-weight: bold;">Sent:</span></b> Sun, 13 December, 2009 11:25:21 AM<br><b><span style="font-weight: bold;">Subject:</span></b> Re: [Cisspstudy] Help<br></font><br><div style="font-family:'times new roman', 'new york', times, serif;font-size:12pt;"><div>certainly A</div><div style="font-family:times new roman, new york, times, serif;font-size:12pt;"><br><div style="font-family:times new roman, new york, times, serif;font-size:12pt;"><font size="2" face="Tahoma"><hr size="1"><b><span style="font-weight:bold;">From:</span></b> yogeshwaran <yogeshm23@yahoo.com><br><b><span style="font-weight:bold;">To:</span></b> cisspstudy@cccure.org; cisspstudy-request@cccure.org<br><b><span style="font-weight:bold;">Sent:</span></b> Sun, 13 December, 2009 4:14:10 PM<br><b><span
style="font-weight:bold;">Subject:</span></b> [Cisspstudy] Help<br></font><br><table cellspacing="0" cellpadding="0" border="0"><tbody><tr><td valign="top" style="font:inherit;"><div>Hi,</div>
<div> </div>
<div>Kindly clarify my doubt in Cryptography - practise test</div>
<div> </div>
<div>A symmetric algorithm must have certain characteristics to be considered strong.<br>which of the followin is<font style="BACKGROUND-COLOR:#ffff00;"> not</font> correct pertaining to these types of characeteristics?</div>
<div><br>A. Confusion is carried out thru' transposition and diffusion is carried out thru diffusion.</div>
<div>B. Confusion is carried out thru substituition and diffusion is carried out thru transposition.</div>
<div>C. Confusion and diffusion are both used to increase the workfactor</div>
<div>D. The randomness of the key and functions in the algorithm correlate with the level of confusion and diffusion that is provided.</div>
<div><br>I think the answer is A, but the practise exam says it is B</div>
<div> </div>
<div>Thanks & Regards,</div>
<div>Yogesh.M</div></td></tr></tbody></table><br>
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