{"id":681,"date":"2021-01-17T05:37:50","date_gmt":"2021-01-16T18:04:13","guid":{"rendered":"https:\/\/exampracticetests.com\/ISC\/SSCP\/systems-security-certified-practitioner-sscp-question0673\/"},"modified":"2021-01-17T05:44:32","modified_gmt":"2021-01-17T05:44:32","slug":"systems-security-certified-practitioner-sscp-question0673","status":"publish","type":"post","link":"https:\/\/exampracticetests.com\/ISC\/SSCP\/systems-security-certified-practitioner-sscp-question0673\/","title":{"rendered":"Systems Security Certified Practitioner &#8211; SSCP &#8211; Question0673"},"content":{"rendered":"<div class=\"question\">How many bits is the effective length of the key of the Data Encryption Standard algorithm? <br \/><strong><br \/>A.<\/strong> 168<br \/><strong>B.<\/strong> 128<br \/><strong>C.<\/strong> 56<br \/><strong>D.<\/strong> 64<\/div>\n<p><\/p>\n<style> .hidden-div{ display:none } <\/style>\n<p>\t\t\t\t\t\t\t<button onclick=\"getElementById('hidden-div').style.display = 'block'\"> Show Answer <\/button> <button onclick=\"getElementById('hidden-div').style.display = 'none'\">Hide Answer<\/button><\/p>\n<div class=\"hidden-div\" id=\"hidden-div\"><span style=\"\"><\/p>\n<div class=\"answer\">Correct Answer: <strong>C<\/strong><\/div>\n<p><strong>Explanation:<\/strong> <\/p>\n<div class=\"explanation\">\nThe correct answer is &#8220;56&#8221;. This is actually a bit of a trick question, since the actual key length is 64 bits. However, every eighth bit is ignored because it is used for parity. This makes the &#8220;effective length of the key&#8221; that the question actually asks for 56 bits.<br \/>\nThe other answers are not correct because:<br \/>\n168 -This is the number of effective bits in Triple DES (56 times 3). 128 -Many encryption algorithms use 128 bit key, but not DES. Note that you may see 128 bit encryption referred to as &#8220;military strength encryption&#8221; because many military systems use key of this length. 64 -This is the actual length of a DES encryption key, but not the &#8220;effective length&#8221; of the DES key.<br \/>\nReference: Official ISC2 Guide page: 238 All in One Third Edition page: 622<\/div>\n<p><\/strong><\/span> <\/div>\n","protected":false},"excerpt":{"rendered":"<p>How many bits is the effective length of the key of the Data Encryption Standard algorithm? A. 168B. 128C. 56D. 64 Show Answer Hide Answer Correct Answer: C Explanation: The correct answer is &#8220;56&#8221;. This is actually a bit of a trick question, since the actual key length is 64 bits. However, every eighth bit [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[1078,676,3],"class_list":["post-681","post","type-post","status-publish","format-standard","hentry","category-systems-security-certified-practitioner-sscp","tag-choices","tag-question-0673","tag-systems-security-certified-practitioner-sscp"],"_links":{"self":[{"href":"https:\/\/exampracticetests.com\/ISC\/SSCP\/wp-json\/wp\/v2\/posts\/681","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/exampracticetests.com\/ISC\/SSCP\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/exampracticetests.com\/ISC\/SSCP\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/exampracticetests.com\/ISC\/SSCP\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/exampracticetests.com\/ISC\/SSCP\/wp-json\/wp\/v2\/comments?post=681"}],"version-history":[{"count":1,"href":"https:\/\/exampracticetests.com\/ISC\/SSCP\/wp-json\/wp\/v2\/posts\/681\/revisions"}],"predecessor-version":[{"id":1757,"href":"https:\/\/exampracticetests.com\/ISC\/SSCP\/wp-json\/wp\/v2\/posts\/681\/revisions\/1757"}],"wp:attachment":[{"href":"https:\/\/exampracticetests.com\/ISC\/SSCP\/wp-json\/wp\/v2\/media?parent=681"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/exampracticetests.com\/ISC\/SSCP\/wp-json\/wp\/v2\/categories?post=681"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/exampracticetests.com\/ISC\/SSCP\/wp-json\/wp\/v2\/tags?post=681"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}