{"id":946,"date":"2021-01-17T05:42:35","date_gmt":"2021-01-16T18:09:03","guid":{"rendered":"https:\/\/exampracticetests.com\/ISC\/SSCP\/systems-security-certified-practitioner-sscp-question0938\/"},"modified":"2021-01-17T05:44:52","modified_gmt":"2021-01-17T05:44:52","slug":"systems-security-certified-practitioner-sscp-question0938","status":"publish","type":"post","link":"https:\/\/exampracticetests.com\/ISC\/SSCP\/systems-security-certified-practitioner-sscp-question0938\/","title":{"rendered":"Systems Security Certified Practitioner &#8211; SSCP &#8211; Question0938"},"content":{"rendered":"<div class=\"question\">Which OSI\/ISO layer does a SOCKS server operate at? <br \/><strong><br \/>A.<\/strong> Session layer <br \/><strong>B.<\/strong> Transport layer <br \/><strong>C.<\/strong> Network layer <br \/><strong>D.<\/strong> Data link layer<\/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>A<\/strong><\/div>\n<p><strong>Explanation:<\/strong> <\/p>\n<div class=\"explanation\">\nA SOCKS based server operates at the Session layer of the OSI model.<br \/>\nSOCKS is an Internet protocol that allows client-server applications to transparently use the services of a network firewall. SOCKS is an abbreviation for &#8220;SOCKetS&#8221;. As of Version 5 of SOCK, both UDP and TCP is supported.<br \/>\nOne of the best known circuit-level proxies is SOCKS proxy server. The basic purpose of the protocol is to enable hosts on one side of a SOCKS server to gain access to hosts on the other side of a SOCKS Server, without requiring direct \u201cIP-reachability\u201d<br \/>\nThe protocol was originally developed by David Koblas, a system administrator of MIPS Computer Systems. After MIPS was taken over by Silicon Graphics in 1992, Koblas presented a paper on SOCKS at that year&#8217;s Usenix Security Symposium and SOCKS became publicly available. The protocol was extended to version 4 by Ying-Da Lee of NEC.<br \/>\nSOCKS includes two components, the SOCKS server and the SOCKS client.<br \/>\nThe SOCKS protocol performs four functions:<br \/>\nMaking connection requests Setting up proxy circuits Relaying application data Performing user authentication (optional)<br \/>\nSource: KRUTZ, Ronald L. &#038; VINES, Russel D., The CISSP Prep Guide: Mastering the Ten Domains of Computer Security, John Wiley &#038; Sons, 2001, Chapter 3: Telecommunications and Network Security (page 96). and <a href=\"http:\/\/en.wikipedia.org\/wiki\/SOCKS\" title=\"External link\" rel=\"nofollow noopener\" target=\"_blank\">http:\/\/en.wikipedia.org\/wiki\/SOCKS<\/a> and <a href=\"http:\/\/www.faqs.org\/rfcs\/rfc1928.html\" title=\"External link\" rel=\"nofollow noopener\" target=\"_blank\">http:\/\/www.faqs.org\/rfcs\/rfc1928.html<\/a> and The ISC2 OIG on page 619<\/div>\n<p><\/strong><\/span> <\/div>\n","protected":false},"excerpt":{"rendered":"<p>Which OSI\/ISO layer does a SOCKS server operate at? A. Session layer B. Transport layer C. Network layer D. Data link layer Show Answer Hide Answer Correct Answer: A Explanation: A SOCKS based server operates at the Session layer of the OSI model. SOCKS is an Internet protocol that allows client-server applications to transparently use [&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":[1078,941,3],"class_list":["post-946","post","type-post","status-publish","format-standard","hentry","category-systems-security-certified-practitioner-sscp","tag-choices","tag-question-0938","tag-systems-security-certified-practitioner-sscp"],"_links":{"self":[{"href":"https:\/\/exampracticetests.com\/ISC\/SSCP\/wp-json\/wp\/v2\/posts\/946","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=946"}],"version-history":[{"count":1,"href":"https:\/\/exampracticetests.com\/ISC\/SSCP\/wp-json\/wp\/v2\/posts\/946\/revisions"}],"predecessor-version":[{"id":2022,"href":"https:\/\/exampracticetests.com\/ISC\/SSCP\/wp-json\/wp\/v2\/posts\/946\/revisions\/2022"}],"wp:attachment":[{"href":"https:\/\/exampracticetests.com\/ISC\/SSCP\/wp-json\/wp\/v2\/media?parent=946"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/exampracticetests.com\/ISC\/SSCP\/wp-json\/wp\/v2\/categories?post=946"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/exampracticetests.com\/ISC\/SSCP\/wp-json\/wp\/v2\/tags?post=946"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}