{"id":31831,"date":"2025-04-08T03:13:19","date_gmt":"2025-04-07T21:43:19","guid":{"rendered":"https:\/\/vajiramandravi.com\/current-affairs\/?p=31831"},"modified":"2025-04-16T15:10:01","modified_gmt":"2025-04-16T09:40:01","slug":"captcha","status":"publish","type":"post","link":"https:\/\/vajiramandravi.com\/current-affairs\/captcha\/","title":{"rendered":"CAPTCHA"},"content":{"rendered":"<h2>CAPTCHA Latest News<\/h2>\n<p>CAPTCHA is a crucial security tool to verify human users and protect websites from bots, but faces challenges.<\/p>\n<h2>About CAPTCHA<\/h2>\n<ul>\n<li>CAPTCHA stands for the<strong> Completely Automated Public Turing test to tell Computers and Humans Apart.\u00a0<\/strong><\/li>\n<li>The term <strong>\u201cTuring test<\/strong>\u201d is central to CAPTCHAs.\u00a0\n<ul>\n<li>A <strong>Turing test evaluates a computer\u2019s capacity to simulate human behavior.\u00a0<\/strong><\/li>\n<li>In 1950, Alan Turing, an early pioneer of computing and artificial intelligence (AI), created the Turing test.\u00a0<\/li>\n<li>A computer program \u201cpasses\u201d the Turing test if its actions throughout the test cannot be distinguished from that of a person, i.e., if it behaves as a human would.\u00a0<\/li>\n<li>A <strong>Turing test<\/strong> is not based on answering questions correctly; rather, it is <strong>concerned with how \u201chuman\u201d the responses seem<\/strong>, irrespective of whether they are accurate.<\/li>\n<\/ul>\n<\/li>\n<li><strong>CAPTCHAs are tools <\/strong>you can use to <strong>differentiate between real users and automated users, <\/strong>such as bots.\u00a0<\/li>\n<li>CAPTCHAs <strong>provide challenges that are difficult for computers t<\/strong>o perform but relatively<strong> easy for humans.\u00a0<\/strong><\/li>\n<li>For example, a CAPTCHA <strong>may ask the user to enter the characters displayed<\/strong> in a blurred image or identify all of the images in a grid that contain a traffic light.\u00a0<\/li>\n<li>Some newer CAPTCHAs ask the user to click in a box stating that they are not a robot and<strong> use various metrics <\/strong>to differentiate between human and automated visitors.<\/li>\n<li>CAPTCHAs are used by any website that wishes <strong>to restrict usage by bots.<\/strong><\/li>\n<\/ul>\n<h2>CAPTCHA FAQs<\/h2>\n<p><strong>Q1<\/strong>. What does CAPTCHA stand for?<\/p>\n<p><strong>Ans<\/strong>. Completely Automated Public Turing test to tell Computers and Humans Apart<\/p>\n<p><strong>Q2<\/strong>. What is the main purpose of CAPTCHA?<\/p>\n<p><strong>Ans<\/strong>. To distinguish humans from automated bots<\/p>\n<p><strong>Q3<\/strong>. CAPTCHAs are based on which fundamental computer science concept?<\/p>\n<p><strong>Ans<\/strong>. Turing test<\/p>\n<p><strong>Source<\/strong>: <a href=\"https:\/\/www.thehindu.com\/sci-tech\/technology\/captcha-a-digital-border-between-humans-and-bots\/article69420004.ece\" target=\"_blank\" rel=\"nofollow noopener\">TH<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>CAPTCHA stands for Completely Automated Public Turing test to tell Computers and Humans Apart, used to prevent bots and ensure user authenticity online.<\/p>\n","protected":false},"author":5,"featured_media":31832,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-31831","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-upsc-prelims-current-affairs","8":"no-featured-image-padding"},"acf":[],"_links":{"self":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/31831","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/comments?post=31831"}],"version-history":[{"count":0,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/31831\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media\/31832"}],"wp:attachment":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media?parent=31831"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/categories?post=31831"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/tags?post=31831"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}