{"version":"1.0","provider_name":"OnlineExamMaker Blog","provider_url":"https:\/\/onlineexammaker.com\/kb","author_name":"Melina Yu","author_url":"https:\/\/onlineexammaker.com\/kb\/author\/zgx\/","title":"Introduction to screen lockdown for online exam - OnlineExamMaker Blog","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"Z1IRKFTnT6\"><a href=\"https:\/\/onlineexammaker.com\/kb\/screen-lockdown\/\">Introduction to screen lockdown for online exam<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/onlineexammaker.com\/kb\/screen-lockdown\/embed\/#?secret=Z1IRKFTnT6\" width=\"600\" height=\"338\" title=\"&#8220;Introduction to screen lockdown for online exam&#8221; &#8212; OnlineExamMaker Blog\" data-secret=\"Z1IRKFTnT6\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script type=\"text\/javascript\">\n\/* <![CDATA[ *\/\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/* ]]> *\/\n<\/script>\n","description":"During the COVID-19, online exam has been a new trend. Online Exam System\u00a0helps many schools and enterprises solve the problem of examination. But with the advent of the online exam, many problems has been exposed, especially cheating. To overcome this problem, Online Exam System develops a powerful feature for fair exams. Screen lockdown, an anti-cheating [&hellip;]","thumbnail_url":"https:\/\/onlineexammaker.com\/kb\/wp-content\/uploads\/2021\/02\/screen-lockdown-OEM.png"}