{"version":"1.0","provider_name":"OnlineExamMaker Blog","provider_url":"https:\/\/onlineexammaker.com\/kb","author_name":"Rebecca","author_url":"https:\/\/onlineexammaker.com\/kb\/author\/rebeccaoem\/","title":"20 Ethereum Quiz Questions and Answers - OnlineExamMaker Blog","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"hCjzs1UJzi\"><a href=\"https:\/\/onlineexammaker.com\/kb\/20-ethereum-quiz-questions-and-answers\/\">20 Ethereum Quiz Questions and Answers<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/onlineexammaker.com\/kb\/20-ethereum-quiz-questions-and-answers\/embed\/#?secret=hCjzs1UJzi\" width=\"600\" height=\"338\" title=\"&#8220;20 Ethereum Quiz Questions and Answers&#8221; &#8212; OnlineExamMaker Blog\" data-secret=\"hCjzs1UJzi\" 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","thumbnail_url":"https:\/\/onlineexammaker.com\/kb\/wp-content\/uploads\/2025\/08\/1325-ethereum.webp","thumbnail_width":600,"thumbnail_height":353,"description":"Ethereum is a decentralized, open-source blockchain platform that serves as the foundation for a vast ecosystem of decentralized applications (dApps) and smart contracts. Launched in 2015 by Vitalik Buterin, it goes beyond simple cryptocurrency transactions by enabling programmable transactions through its native token, Ether (ETH). At its core, Ethereum allows developers to create self-executing contracts\u2014known [&hellip;]"}