{"version":"1.0","provider_name":"A Level Computer Science","provider_url":"https:\/\/learnlearn.uk\/alevelcs","author_name":"learnlearnadmin","author_url":"https:\/\/learnlearn.uk\/alevelcs\/author\/learnlearnadmin\/","title":"Subnetworks & Subnet Masks - A Level Computer Science","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"1ig2p7NESU\"><a href=\"https:\/\/learnlearn.uk\/alevelcs\/subnet-masks\/\">Subnetworks &#038; Subnet Masks<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/learnlearn.uk\/alevelcs\/subnet-masks\/embed\/#?secret=1ig2p7NESU\" width=\"600\" height=\"338\" title=\"&#8220;Subnetworks &#038; Subnet Masks&#8221; &#8212; A Level Computer Science\" data-secret=\"1ig2p7NESU\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script>\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\/\/# sourceURL=https:\/\/learnlearn.uk\/alevelcs\/wp-includes\/js\/wp-embed.min.js\n<\/script>\n","description":"Subnet Masks A subnet mask is a way of splitting a network up into smaller mini networks without wasting IP addresses. In a standard home\/small office network your router can normally support up to 250 devices and you can use subnetting to separate parts of the network from each other, whilst still allowing all devices&hellip;&nbsp;Read More &raquo;","thumbnail_url":"https:\/\/learnlearn.uk\/alevelcs\/wp-content\/uploads\/sites\/20\/2021\/02\/subnet-mask-diagram-cie-alevel-9618.png"}