{"id":57756,"date":"2024-04-16T01:07:31","date_gmt":"2024-04-16T01:07:31","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=57756"},"modified":"2024-04-16T01:07:31","modified_gmt":"2024-04-16T01:07:31","slug":"pubnub-publishes-and-subscribes-in-order-to-send-and-receive-messages","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/pubnub-publishes-and-subscribes-in-order-to-send-and-receive-messages\/","title":{"rendered":"PubNub publishes and subscribes . . . . . . . . in order to send and receive messages."},"content":{"rendered":"<p>[amp_mcq option1=&#8221;network&#8221; option2=&#8221;account&#8221; option3=&#8221;portal&#8221; option4=&#8221;keys&#8221; correct=&#8221;option3&#8243;]<!--more--><\/p>\n<p>The correct answer is: <strong>channels<\/strong>.<\/p>\n<p>PubNub is a real-time data streaming platform that allows you to publish and subscribe to channels in order to send and receive messages. A channel is a logical grouping of messages that are related to a specific topic. When you publish a message to a channel, all subscribers to that channel will receive the message. When you subscribe to a channel, you will receive all messages that are published to that channel.<\/p>\n<p>The other options are incorrect because:<\/p>\n<ul>\n<li>A network is a group of computers that are connected together. PubNub does not require you to be on a specific network in order to use it.<\/li>\n<li>An account is a way of identifying yourself to PubNub. You need to have an account in order to use PubNub.<\/li>\n<li>A portal is a web-based interface that allows you to manage your PubNub account. You do not need to use the portal in order to publish and subscribe to channels.<\/li>\n<li>Keys are used to authenticate your PubNub account. You need to have keys in order to publish and subscribe to channels.<\/li>\n<\/ul>\n<p>I hope this helps! Let me know if you have any other questions.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>[amp_mcq option1=&#8221;network&#8221; option2=&#8221;account&#8221; option3=&#8221;portal&#8221; option4=&#8221;keys&#8221; correct=&#8221;option3&#8243;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[730],"tags":[],"class_list":["post-57756","post","type-post","status-publish","format-standard","hentry","category-internet-of-things-iot","no-featured-image-padding"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.2 (Yoast SEO v23.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>PubNub publishes and subscribes . . . . . . . . in order to send and receive messages.<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/exam.pscnotes.com\/mcq\/pubnub-publishes-and-subscribes-in-order-to-send-and-receive-messages\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"PubNub publishes and subscribes . . . . . . . . in order to send and receive messages.\" \/>\n<meta property=\"og:description\" content=\"[amp_mcq option1=&#8221;network&#8221; 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