Answer:
captive portal
Explanation:
Captive portal -
It is a web page , which is opened along side the web browser which get displayed on to the fresh connected users of the Wi-Fi network , just before it gets the assurance to use the resources of the network , is known as captive portal .
Generally captive portal requires authentication or payment for access the internet resource .
Hence , from the question information , the example shown in the question is about captive portal .
