Cisco 350-701 Practice Test 6
An organization is implementing URL blocking using Cisco Umbrell a. The users are able to go to some sites but other sites are not accessible due to an error. Why is the error occurring?
Client computers do not have the Cisco Umbrella Root CA certificate installed.
IP-Layer Enforcement is not configured.
Client computers do not have an SSL certificate deployed from an internal CA server.
Intelligent proxy and SSL decryption is disabled in the policy
Other features are dependent on SSL Decryption functionality, which requires the Cisco Umbrella root certificate. Having the SSL Decryption feature improves:
Custom URL Blocking—Required to block the HTTPS version of a URL.
…U mbrella's Block Page and Block Page Bypass features present an SSL certificate to browsers that make connections to HTTPS sites. This SSL certificate matches the requested site but will be signed by the Cisco Umbrella certificate authority (CA). If the CA is not trusted by your browser, an error page may be displayed.
Typical errors include "The security certificate presented by this website was not issued by a trusted certificate authority" (Internet Explorer), "The site's security certificate is not trusted!" (Google Chrome) or "This Connection is Untrusted" (Mozilla Firefox). Although the error page is expected, the message displayed can be confusing and you may wish to prevent it from appearing.
To avoid these error pages, install the Cisco Umbrella root certificate into your browser or the browsers of your users—if you're a network admin.
Reference: https://docs.umbrella.com/deployment-umbrella/docs/rebrand-cisco-certificate-importinformation