Which approach permits access only to approved URLs?

Which approach permits access only to approved URLs?

• A. URL blacklisting
• B. BeEF
• C. URL whitelisting
• D. Application blacklisting

Answer: (C)

URL whitelisting is an access-control approach that allows only requests to URLs that are explicitly approved. By maintaining a list of permitted sites at the gateway, proxy, or firewall, every attempt to reach a site not on the list is blocked. This is the approach that lets you grant access only to approved URLs, delivering strict, predictable control over web access and reducing exposure to phishing and malware because unapproved destinations never load. It does require ongoing maintenance to add new trusted sites and remove ones that should no longer be accessible, but its benefit is the strongest guarantee of controlled web access. URL blacklisting blocks known bad sites, but it still allows everything else, so new malicious sites can slip through. BeEF is a browser-exploitation framework used for testing client-side security, not a policy for URL access control. Application blacklisting focuses on blocking specific applications rather than the web addresses users can visit.

URL whitelisting is an access-control approach that allows only requests to URLs that are explicitly approved. By maintaining a list of permitted sites at the gateway, proxy, or firewall, every attempt to reach a site not on the list is blocked. This is the approach that lets you grant access only to approved URLs, delivering strict, predictable control over web access and reducing exposure to phishing and malware because unapproved destinations never load. It does require ongoing maintenance to add new trusted sites and remove ones that should no longer be accessible, but its benefit is the strongest guarantee of controlled web access.

URL blacklisting blocks known bad sites, but it still allows everything else, so new malicious sites can slip through. BeEF is a browser-exploitation framework used for testing client-side security, not a policy for URL access control. Application blacklisting focuses on blocking specific applications rather than the web addresses users can visit.