You have been tasked with blocking user access to websites that violate company policy, but the sites use dynamic IP addresses. What is the best practice for URL filtering to solve the problem?
A. Enable URL filtering and use URL categorization to block the websites that violate company policy.
B. Enable URL filtering and create a blacklist to block the websites that violate company policy.
C. Enable URL filtering and create a whitelist to block the websites that violate company policy.
D. Enable URL filtering and use URL categorization to allow only the websites that company policy allows users to access.
E. Enable URL filtering and create a whitelist to allow only the websites that company policy allows users to access.
In my opinion I prefer to use DNS blacklisting 😀
Because blacklist usually allows defined URL but the question specifically mentions that websites uses dynamic IP. So therefore blocking by category is the most relevant answer in this question.
Why does Answer B., a blacklist not match?