A security administrator needs to block all incoming, unencrypted web traffic to a company's public web server at IP address 10.10.5.25. To accomplish this, the administrator is writing a new firewall rule. Which of the following rules will successfully implement this policy?
The correct rule to block unencrypted web traffic (HTTP) is deny tcp any host 10.10.5.25 eq 80. This rule correctly identifies the 'deny' action, the 'tcp' protocol used by HTTP, any source address ('any'), the specific destination server ('host 10.10.5.25'), and the correct destination port for HTTP ('eq 80'). The other options are incorrect because they either block the wrong port (443 for HTTPS), use the wrong protocol (UDP), or perform the wrong action (allow).
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