Did you know the answer to the Network+ practice test question posted last week? Click Like if you knew it. Q. You need to add the capability to filter Internet traffic through a firewall based on keywords defined by a company. What would you use? A. An implicit deny firewall B. A content filter C. An ACL D. Stateful inspection firewall Answer: B is correct. A content filter can filter traffic based on keywords or web sites addresses. Some firewalls include the ability to filter traffic with a built-in content filter. A is incorrect. Firewalls use an implicit deny philosophy where they block all traffic except for traffic that has been explicitly allowed. An implicit deny philosophy does not provide content filtering. C is incorrect. An access control list (ACL) on a firewall identifies traffic that is allowed or blocked based on IP addresses, ports, and protocols but cannot be used to block traffic based on keywords. D is incorrect. A stateful inspection firewall can block or allow traffic based on the state of a connection, but not based on keywords. For example, if a packet has been allowed into a network, a stateful inspection firewall will allow the returned traffic out of the firewall. Feel free to share this question and answer with other people preparing for the Network+ exam. ow.ly/o2iO8
Posted on: Wed, 13 Nov 2013 13:56:00 +0000
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