3 Comments on “Which of the following is BEST at blocking attacks and providing security at layer 7 of the OSI model?”

1. mike says:

   August 24, 2015 at 8:41 pm

   A. WAF- web application firewall

   
   
   
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2. Ching Shryock says:

   October 12, 2016 at 4:43 pm

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3. Super_Mario says:

   May 10, 2018 at 5:14 pm

   Process of elimination: NIDS, Routers and Switches do not operate at Layer 7.
   A web application firewall (WAF) is an appliance, server plugin, or filter that applies a set of rules to an HTTP conversation. Generally, these rules cover common attacks such as cross-site scripting (XSS) and SQL injection.
   By customizing the rules to your application, many attacks can be identified and blocked. The effort to perform this customization can be significant and needs to be maintained as the application is modified.
   As the protocols used to access a web server (typically HTTP and HTTPS) run in layer 7 of the OSI model, then web application firewall (WAF) is the correct answer.

   
   
   
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