מה נכון לגבי Circuit level proxy?

The correct answer is: Hides the internal IP addresses and thus provides additional protection. Explanation: Circuit Level Proxy: It operates at the Session Layer (Layer 5) of the OSI model. Circuit level proxies do not inspect the content of the traffic itself; instead, they ensure that the packet flow between internal and external networks is valid. They mainly focus on creating and maintaining a connection between the client and server after initial approval. Hiding Internal IP Addresses: Circuit level proxies typically hide the internal IP addresses by creating a session between the internal client and the external server. This helps to mask internal network information from the external world, providing additional protection by preventing external entities from knowing the details of the internal network. Other options like content analysis and application-level traffic inspection refer to Application Layer proxies (such as web proxies), which operate at a different layer and provide different functionalities.