Checkpoint Updated 156-215.81 Exam Questions and Answers by rosabella

Stateful Inspection is a firewall technology that inspects both the header and the payload of each packet and keeps track of the state and context of each connection. Packet Filtering is a firewall technology that inspects only the header of each packet and does not keep track of the state or context of each connection. A benefit that Stateful Inspection offers over Packet Filtering is that only one rule is required for each connection, whereas Packet Filtering requires two rules for each connection (one for each direction). Stateful Inspection also offers other benefits over Packet Filtering, such as enhanced security, performance, and flexibility. Stateful Inspection does not offer unlimited connections because of virtual memory usage, nor does it avoid using memory to record the protocol used by the connection.References: [Stateful Inspection], [Packet Filtering], [Firewall Technologies]

The Application Layer Firewalls inspect traffic through the Lower layer(s) of the TCP/IP model and up to and including the Application layer. The lower layers are the Physical, Data Link, and Network layers, which deal with the transmission and routing of packets. The Application layer is the highest layer of the TCP/IP model, which provides services and protocols for specific applications such as HTTP, FTP, SMTP, etc. The Application Layer Firewalls can inspect the content and context of the traffic and enforce granular security policies based on various criteria such as user identity, application identity, content type, etc. References: [Check Point R81 Firewall Administration Guide]

When enabling tracking on a rule, the default option is Log. This option generates a log entry for each connection that matches the rule. The log entry contains information such as the source, destination, service, action, and time of the connection.References: [Logging and Monitoring R81], [Logging and Monitoring]

Certificate based Authentication is the only authentication method available between two Security Gateway managed by the same SMS. This is because certificate based authentication provides stronger security and easier management than pre-shared secret authentication. The other options are either incorrect or irrelevant for this scenario. References: [Check Point R80.10 - Part 6 - Certificate Based Authentication]