Fortinet Updated FCSS_EFW_AD-7.6 Exam Questions and Answers by iosif

False positives in Intrusion Prevention System (IPS) analysis can disrupt legitimate traffic and negatively impact user experience. To reduce false positives while maintaining security, administrators can:

● Use IPS profile extensions to fine-tune the settings based on the organization's environment.

● Select the correct operating system, protocol, and application types to ensure that IPS signatures match the network's actual traffic patterns, reducing false positives.

● Customize signature selection based on the network’s specific services, filtering out unnecessary or irrelevant signatures.

ADVPN (Auto-Discovery VPN) 2.0 is the optimal solution for enabling direct spoke-to-spoke communication without passing through the hub, while also allowing automatic link selection based on quality metrics.

● Dynamic Direct Tunnels:

● ADVPN 2.0 allows spokes to establish direct IPsec tunnels dynamically based on traffic patterns, reducing latency and improving performance.

● Unlike static VPNs, spokes do not need to pre-configure tunnels for each other.

● Automatic Link Optimization:

● ADVPN 2.0 monitors the quality of multiple internet connections on each spoke.

● It automatically switches to the best available connection when the primary link degrades or fails.

● This is achieved by dynamically adjusting BGP-based routing or leveraging SD-WAN integration.

The Internet Service Database (ISDB) in FortiGate is used to enforce content filtering at Layer 3 (Network Layer) and Layer 4 (Transport Layer) of the OSI model by identifying applications based on their predefined IP addresses and ports.

FortiGate has a predefined list of all IPs and ports for specific applications downloaded from FortiGuard:

● FortiGate retrieves and updates a predefined list of IPs and ports for different internet services from FortiGuard.

● This allows FortiGate to block specific services at Layer 3 and Layer 4 without requiring deep packet inspection.

The ISDB blocks the IP addresses and ports of an application predefined by FortiGuard:

● ISDB works by matching traffic to known IP addresses and ports of categorized services.

● When an application or service is blocked, FortiGate prevents communication by denying traffic based on its destination IP and port number.

When standardizing the deployment of FortiGate devices across branches using FortiManager, the best practice is to use metadata variables. This allows for dynamic interface configuration while maintaining a single, consistent policy package for all branches.

● Metadata variables in FortiManager enable interface roles and configurations to be dynamically assigned based on the specific FortiGate device.

● This ensures scalability and consistent security policy enforcement across all branches without manually adjusting interface settings for each device.

● When a new branch FortiGate is deployed, metadata variables automatically map to the correct physical interfaces, reducing manual configuration errors.