Fortinet Network Security Expert NSE7_CDS_AR-7.6 Fortinet Study Notes

Comprehensive and Detailed Explanation From FortiOS 7.6, FortiWeb 7.4 Exact Extract study guide:

According to the FortiOS 7.6 AWS Administration Guide and the Public Cloud Security documentation regarding AWS VPC Flow Logs, the level at which a flow log is created determines the scope of the data collected:

Flow Log Scope and Hierarchy (Option A): AWS VPC Flow Logs can be created at three different levels: VPC, Subnet, or Network Interface (ENI).

As seen in the exhibit (VPC flow log wizard), the flow log is being created for the resource vpc-09d6e4631cd49d2b3. When a flow log is created at the VPC level, it captures IP traffic for all network interfaces within that VPC.

To isolate traffic specifically for a single FortiGate EC2 instance and avoid seeing traffic from other instances in the same VPC or subnet, the administrator must create a flow log at the Network Interface level. This provides the most granular visibility and ensures the logs only contain traffic associated with the specific ENIs of that FortiGate instance.

Why other options are incorrect:

Option B: Changing the maximum aggregation interval from 10 minutes to 1 minute increases the frequency of log delivery and captures shorter-lived flows more accurately, but it does not change the scope of the resources being monitored.

Option C: This is a general troubleshooting statement and not a configuration action within the AWS Flow Log wizard that would filter the traffic by instance.

Option D: Changing the destination to Amazon Data Firehose changes how the logs are processed and delivered (e.g., for streaming to a SIEM), but the source data is still determined by the resource level selected (VPC vs. Interface).

Comprehensive and Detailed Explanation From FortiOS 7.6, FortiWeb 7.4 Exact Extract study guide:

Based on the FortiCNAPP (formerly Lacework) Cloud Security documentation regarding Attack Path Analysis and Explorer functionality:

Attack Path Generation (Option A): In FortiCNAPP, an "Attack Path" is a visualized sequence of potential exploit steps that an external attacker could take to reach a sensitive resource. For the platform to generate and display an attack path, the target resource must be externally reachable.

Evidence in the Exhibit: * The exhibit shows a list of EC2 and GCP instances.

The first two results (Resource IDs i-0d2d... and i-0e29...) have values populated in the Public IP Addresses column (44.197.... and 3.226....). Consequently, these are the only two resources showing a value of 1 in the Attack Paths column.

The remaining resources in the list do not have public IP addresses listed in the exhibit's view, and as a result, their Attack Paths count is 0. This confirms that FortiCNAPP specifically calculates these paths for resources that have a direct entry point from the internet via a public IP.

Contextual Risk Assessment: FortiCNAPP prioritizes attack path analysis for internet-exposed assets because they represent the highest immediate risk. While internal resources may have vulnerabilities, the lack of a public-facing network interface means there is no direct external "path" to visualize in this specific Explorer view.