Free Practice Questions for Fortinet FCSS_EFW_AD-7.6 Exam

Comprehensive and Detailed Explanation From Exact Extract of Enterprise Firewall 7.6 Administrator documents:

Based on the FortiOS 7.6 Administration Guide and the HA Virtual Clustering documentation, the exhibit demonstrates a Virtual Clustering environment where multiple VDOMs are distributed across an HA cluster.

In a virtual cluster setup, VDOMs are assigned to either virtual cluster 1 (vcluster 1) or virtual cluster 2 (vcluster 2). Each virtual cluster has its own independent primary unit selection process. The primary unit for a virtual cluster is determined based on the standard HA selection criteria: Monitored Interfaces > HA Uptime > Priority > Serial Number.

According to the exhibit:

Virtual Cluster 1 (edit 1) contains VDOMs "Core1" and "root".

Virtual Cluster 2 (edit 2) contains VDOM "Core2".

The HA uptime is stated to be the same for both devices.

For edit 2 (Core2), HQ-NGFW-1 has a priority of 150, while HQ-NGFW-2 has a priority of 120.

In both units, override is disabled (default).

Since the uptime is equal and no monitored interfaces are down, the cluster uses the Priority value to select the primary unit for each vcluster. Currently, HQ-NGFW-1 is the primary for Core2 because its priority (150) is higher than HQ-NGFW-2's (120). To ensure HQ-NGFW-2 handles the Core2 traffic, its priority for virtual cluster 2 must be increased to a value higher than 150. Option C (changing the priority from 120 to 200) achieves this.

The diagram shows a multi-area OSPF network where:

● FortiGate A is in OSPF Area 0 (Backbone area).

● FortiGate B is in OSPF Area 0.0.0.1 and is connected to an RIP network.

To ensure that OSPF Area 0 (0.0.0.0) learns routes from the external RIP network, FortiGate B must redistribute RIP routes into OSPF.

Steps to achieve this:

1. Enable route redistribution on FortiGate B to inject RIP-learned routes into OSPF.

2. This allows OSPF Area 0.0.0.1 to forward RIP routes to OSPF Area 0 (0.0.0.0), making the external network visible.

This IPsec Phase 1 configuration defines a dynamic VPN tunnel that can accept connections from multiple peers. The settings chosen here suggest a configuration optimized for networks with intermittent traffic patterns while ensuring resources are used efficiently.

Key configurations and their impact:

● set type dynamic → This allows multiple peers to establish connections dynamically without needing predefined IP addresses.

● set ike-version 2 → Uses IKEv2, which is more efficient and supports features like EAP authentication and reduced rekeying overhead.

● set dpd on-idle → Dead Peer Detection (DPD) is triggered only when the tunnel is idle, reducing unnecessary keep-alive packets and improving resource utilization.

● set add-route enable → FortiGate automatically adds the route to the routing table when the tunnel is established, ensuring connectivity when needed.

● set proposal aes128-sha256 aes256-sha256 → Uses strong encryption and hashing algorithms, ensuring a secure connection.

● set keylife 28800 → Sets a longer key lifetime (8 hours), reducing the frequency of rekeying, which is beneficial for stable connections.

Because DPD is set to on-idle, the tunnel will not constantly send keep-alive messages but will still ensure connectivity when traffic is detected. This makes the configuration ideal for networks with regular but non-continuous traffic, balancing security and resource efficiency.

neighbor-group:

● This command is used to group multiple BGP neighbors with the same configuration, reducing redundant configuration.

● Instead of defining individual BGP settings for each spoke, the administrator can create a neighbor-group and apply the same policies, reducing manual work.

neighbor-range:

● This command allows the configuration of a range of neighbor IPs dynamically, reducing the need to manually define each spoke neighbor.

● It automatically adds BGP neighbors that match a given prefix, simplifying deployment.

From the BGP neighbor status output, the key issue is that BGP is stuck in the "Idle" state, meaning the FortiGate is unable to establish a BGP session with its peer 100.65.4.1 (Remote AS 65300).

The output also shows:

● "Not directly connected EBGP" → This means the BGP peer is not on the same subnet, requiring multihop BGP.

● "Update source is Loopback" → Since a loopback interface is used, FortiGate must be configured to allow BGP neighbors over multiple hops.

To resolve this issue, the administrator must enable ebgp-enforce-multihop, which allows BGP sessions to be established even when the neighbors are not directly connected.

When FortiGate processes the first packets of a session, it follows a sequence of steps to determine how the traffic should be handled before establishing a session. The initial step involves:

● Access Control List (ACL) checks: Determines if the traffic should be allowed or blocked based on predefined security rules.

● Hardware Packet Engine (HPE) inspections: Ensures that packet headers are valid and comply with protocol standards.

● IP Integrity Header Checking: Verifies if the IP headers are intact and not malformed or spoofed.

Once these security inspections are completed and the session is validated, FortiGate then installs the session in hardware (if offloading is enabled) or processes it in software.

Comprehensive and Detailed 150 to 200 words of Explanation From Exact Extract of Enterprise Firewall 7.6 Administrator documents:

Based on the FortiOS 7.6 Infrastructure study guide and official documentation regarding OSPF monitoring, the command output get router info ospf status provides critical details about the OSPF process.

Multiple Areas (Option D): The last line of the exhibit explicitly states, "This router is an ABR" (Area Border Router). By definition in the OSPF protocol, an ABR is a router that is connected to multiple OSPF areas, typically Area 0 (the backbone) and at least one other non-backbone area.

OSPF ECMP (Option A): The output indicates that the OSPF process "Conforms to RFC2328". RFC 2328 is the standard for OSPFv2, which includes the capability for Equal-Cost Multi-Path (ECMP). In FortiOS, when OSPF is enabled and multiple routes to the same destination have the same cost, ECMP is supported by default unless specifically limited by the maximum-paths configuration. The mention of this RFC compliance in the status output confirms the engine's capability and support for multi-path routing.

Option C is incorrect because the output does not label the device as an ASBR (Autonomous System Boundary Router), which would be required to inject external routing information. Option B is incorrect because "ABR" refers to area hierarchy, not the election status (DR/BDR) on a specific network segment.

In BGP (Border Gateway Protocol), a neighbor (peer) configuration is required to establish a connection between two BGP routers. Since FortiGate A is connecting to the ISP (Autonomous System 10) from AS 30, the administrator must define the ISP's BGP router as a neighbor.

The config neighbor command is used to:

● Define the ISP's IP address as a BGP peer

● Specify the remote AS (AS 10 in this case)

● Allow BGP route exchanges between FortiGate A and the ISP

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.