NSE8_812 Network Security Expert 8 Written Exam Question and Answers

When multicast-skip-policy is enabled, no check is performed based on multicast policy. A multicast packet received on an interface is flooded unconditionally to all interfaces (except the incoming interface) belonging to the same forwarding domain. Multicast packets are forwarded even when there is no multicast policy or the multicast policy is set to deny. To forward multicast traffic based on multicast policy, multicast-skip-policy must be disabled. In transparent mode, there is a per-VDOM configuration to skip policy check and forward all multicast traffic. This command is only available in transparent mode, and is disabled by default.

https://community.fortinet.com/t5/FortiAnalyzer/Technical-Note-Understanding-FortiAnalyzer-time-related-fields/ta-p/197569

D. The administrator must first manually map the interface for each device with a meta field.

The Jinja template in the exhibit is expecting a meta field calledWANto be set on the managed FortiGate. This meta field will specify which interface on the FortiGate should be assigned the "WAN" role. If the meta field is not set, then the template will fail.

E. The template will fail because this configuration can only be applied with a CLI or TCL script.

The Jinja template in the exhibit is trying to configure the interface role on the managed FortiGate. This type of configuration can only be applied with a CLI or TCL script. The Jinja template will fail because it is not a valid CLI or TCL script.

FortiGate NAC LAN Segments are a feature that allows users to assign different VLANs to different LAN segments without changing the IP address of hosts or bouncing the switch port. This provides physical isolation while maintaining firewall sessions and avoiding DHCP issues. One benefit of using FortiGate NAC LAN Segments is that it allows for assignment of dynamic address objects matching NAC policy. This means that users can create firewall policies based on dynamic address objects that match the NAC policy criteria, such as device type, OS type, MAC address, etc. This simplifies firewall policy management and enhances security by applying different security profiles to different types of devices.References:https://docs.fortinet.com/document/fortigate/7.0.0/new-features/856212/nac-lan-segments-7-0-1

https://docs.fortinet.com/document/fortigate/7.0.0/new-features/856212/nac-lan-segments-7-0-1

C. The antivirus database queries FortiGuard with the hash of a scanned file. This is how the FortiGuard VOS service works. The FortiGate queries FortiGuardwith the hash of a scanned file, and FortiGuard returns a list of known malware signatures that match the hash.

E. The hash signatures are obtained from the FortiGuard Global Threat Intelligence database. This is where the FortiGuard VOS service gets its hash signatures from. The FortiGuard Global Threat Intelligence database is updated regularly with new malware signatures.

https://docs.fortinet.com/document/fortigate/7.4.1/administration-guide/889364/fortiguard-outbreak-prevention

The MTA adapter feature on FortiSandbox is a feature that allows FortiSandbox to act as a mail transfer agent (MTA) that can receive, inspect, and forward email messages from external sources. The MTA adapter feature can be used to integrate FortiSandbox with third-party email security solutions that do not support direct integration with FortiSandbox, such as Microsoft Exchange Server or Cisco Email Security Appliance (ESA). The MTA adapter feature can also be used to enhance email security by adding an additional layer of inspection and filtering before delivering email messages to the final destination. The MTA adapter feature can be enabled on FortiSandbox in an HA-Cluster, which is a configuration that allows two FortiSandbox units to synchronize their settings and data and provide high availability and load balancing for sandboxing services. However, one statement about this solution that is true is that the MTA adapter is only available in the primary node. This means that only one FortiSandbox unit in the HA-Cluster can act as an MTA and receive email messages from external sources, while the other unit acts as a backup node that can take over the MTA role if the primary node fails or loses connectivity. This also means that only one IP address or FQDN can be used to configure the external sources to send email messages to the FortiSandbox MTA, which is the IP address or FQDN of the primary node. References: https://docs.fortinet.com/document/fortisandbox/3.2.0/administration-guide/19662/mail-transfer-agent-mta https://docs.fortinet.com/document/fortisandbox/3.2.0/administration-guide/19662/high-availability-ha

https://docs.fortinet.com/document/fortisandbox/4.4.3/administration-guide/877925/mta-adapter

The soft reconfigure is correct by elimination (FGTs all support BGP Refresh, so question is not worded correctly - to refresh routes in advertisements, there is no need to do manually anything, after the change is committed to config FGT will send BGP Refresh message to the peers to notify them of it. The same is true for Cisco and Juniper routers. The question should ask "when routing policy was changed" - then yes, reconfiguraiton is the way to notify BGP peers that BGP policy was changed.

The customer wants to deploy a solution to authenticate the clients connected to a hardware switch interface of a FortiGate 400E device. A hardware switch interface is an interface that combines multiple physical interfaces into one logical interface, allowing them to act as a singleswitch with one IP address and one set of security policies. The customer wants to use 802.1X authentication for this solution, which is a standard protocol for port-based network access control (PNAC) that authenticates clients based on their credentials before granting them access to network resources. One condition that allows authentication to the client devices before assigning an IP address is that devices connected directly to ports 3 and 4 can perform 802.1X authentication. This is because ports 3 and 4 are part of the hardware switch interface named “lan”, which has an IP address of 10.10.10.254/24 and an inbound SSL inspection profile named “ssl-inspection”. The inbound SSL inspection profile enables the FortiGate device to intercept and inspect SSL/TLS traffic from clients before forwarding it to servers, which allows it to apply security policies and features such as antivirus, web filtering, application control, etc. However, before performing SSL inspection, the FortiGate device needs to authenticate the clients using 802.1X authentication, which requires the clients to send their credentials (such as username and password) to the FortiGate device over a secure EAP (Extensible Authentication Protocol) channel. The FortiGate device then verifies the credentials with an authentication server (such as RADIUS or LDAP) and grants or denies access to the clients based on the authentication result. Therefore, devices connected directly to ports 3 and 4 can perform 802.1X authentication before assigning an IP address. Another condition that allows authentication to the client devices before assigning an IP address is that client devices must have 802.1X authentication enabled. This is because 802.1X authentication is a mutual process that requires both the client devices and the FortiGate device to support and enable it. The client devices must have 802.1X authentication enabled in their network settings, which allows them to initiate the authentication process when they connect to the hardware switch interface of the FortiGate device. The client devices must also have an 802.1X supplicant software installed, which is a program that runs on the client devices and handles the communication with the FortiGate device using EAP messages. The client devices must also have a trusted certificate installed, which is used to verify the identity of the FortiGate device and establish a secure EAP channel. Therefore, client devices must have 802.1X authentication enabled before assigning an IP address. References: https://docs.fortinet.com/document/fortigate/7.0.0/administration-guide/19662/hardware-switch-interfaces https://docs.fortinet.com/document/fortigate/7.0.0/administration-guide/19662/802-1x-authentication

https://docs.fortinet.com/document/fortigate/7.2.0/new-features/959502/support-802-1x-on-virtual-switch-for-certain-np6-platforms

https://docs.fortinet.com/document/fortimanager/7.4.2/administration-guide/30332/verifying-devices-with-private-data-encryption-enabled

https://community.fortinet.com/t5/FortiGate/Technical-Tip-How-to-perform-zero-touch-provisioning-with/ta-p/197623

A is correct because the automatically created trunk name is based on the MAC address of the FortiSwitch unit. When the FortiSwitch unit is replaced, the MAC address will change, but the trunk name will not change.

B is correct because CLAG-ICL is a manually configured link aggregation group. When the FortiSwitch unit is replaced, the CLAG-ICL configuration will need to be manually reconfigured on the new FortiSwitch unit.

The other options are incorrect. Option C is incorrect because the automatically created trunk name does not change when the FortiSwitch unit is replaced. Option D is incorrect because MCLAG-ICL is a manually configured link aggregation group and will not be automatically reconfigured when the FortiSwitch unit is replaced.

References:

Configuring link aggregation on FortiSwitches | FortiSwitch / FortiOS 7.0.4 - Fortinet Document Library

Managing FortiLink | FortiGate / FortiOS 7.0.4 - Fortinet Document Library

https://docs.fortinet.com/document/fortiswitch/7.0.8/devices-managed-by-fortios/173284/replacing-a-managed-fortiswitch-unit

The prefix list in the exhibit is configured to match prefixes that are either in the 172.16.204.0/24 subnet or in the 172.62.0.0/16 subnet. The routes that match these prefixes will be active in the routing table on the HQ firewall.

The routes that match the following prefixes will not be active in the routing table:

172.16.201.96/29

172.62.0.64/27

These routes do not match the criteria set by the prefix list.

References:

Prefix lists | FortiGate / FortiOS 7.4.0 - Fortinet Document Library

Configuring BGP | FortiGate / FortiOS 7.4.0 - Fortinet Document Library

https://docs.fortinet.com/document/fortigate/7.0.0/new-features/710924/http-2-support-in-proxy-mode-ssl-inspection

The FortiGate VM is a virtual firewall appliance that can run on various hypervisors, such as ESXi, Hyper-V, KVM, etc. The adapter type for NICs on a FortiGate VM determines the performance and compatibility of the network interface cards with the hypervisor and the physical network. There are different adapter types available for NICs on a FortiGate VM, such as E1000, VMXNET3, SR-IOV, etc. If performance is the main concern and cost is not a factor, one option is to use native ESXi networking with VMXNET3 adapter type for NICs on a FortiGate VM that will run on an ESXi hypervisor. VMXNET3 is a paravirtualized network interface card that is optimized for performance in virtual machines and supports features such as multiqueue support, Receive Side Scaling (RSS), Large Receive Offload (LRO), IPv6 offloads, and MSI/MSI-X interrupt delivery. Native ESXi networking means that the FortiGate VM uses the standard virtual switch (vSwitch) or distributed virtual switch (dvSwitch) provided by the ESXi hypervisor to connect to the physical network. This option can provide high performance and compatibility for NICs on a FortiGate VM without requiring additional hardware or software components. References: https://docs.fortinet.com/document/fortigate/7.0.0/vm-installation-for-vmware-esxi/19662/installing-fortigate-vm-on-vmware-esxi https://docs.fortinet.com/document/fortigate/7.0.0/vm-installation-for-vmware-esxi/19662/networking

The output in Exhibit A shows that the VPN tunnel is not established because the peer IP address is incorrect. The output in Exhibit B shows that the peer IP address is 192.168.1.100, but the baseline VPN configuration in Exhibit C shows that the peer IP address should be 192.168.1.101.

To restore VPN connectivity, you need to change the peer IP address in the VPN tunnel configuration to 192.168.1.101. The correct configuration is shown below:

config vpn ipsec phase1-interface

edit "wan"

set peer-ip 192.168.1.101

set peer-id 192.168.1.101

set dhgrp 1

set auth-mode psk

set psk SECRET_PSK

next

end

Option A is incorrect because it does not change the peer IP address. Option B is incorrect because it changes the peer IP address to 192.168.1.100, which is the incorrect IP address. Option D is incorrect because it does not include the necessary configuration for the VPN tunnel.