Fortinet NSE8_812 PDF Exam Questions:

Forward Error Correction (FEC) is a feature that can improve the quality of SD-WAN network traffic by adding redundant packets to the original packets. The ratio of redundant packets to base packets is determined by the FEC mode, which can be set to low, medium, or high. In low mode, the ratio is 1:10, in medium mode, the ratio is 2:8, and in high mode, the ratio is 3:5. The FEC mode can be configured manually or automatically based on the bandwidth and packet loss of the network. In this case, since the download bandwidth is 500 Mbps and the packet loss is 8%, the FEC mode is automatically set to high, which means that 3 redundant packets are added for every 5 base packets. Reference: https://docs.fortinet.com/document/fortigate/7.0.0/sd-wan/19662/forward-error-correction-fec

The diagnose command shown in the output is used to display information about NP6 packet descriptor queues. The output shows that there are 16 NP6 units in total, and each unit has four XAUI ports (XA0-XA3). The output also shows that there are some non-zero values in the columns PDQ ACCU (packet descriptor queue accumulated counter) and PDQ DROP (packet descriptor queue drop counter). These values indicate that there are some packet descriptor queues that have reached their maximum capacity and have dropped some packets at the XAUI ports. This could be caused by congestion or misconfiguration of the XAUI ports or the ISF (Internal Switch Fabric). Reference: https://docs.fortinet.com/document/fortigate/7.0.0/cli-reference/19662/diagnose-np6-pdq

User defined Lookup Table Data (LTD) is a feature that allows users to import custom data into FortiSIEM for correlation, reporting, and analysis purposes. Users can create LTD files in CSV format and import them into FortiSIEM using two methods: FTP or API. FTP is a file transfer protocol that allows users to upload LTD files to a designated folder on the FortiSIEM server. API is an application programming interface that allows users to send HTTP requests to upload LTD files to FortiSIEM using RESTful web services. Reference: https://docs.fortinet.com/document/fortisiem/6.4.0/administration-guide/19662/user-defined-lookup-table-data

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

FortiMail Cloud service is a cloud-based email security solution that integrates with Office 365 to provide protection against spam, malware, phishing, data loss, etc. To use FortiMail Cloud service with Office 365, users need to configure both FortiMail Cloud settings and Office 365 settings properly. One possible reason for outgoing emails not reaching the recipients' mailboxes is that the FortiMail access control rules to relay from Office 365 servers public IPs are missing. This means that FortiMail Cloud service does not recognize the Office 365 servers as authorized senders and rejects the outgoing emails. Users need to add the Office 365 servers public IPs to the FortiMail access control rules to allow relaying. Another possible reason for outgoing emails not reaching the recipients' mailboxes is that a Mail Flow connector from the Exchange Admin Center has not been set properly to the FortiMail Cloud FQDN. This means that Office 365 does not route the outgoing emails to the FortiMail Cloud service for scanning and delivery. Users need to create a Mail Flow connector from the Exchange Admin Center and specify the FortiMail Cloud FQDN as the smart host. Reference: https://docs.fortinet.com/document/fortimail-cloud/6.4.0/administration-guide/19662/integrating-fortimail-cloud-with-office-365