Fortinet EMEA-Advanced-Support - Fortinet EMEA Advanced Support Exam

When FortiGate detects a SYN flood attack, it applies rate limiting to SYN packets via a DoS policy, dropping excessive packets to mitigate the attack. It does not drop all packets (A), enable proxy inspection (B), or redirect traffic (D). Exact extract: "FortiGate mitigates SYN flood attacks using DoS policies, which apply rate limiting to SYN packets to prevent overwhelming the system."

FortiGate’s DoS (Denial of Service) Policy limits the rate of incoming connections or packets to mitigate DDoS attacks, such as SYN floods, by setting thresholds for specific traffic types. IPS Signatures (B) detect specific attack patterns, Application Control (C) manages app usage, and Web Filtering (D) blocks URLs, none of which focus on rate limiting. Exact extract: "DoS policies protect against DDoS attacks by limiting the rate of incoming connections or packets, such as SYN floods, based on configured thresholds."

Traffic Logs in FortiGate record all traffic events, including denied packets, with details like source, destination, and policy ID. Security Logs (B) cover UTM events, Event Logs (C) system events, and System Logs (D) hardware or system status, not specifically denied traffic. Exact extract: "Traffic Logs record all packet activity, including allowed and denied traffic, with details such as source/destination IPs, ports, and the firewall policy applied."

Email clients use POP3 (Post Office Protocol) and IMAP4 (Internet Message Access Protocol) to retrieve emails from a server. POP3 downloads emails and typically removes them from the server, while IMAP4 allows synchronized access. SMTP is used for sending emails, and SNMP is for network monitoring, not email retrieval. Exact extract: "Email clients use POP3 or IMAP to retrieve email messages from a mail server... IMAP allows users to access and manage email directly on the server, while POP3 typically downloads messages to the client."

Auto Discovery VPN (ADVPN) in FortiGate enables dynamic routing protocols (e.g., OSPF, BGP) to propagate updates through IPsec VPN tunnels by automatically creating shortcut paths between spokes. This simplifies configuration and enhances scalability in hub-and-spoke topologies. Route-based VPN (D) supports routing but not dynamic discovery, VRF (C) is for segmentation, and Dynamic Routing Gateway (B) is not a standard Fortinet feature. Exact extract: "ADVPN allows dynamic routing protocols to be used over IPsec VPN tunnels, enabling spokes to discover and communicate directly via shortcuts, improving efficiency in hub-and-spoke setups."