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For configuring an IPsec VPN tunnel for a sales employee traveling abroad, the "Remote Access" template is the most appropriate choice. This template is designed to allow remote users to securely connect to the internal network of an organization from any location using FortiClient or a compatible client. The other options, such as "Site to Site," "Dial up User," and "iHub-and-Spoke," are used for connecting different networks or sites, not individual remote users.

References:

FortiOS 7.4.1 Administration Guide: IPsec Wizard Template Types

https://docs.fortinet.com/document/fortigate/7.4.4/administration-guide/342836/lowest-cost-sla-strategy

While Flow-Based inspection mode is limited, it still can scan viruses if they are not overly complex. SSL certificate inspection only inspects the certificate of the encrypted traffic, ensuring it is valid and not self-signed or expired. It does not decrypt the actual content of the SSL/TLS traffic, meaning that any malicious content inside encrypted HTTPS traffic will pass through without being inspected. So here, we can assume the EICAR file was accessed via HTTPS.

For traffic that does not match any of the defined SD-WAN rules, the default implicit SD-WAN rule is applied. By default, the FortiGate uses a "source-destination IP-based" algorithm, which means all traffic from a specific source IP to a specific destination IP is sent through the same interface. This ensures that a consistent path is used for traffic between the same source and destination IP addresses. Options B, C, and D do not apply because the default algorithm does not prioritize by latency, session count, or source IP alone.

References:

FortiOS 7.4.1 Administration Guide: SD-WAN Load Balancing Algorithms​

To deny access to the web server for Remote-User2 while allowing Remote-User1 to access the same web server, two configuration changes can be made:

Enable match-vip in the Deny policy:By enabling thematch-vipoption in the Deny policy, the FortiGate will check for virtual IP (VIP) objects during policy matching. This setting allows the firewall policy to correctly identify and block traffic directed to a specific mapped IP address, such as the web server, when using a VIP configuration.

Set the Destination address as Webserver in the Deny policy:Setting the Destination address to "Webserver" in the Deny policy ensures that the policy specifically targets traffic attempting to reach the web server. This configuration helps to precisely control which traffic should be blocked, focusing the Deny policy on the intended destination.

References:

FortiOS 7.4.1 Administration Guide: Deny matching with a policy with a virtual IP applied​

FortiOS 7.4.1 Administration Guide: Configuring Policies with VIPs

The Reverse Path Forwarding (RPF) check is run on the first sent packet of any new session to ensure that the packet arrives on a legitimate interface. This check protects the network from IP spoofing attacks by verifying that a return route exists from the receiving interface back to the source IP address. If the route is invalid or not found, the packet is discarded. Options B and C are incorrect because RPF checks are performed on the first sent packet, not the reply packet.

References:

FortiOS 7.4.1 Administration Guide: Reverse Path Forwarding (RPF) Check