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Fortinet Network Security Expert 4 Written Exam (400) Sample Questions:

1. Which of the following statements best describe what a FortiGate does when packets match a black hole route?

A) Packets are routed based on the information in the policy-based routing table.
B) Packet are routed back to the originator.
C) An ICMP error message is sent back to the originator.
D) Packets are dropped.

2. Which statements correctly describe transparent mode operation? (Choose three.)

A) The FortiGate acts as transparent bridge and forwards traffic at Layer-2.
B) All interfaces of the transparent mode FortiGate device most be on different IP subnets.
C) Ethernet packets are forwarded based on destination MAC addresses, NOT IP addresses.
D) Permits inline traffic inspection and firewalling without changing the IP scheme of the network.
E) The transparent FortiGate is clearly visible to network hosts in an IP trace route.

3. In FortiOS session table output, what is the correct 'proto_state' number for an established, non-proxied TCP connection?

A) 01
B) 05
C) 00
D) 11

4. A new version of FortiOS firmware has just been released. When you upload new firmware, which is true?

A) No settings are preserved. You must completely reconfigure.
B) If you upload the firmware image via the boot loader's menu from a TFTP server, it will not preserve the configuration. But if you upload new firmware via the GUI or CLI, as long as you are following a supported upgrade path, FortiOS will attempt to convert the existing configuration to be valid with any new or changed syntax.
C) No settings are preserved. After the upgrade, you must upload a configuration backup file. FortiOS will ignore any commands that are not valid in the new OS. In those cases, you must reconfigure settings that are not compatible with the new firmware.
D) You must use FortiConverter to convert a backup configuration file into the syntax required by the new FortiOS, then upload it to FortiGate.

5. The exhibit shows a part output of the diagnostic command 'diagnose debug application ike
255', taken during establishment of a VPN. Which of the following statement are correct concerning this output? (choose two)

A) The output corresponds to a phase 2 negotiation
B) The IP address of the remote IPsec VPN peer is 172.20.187.114
C) The quick mode selectors negotiated between both IPsec VPN peers is 0.0.0.0/32 for both source and destination addresses.
D) NAT-T enabled and there is third device in the path performing NAT of the traffic between both IPsec VPN peers.

Solutions: