Ultimate Guide to Prepare Free Fortinet FCSS_EFW_AD-7.4 Exam Questions and Answer
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NEW QUESTION # 40
Refer to the exhibit, which shows a partial troubleshooting command output.
An administrator is extensively using IPsec on FortiGate. Many tunnels show information similar to the output shown in the exhibit.
What can the administrator conclude?
- A. Only the inbound IPsec SA is copied to the NPU.
- B. IPsec SAs cannot be offloaded.
- C. Only the outbound IPsec SA is copied to the NPU.
- D. The two IPsec SAs, inbound and outbound, are copied to the NPU.
Answer: D
Explanation:
The diagnose vpn tunnel list name Hub2Spoke1 command output provides key information about the offloading status of an IPsec VPN tunnel to the Network Processing Unit (NPU).
npu_flag=20:
This flag indicates that both inbound and outbound IPsec Security Associations (SAs) have been offloaded to the NPU, meaning the VPN traffic is processed in hardware instead of the CPU.
npu_rgwy=10.10.2.2 and npu_lgwy=10.10.1.1:
These IPs represent the remote gateway (rgwy) and local gateway (lgwy), confirming that the tunnel is successfully offloaded.
npu_selid=1:
This value means the session selector for the NPU offloaded SA is active.
Since both inbound and outbound SAs are offloaded, the administrator can conclude that the FortiGate NPU is handling IPsec encryption and decryption efficiently, reducing CPU load and improving VPN performance.
NEW QUESTION # 41
View the exhibit, which contains the output of a debug command, then answer the question below.
Why is the gateway to source for this session 0.0.0.0?
- A. The FortiGate is not doing NAT over this traffic.
- B. The the source of the traffic is directly connected to the FortiGate.
- C. FortiGate has only seen the first packet sent by the originator.
- D. The traffic for this session is ICMP.
Answer: C
NEW QUESTION # 42
What is the initial step performed by FortiGate when handling the first packets of a session?
- A. Security inspections such as ACL, HPE, and IP integrity header checking
- B. Installation of the session key in the network processor (NP)
- C. Offloading the packets directly to the content processor (CP)
- D. Data encryption and decryption
Answer: A
Explanation:
When FortiGate processes the first packets of a session, it follows a sequence of steps to determine how the traffic should be handled before establishing a session. The initial step involves:
# Access Control List (ACL) checks: Determines if the traffic should be allowed or blocked based on predefined security rules.
# Hardware Packet Engine (HPE) inspections: Ensures that packet headers are valid and comply with protocol standards.
# IP Integrity Header Checking: Verifies if the IP headers are intact and not malformed or spoofed.
Once these security inspections are completed and the session is validated, FortiGate then installs the session in hardware (if offloading is enabled) or processes it in software.
NEW QUESTION # 43
Refer to the exhibit, which shows an enterprise network connected to an internet service provider.
The administrator must configure the BGP section of FortiGate A to give internet access to the enterprise network.
Which command must the administrator use to establish a connection with the internet service provider?
- A. config router route-map
- B. config redistribute bgp
- C. config redistribute ospf
- D. config neighbor
Answer: D
Explanation:
InBGP (Border Gateway Protocol), aneighbor (peer) configurationis required to establish a connection between two BGP routers. SinceFortiGate A is connecting to the ISP (Autonomous System 10) from AS
30, the administrator must define theISP's BGP router as a neighbor.
Theconfig neighborcommand is used to:
#Define the ISP's IP address as a BGP peer
#Specify the remote AS (AS 10 in this case)
#Allow BGP route exchanges between FortiGate A and the ISP
NEW QUESTION # 44
You have configured FortiManager as a local FDS to provide FortiGate AV and IPS updates, but FortiGate devices are not receiving updates to their AV signature databases, IPS engines, or IPS signature databases.
Which two settings need to be verified for these features to function? (Choose two.)
- A. FortiManager needs to be the license validation server for FortiGate devices trying to retrieve updated AV and IPS packages.
- B. FortiGate needs to have include-default-servers disabled under config system central-management.
- C. Service access needs to be enabled on FortiManager under System Settings > Network.
- D. FortiGate needs to have the server list entry for FortiManager set to server-type update under config system central-management.
Answer: C,D
NEW QUESTION # 45
Refer to the exhibits.
The configuration of a user's Windows PC, which has a default MTU of 1500 bytes, along with FortiGate interfaces set to an MTU of1000bytes, and the results of PC1 pinging server172.16.0.254are shown.
Why is the user in Windows PC1 unable to ping server172.16.0.254and is seeing the message:Packet needs to be fragmented but DF set?
- A. FortiGate honors the do not fragment bit and the packets are dropped. The user has to adjust the ping MTU to 972 to succeed.
- B. Fragmented packets must be encrypted. To connect any application successfully, the user must install the Fortinet_CA certificate in the Microsoft Management Console.
- C. The user must trigger different traffic because path MTU discovery techniques do not recognize ICMP payloads.
- D. Option ip.flags.mf must be set to enable on FortiGate. The user has to adjust the ping MTU to 1000 to succeed.
Answer: A
Explanation:
The issue occurs because FortiGate enforces the "do not fragment" (DF) bit in the packet, and the packet size exceeds the MTU of the network path. When the Windows PC1 (with an MTU of 1500 bytes) attempts to send a 1400-byte packet, the FortiGate interface (with an MTU of 1000 bytes) needs to fragment it. However, since the DF bit is set, FortiGate drops the packet instead of fragmenting it.
To resolve this, the user should adjust the ping packet size to fit within the path MTU. In this case, reducing the packet size to972 bytes(1000 bytes MTU minus 28 bytes for the IP and ICMP headers) should allow successful transmission.
NEW QUESTION # 46
View the exhibit, which contains an entry in the session table, and then answer the question below.
Which one of the following statements is true regarding FortiGate's inspection of this session?
- A. FortiGate forwarded this session without any inspection.
- B. FortiGate applied explicit proxy-based inspection.
- C. FortiGate applied flow-based inspection.
- D. FortiGate applied proxy-based inspection.
Answer: D
NEW QUESTION # 47
Refer to the exhibit, which contains a partial routing table.
Assuming all the appropriate firewall policies are configured, which two pings will FortiGate route?
(Choose two.)
- A. Source IP address 10.73.9.10, Destination IP address 10.72.3.15.
- B. Source IP address 10.72.3.27, Destination IP address 10.1.0.52.
- C. Source IP address 10.1.0.24, Destination IP address 10.72.3.20.
- D. Source IP address 10.72.3.52, Destination IP address 10.1.0.254.
Answer: B,D
NEW QUESTION # 48
View the exhibit, which contains a hub-and-spoke VPN topology with two hubs, then answer the question below.
An administrator wants to configure ADVPN.
Which ADVPN setting needs to be enabled in the tunnel between Hub1 and Hub2 FortiGates?
- A. set auto-discovery-ipsec enabled
- B. set auto-discovery-sender enabled
- C. set auto-discovery-receiver enabled
- D. set auto-discovery-forwarder enabled
Answer: D
NEW QUESTION # 49
View the exhibit, which contains the output of a diagnose command, and then answer the question below.
Which statements are true regarding the output in the exhibit? (Choose two.)
- A. FortiGate used 209.222.147.36 as the initial server to validate its contract.
- B. FortiGate will probe 121.111.236.179 every fifteen minutes for a response.
- C. Servers with a negative TZ value are experiencing a service outage.
- D. Servers with the D flag are considered to be down.
Answer: A,B
NEW QUESTION # 50
Refer to the exhibit, which contains a TCL script configuration on FortiManager.
An administrator has configured the TCL script on FortiManager, but failed to apply any changes to the managed device after being executed.
Why did the TCL script fail to make any changes to the managed device?
- A. The TCL command run_cmd has not been created.
- B. Changes in an interface configuration can only be done by CLI script.
- C. The TCL script must start with #include <>.
- D. Incomplete commands are ignored in TCL scripts.
Answer: A
NEW QUESTION # 51
What does the command set forward-domain <domain_ID> in a transparent VDOM interface do?
- A. It configures the interface to prioritize traffic based on the domain ID, enhancing quality of service for specified VLANs.
- B. It restricts the interface to managing traffic only from the specified VLAN, effectively segregating network traffic.
- C. It assigns a unique domain ID to the interface, allowing it to operate across multiple VLANs within the same VDOM.
- D. It isolates traffic within a specific VLAN by assigning a broadcast domain to an interface based on the VLAN ID.
Answer: D
Explanation:
In atransparent mode Virtual Domain (VDOM)configuration, FortiGate operates as aLayer 2 bridgerather than performing Layer 3 routing. Theset forward-domain <domain_ID>command is used to control how traffic is forwarded between interfaces within the sametransparent VDOM.
Aforward-domainacts as abroadcast domain, meaning only interfaces with thesame forward-domain ID can exchange traffic. This setting is commonly used toseparate different VLANs or network segments within the transparent VDOM while still allowing FortiGate to apply security policies.
NEW QUESTION # 52
Refer to the exhibit, which shows a physical topology and a traffic log.
The administrator is checking on FortiAnalyzer traffic from the device with IP address 10.1.10.1, located behind the FortiGate ISFW device.
The firewall policy in on the ISFW device does not have UTM enabled and the administrator is surprised to see a log with the action Malware, as shown in the exhibit.
What are the two reasons FortiAnalyzer would display this log? (Choose two.)
- A. ISFW is not connected to FortiAnalyzer and must go through NGFW-1.
- B. The firewall policy in NGFW-1 has UTM enabled.
- C. ISFW is in a Security Fabric environment.
- D. Security rating is enabled in ISFW.
Answer: B,C
Explanation:
From the exhibit, ISFW is part of a Security Fabric environment with NGFW-1 as the Fabric Root.
In this architecture, FortiGate devices share security intelligence, including logs and detected threats.
ISFW is in a Security Fabric environment:
Security Fabric allows devices like ISFW to receive threat intelligence from NGFW-1, even if UTM is not enabled locally.
If NGFW-1 detects malware from IP 10.1.10.1 to 89.238.73.97, this information can be propagated to ISFW and FortiAnalyzer.
The firewall policy in NGFW-1 has UTM enabled:
Even though ISFW does not have UTM enabled, NGFW-1 (which sits between ISFW and the external network) does have UTM enabled and is scanning traffic. Since NGFW-1 detects malware in the session, it logs the event, which is then sent to FortiAnalyzer.
NEW QUESTION # 53
Refer to the exhibit, which shows the device and policy layers for FortiGate key operations.
How can the administrator restore a previous FortiGate configuration, which had more policies than the current one, without the layer synchronization between the device and policy layers on FortiManager?
- A. Retrieve the configuration, import system templates, and reinstall the policy package on FortiGate.
- B. Locate the configuration ID in the FortiGate revision history, click revert, install the device settings, and import policies to sync the policy package.
- C. Find the configuration file by date and time in the provisioning templates, then reinstall the policy package to apply the configuration changes.
- D. Use the global ADOM to access the previous configurations and install policies on ADOM devices to synchronize all layers.
Answer: B
NEW QUESTION # 54
How will configuring set tcp-mss-sender and set tcp-mss-receiver in a firewall policy affect the size and handling of TCP packets in the network?
- A. The maximum segment size permitted in the firewall policy determines whether TCP packets are allowed or denied.
- B. Applying commands in a firewall policy determines the largest payload a device can handle in a single TCP segment.
- C. The administrator must consider the payload size of the packet and the size of the IP header to configure a correct value in the firewall policy.
- D. The TCP packet modifies the packet size only if the size of the packet is less than the one the administrator configured in the firewall policy.
Answer: B
Explanation:
Theset tcp-mss-senderandset tcp-mss-receivercommands in afirewall policyallow an administrator to adjust theMaximum Segment Size (MSS)of TCP packets.
This setting controls thelargest payload sizethat a device can handle in a singleTCP segment, ensuring that packets do not exceed the allowed MTU (Maximum Transmission Unit) along the network path.
#set tcp-mss-senderadjusts the MSS value foroutgoing TCP traffic.
#set tcp-mss-receiveradjusts the MSS value forincoming TCP traffic.
This helps prevent issues withfragmentationandMTU mismatches, improving network performance and avoiding retransmissions.
NEW QUESTION # 55
View the following exhibit:
What two statements about this session are correct? (Choose two.)
- A. This session terminates or originates in the FortiGate device.
- B. This is a TCP session that was blocked by firewall policy ID 0.
- C. It is a TCP session in SYN_SENT state.
- D. It is a UDP session that has seen traffic flow both ways.
Answer: A
NEW QUESTION # 56
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