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| Section | Objectives |
|---|---|
| Topic 1: SD-WAN | - Deployment and troubleshooting - Performance SLA - Overlay VPN - SD-WAN architecture - SD-WAN routing - Application steering |
| Topic 2: Enterprise Firewall | - Centralized management and analytics - Authentication and identity - Troubleshooting - High availability - Routing and advanced networking - Advanced firewall deployment - VPN technologies - Security Fabric integration |
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NEW QUESTION # 81
Exhibit.
Refer to the exhibit, which contains partial output from an IKE real-time debug.
Which two statements about this debug output are correct? (Choose two.)
Answer: B,D
Explanation:
From the exhibit, you can observe that the debug output captures an IKEv1 negotiation in aggressive mode.
Let ' s break down the supporting details in line with official Fortinet IPsec VPN troubleshooting resources and debug guides:
For Option B:
The very first line of the debug output shows:
comes 10.0.0.2:500- > 10.0.0.1:500, ifindex=7.
This indicates the traffic direction-from the remote IP (10.0.0.2) with port 500 to the local IP (10.0.0.1) with port 500. According to Fortinet ' s documentation, the right side of the arrow always represents the local FortiGate gateway. Thus, 10.0.0.1 is the local gateway IP address.
For Option D:
You see the statement:
negotiation result " remote "
and
received peer identifier FQDNCE88525E7DE7F00D6C2D3C00000000
Official debug documentation describes that the " peer identifier " or peer ID sent by the initiator is displayed here. In the context of IKE/IPsec negotiation, this value is used as the IPsec peer ID for authentication and identification purposes. The initiator is providing " remote " as the peer ID for its connection.
Why Not A or C:
Perfect Forward Secrecy (PFS): The debug does not show any DH group negotiation in phase 2 (no reference to group2, group5, etc., for phase 2), so you cannot deduce the presence of PFS solely from this output.
Phase 2 negotiation: The log focuses on IKE (phase 1) negotiation and establishment; there's no reference to ESP protocol, Quick Mode, or other identifiers that would show phase 2 SA negotiation and establishment.
This interpretation aligns with the explanation in the FortiOS 7.6.4 Administration Guide ' s VPN section and the official debug command output samples published in Fortinet's documentation. It demonstrates how to distinguish between local and remote addresses and how to identify the use of peer IDs.
References:
FortiOS 7.6.4 Administration Guide: IPsec VPN and Debugging VPNs
Technical Support Resources on interpreting IKE debug output and peer ID roles
NEW QUESTION # 82
Refer to the exhibits,
which show the configuration on FortiGate and partial session information for internet traffic from a user on the internal network. If the priority on route ID 2 were changed from 10 to 0, what would happen to traffic matching that user session? (Choose one answer)
Answer: D
Explanation:
The correct answer is A. This behavior is dictated by the configuration command set snat-route-change enable shown in Exhibit 1 under config system global.
Routing Change: By changing the priority of route ID 2 from 10 to 0, it becomes lower than route ID 1 (priority 5). In FortiOS, a lower priority value indicates a more preferred route. Consequently, the active route for the destination changes from port1 to port2.
SNAT Implication: The existing session (shown in Exhibit 2) is using Source NAT (SNAT) with the IP address associated with port1 (10.200.1.1). If the traffic were simply switched to port2, the source IP would be incorrect for that interface and the return traffic would likely fail or be dropped.
snat-route-change enable: This specific setting instructs the FortiGate on how to handle established SNAT sessions when a routing change occurs that alters the preferred outgoing interface. When enabled, if a route change forces an SNAT session to a new interface, FortiGate flushes (deletes) the session from the session table. This is necessary because a live TCP session cannot survive a change in its source IP address. The client must initiate a new session, which will then be created using the new correct route (port2) and the corresponding new SNAT IP.
If this setting were disabled, the session would likely remain " sticky " to the original interface (port1) until it closed, provided the route still existed. However, the explicit configuration forces the deletion.
NEW QUESTION # 83
Refer to the exhibit.
Based on the exhibit, what is the first message with which Spoke 1 replies to the hub, instructing it to bring up the dynamic tunnel when a client generates traffic destined for Spoke 2? (Choose one answer.)
Answer: A
Explanation:
The ADVPN shortcut negotiation begins after traffic from Spoke 1 to Spoke 2 initially travels through the hub. When the hub detects that both spokes can establish a more direct connection, the hub-not Spoke 1- sends the first control message: a shortcut offer to Spoke 1.
The SD-WAN 7.6 Enterprise Administrator Study Guide then states: "Spoke 1 acknowledges the shortcut offer by sending a shortcut query to the hub." Therefore, the first message that Spoke 1 sends in response is the shortcut query, making option A correct.
The hub subsequently forwards that query to Spoke 2. Spoke 2 responds with a shortcut reply, which the hub forwards back to Spoke 1. After Spoke 1 receives the reply containing the necessary peer information, Spoke
1 and Spoke 2 begin IKE negotiation and establish the dynamic spoke-to-spoke shortcut tunnel.
Consequently, the shortcut reply occurs later and originates from Spoke 2, while the offer originates from the hub. "Shortcut forward" describes the hub's forwarding action rather than Spoke 1's first response. This behavior is part of Fortinet's ADVPN shortcut architecture.
NEW QUESTION # 84
Refer to the exhibit.
Partial output of the get vpn ipsec tunnel details command is shown. Based on the output, which two statements are correct? (Choose two.)
Answer: A,C
Explanation:
The correct answers are C and D.
The study guide's get vpn ipsec tunnel details example shows:
replay: enabled
inbound and outbound sections with separate SPIs
NPU acceleration: encryption(outbound) decryption(inbound)and it labels these as "Phase 2 SAs for each direction" and "Hardware acceleration" This directly proves D. Anti-replay is enabled, because the output explicitly says replay: enabled For the NPU status, the study guide explains the exact npu_flag meanings:
npu_flag=00 = both IPsec SAs loaded to the kernel
npu_flag=01 = outbound IPsec SA copied to NPU
npu_flag=02 = inbound IPsec SA copied to NPU
npu_flag=03 = both outbound and inbound IPsec SAs copied to NPU
Because the exhibit shows hardware acceleration in both directions - encryption(outbound) and decryption (inbound) - the matching npu_flag is 03, not 02. That makes C correct and A incorrect.
Why B is wrong:
The same study guide output labels the tunnel as having Phase 2 SAs for each direction, so different inbound and outbound SPIs are normal for the two SAs. Also, the FortiOS administration guide explains that auto- negotiate controls whether phase 2 SA negotiation is initiated automatically, not whether inbound and outbound SPIs are different: "By default the phase 2 security association (SA) is not negotiated until a peer attempts to send data... Auto-negotiate initiates the phase 2 SA negotiation automatically..." So the verified answers are: C, D.
NEW QUESTION # 85
Refer to the exhibit, which shows partial outputs from two routing debug commands.
Which change must an administrator make on FortiGate to route web traffic from internal users to the internet, using ECMP?
Answer: A
Explanation:
The 7.6 study guide explains the route selection order:
"Route Selection Process
Most specific route
Lowest distance
Lowest metric (dynamic routes)
Lowest priority (static routes)
ECMP (static, BGP, and OSPF routes)"**
It then states:
"If there are multiple routes with the same netmask, distance, metric, and priority, FortiGate shares the traffic among all of them. This is called equal-cost multi-path (ECMP)." The FortiOS administration guide confirms the ECMP prerequisite:
"Routes must have the same destination and costs. In the case of static routes costs include distance and priority." In the exhibit, the kernel/FIB output shows the two default routes as:
gwy=100.64.1.254 dev=3 (port1) prio=0
gwy=100.64.2.254 dev=6 (port2) prio=10
So although both are default routes, their priorities are different. Since FortiGate uses the FIB/kernel for forwarding traffic, ECMP will not happen until the static-route priorities are the same. The study guide also notes that the FIB is the table used to perform standard routing Therefore, to make the two default routes eligible for ECMP, the administrator must make the priorities equal.
Since port2 is already 10, the needed change is to set the port1 default route priority to 10.
Why the other options are wrong:
A is wrong because snat-route-change affects how existing SNAT sessions react to routing changes, not whether static routes qualify for ECMP B is wrong because changing port2 to priority 1 still would not match port1 at 0, so the routes still would not have equal cost for ECMP C is wrong because preserve-session-route affects existing-session route persistence after routing changes, not ECMP qualification
NEW QUESTION # 86
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