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| Section | Objectives |
|---|---|
| Topic 1: SD-WAN | - Overlay VPN - Performance SLA - SD-WAN routing - SD-WAN architecture - Deployment and troubleshooting - Application steering |
| Topic 2: Enterprise Firewall | - Centralized management and analytics - High availability - Advanced firewall deployment - Routing and advanced networking - Authentication and identity - Security Fabric integration - Troubleshooting - VPN technologies |
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問題 #78
Refer to the exhibit, which shows a partial output from the get router info routing-table database command.
The administrator wants to configure a default static route for port3 and assign a distance of 50 and a priority of 0.
What will happen to the port1 and port2 default static routes after the port3 default static route is created?
答案:D
問題 #79
Exhibit.
Refer to the exhibit, which shows the output of a diagnose command.
What can you conclude about the debug output in this scenario?
答案:B
解題說明:
The exhibit displays the output from the diagnose debug rating command on a FortiGate device. This command is used to display information about FortiGuard Web Filtering or other security-related queries performed by FortiGate to FortiGuard servers. Official Fortinet documentation outlines the meaning of each field in the server list. The FortiGate maintains a list of available FortiGuard servers, selecting the optimal server based on factors such as weight, round-trip time (RTT), and regional settings.
The very first entry in the server list after " Server List " is the server FortiGate initially uses, prioritized by factors such as proximity and RTT. Here, 64.26.151.37 is listed first, and the FortiGuard-requests value confirms that this server handled the highest number of requests.
The IPs, weights, and lost/failed counters are monitored for server performance and selection over time.
FortiGate ' s default operational logic is to try the first entry for contract validation and use the next in the list if the first is unavailable or has high latency or packet loss.
There is no direct correlation between the Weight and the number of FortiGuard-requests. The servers with higher or lower weights may still handle different request volumes based on availability and performance.
The TZ (time zone) value ' s sign (positive or negative) does not affect server preference; it is informational, showing the server ' s location relative to UTC, not a rating metric.
DNS query results for FortiGuard servers are not shown here, and the provided servers are not returned in DNS query order.
This command and interpretation are detailed in the FortiOS Administration Guide's section describing FortiGuard server selection and contract validation processes.
References:
FortiOS Administration Guide: FortiGuard Service Connectivity and Debugging Official Technical Notes on diagnose debug rating output structure
問題 #80
Refer to the exhibit.
Two hub-and-spoke groups are connected through redundant site-to-site IPsec VPNs between Hub 1 and Hub
2.
Which two configuration settings are required for Spoke A1 to establish an auto-discovery VPN (ADVPN) shortcut with Spoke B2? (Choose two.)
答案:A,D
解題說明:
Comprehensive and Detailed 100 to 150 words of Explanation From Secure Networking Architect Study Guides topics:
For inter-region ADVPN shortcuts, each IPsec interface must be configured according to its ADVPN role.
The Enterprise Firewall 7.6 Administrator Study Guide states that when a spoke connects to a hub, auto- discovery-receiver must be enabled so that the spoke can receive shortcut messages and initiate negotiation of a dynamically created shortcut tunnel. Therefore, A is correct.
When hubs are interconnected through IPsec, the hub-to-hub tunnel must use auto-discovery-forwarder enable. This permits shortcut messages to cross the overlay networks and reach spokes in another region, making B correct. auto-discovery-sender belongs on the hub-facing ADVPN interface used to send shortcut offers to spokes, not on the spoke. Likewise, the hub is not configured as the receiver on its spoke-facing tunnels.
問題 #81
Refer to the exhibit.
A network topology and a partial routing table are shown.
FortiGate has already been configured with a firewall policy that allows all ICMP traffic to flow from port1 to port3.
Which two changes can the administrator perform to ensure the server at 10.4.0.1/24 receives the ICMP echo reply from the laptop at 10.1.0.1/24? (Choose two.)
答案:B,D
解題說明:
The correct answers are A and C .
The study guide describes this exact asymmetric ICMP scenario. It states:
"The server sends an echo request to the PC through port2 of the local router, effectively bypassing FortiGate. When it receives the echo request, the PC responds with an echo reply through its default gateway, 10.1.0.2, which is port1 on FortiGate. Because there is no existing session, the echo reply is dropped. All subsequent echo replies are blocked." That means the current problem exists because:
* the ICMP request bypasses FortiGate
* the ICMP reply goes through FortiGate
* FortiGate has no matching session , so it drops the reply
The study guide then shows the exact corrective option:
"Allowing asymmetric routing:"
config system settings
set asymroute enable
end
It further explains:
"After the packet passes through the FortiGate CPU, FortiGate forwards the packet using the FIB, even though there are no session matches. FortiGate forwards all subsequent echo replies using the FIB." So A is correct.
The other valid fix is to make the traffic symmetric by changing the laptop's default gateway so the reply no longer goes through FortiGate. In the exhibit, the alternate gateway is 10.1.0.254 , which is the local router on the same subnet. If the laptop uses 10.1.0.254 instead of 10.1.0.2, the ICMP echo reply follows the same bypass path as the echo request, so the server receives it without involving FortiGate session validation. This makes C correct.
Why the other options are wrong:
* B is wrong because this is not an RPF problem. The study guide explains RPF as a reverse path lookup used to validate whether a packet arrived on a legitimate interface, mainly for spoofing protection. The issue in this scenario is a missing session due to asymmetric routing , not a strict-versus-feasible RPF failure
* D is wrong because FortiGate already has the specific route 10.4.0.0/24 through port3 in the routing table shown in the exhibit, so adding a default static route to port3 is unnecessary and not the reason the echo reply is being dropped So the verified answers are: A, C .
問題 #82
Refer to the exhibit.
The output of the command diagnose vpn tunnel list is shown.
Reviewing the debug command, what is the current status of the traffic flowing through the tunnel?
答案:B
解題說明:
The correct answer is D. The inbound IPsec SA was copied to the NPU.
The exhibit shows:
npu_flag=02
dec_npuid=1
enc_npuid=0
The study guide gives the exact meaning of the npu_flag field:
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
It also explains: "If the first IPsec packet is inbound and can be offloaded, the inbound SA is copied to the NPU and the npu_flag changes to 02. After both SAs are copied to the NPU, the npu_flag changes to 03." So with npu_flag=02, only the inbound SA has been copied to the NPU. That makes D correct.
Why the other options are wrong:
A is wrong because outbound-only offload would be npu_flag=01, not 02
C is wrong because both directions offloaded would be npu_flag=03, not 02 B is wrong because dec_npuid=1 identifies the NPU ID used for decryption, but it does not state that the processor is specifically NP6. The study guide only maps the offload state through the npu_flag values in this context, not the NPU model from this field alone So the verified answer is: D.
問題 #83
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