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| Section | Objectives |
|---|---|
| Topic 1: Enterprise Firewall | - High availability - Authentication and identity - VPN technologies - Centralized management and analytics - Troubleshooting - Routing and advanced networking - Security Fabric integration - Advanced firewall deployment |
| Topic 2: SD-WAN | - Application steering - Performance SLA - Deployment and troubleshooting - SD-WAN routing - Overlay VPN - SD-WAN architecture |
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NEW QUESTION # 165
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: B
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 # 166
Refer to the exhibit.
The partial output of FortiOS kernel slabs is shown. Which statement about total slab size is true?
Answer: D
Explanation:
The correct answer is B.
The study guide explicitly states that slabs are used by the kernel: "The kernel memory slabs are collections of objects with a common purpose. The kernel uses them to store information in memory." It also gives the exact calculation method: "Total slab size = available objects x object size" and explains that in the diagnose hardware sysinfo slab output, the columns are active objects, available objects, and object size From the exhibit:
tcp_session 3 5 1500 ...
available objects = 5
object size = 1500
So:
Total slab size = 5 × 1500 = 7500
That matches option B.
Why the other options are wrong:
A: ip_session 10 10 1408 ... gives 10 × 1408 = 14080, but slabs are associated with the kernel, not user space C: ip6_session 5 0 1472 ... gives 0 × 1472 = 0, not 1472 D: UDPv6 15 10 1408 ... gives 10 × 1408 = 14080, but again slabs are associated with the kernel, not user space So the verified answer is B.
NEW QUESTION # 167
Refer to the exhibits.
An administrator is attempting to advertise the network configured on port3. However, FGT-A is not receiving the prefix.
Which two actions can the administrator take to fix this problem? (Choose two.)
Answer: C,D
NEW QUESTION # 168
Refer to the exhibit.
FortiGate is showing continuous high CPU usage During a maintenance window, the CLI command diagnose sys top displays the output shown in the exhibit. The CLI command diagnose twat application ipsmonitor 5 was run. but the CPU usage by daemon ipsengine did not drop Which immediate action can you take to reduce the CPU usage effectively?
Answer: A
Explanation:
To solve this high CPU usage scenario involving the ipsengine, we must understand the specific functions of the diagnose test application ipsmonitor commands shown in the troubleshooting steps.
Analyze the Situation:
Exhibit: The diagnose sys top output shows the ipsengine process is in a run state (R) consuming 99% CPU.
Previous Action: The administrator already ran diagnose test application ipsmonitor 5.
Result: The CPU usage did not drop.
Understand the Commands:
diagnose test application ipsmonitor 5: This command toggles IPS Bypass Mode. When enabled, the IPS engine lets traffic pass through without inspection.
Implication: If the CPU was high due to traffic volume, enabling bypass would drop the CPU load immediately.
Failure: Since the CPU remained at 99% after bypass, the ipsengine process is likely frozen, stuck, or in an internal infinite loop unrelated to the current traffic flow. The process itself is the problem, not the traffic volume.
Evaluate the Solution (Option B):
diagnose test application ipsmonitor 2: This command toggles the IPS engine ' s Enable/Disable status.
Because the engine is stuck (bypass failed to relieve pressure), the " Immediate action " required is to stop or restart the process entirely.
Running option 2 effectively disables/kills the stuck IPS engine instance, which will immediately drop the CPU usage to near zero. (It can then be toggled again to restart it).
Why other options are incorrect:
A (Reduce signatures): This is a tuning measure for normal operation, not an immediate fix for a stuck process at 99% CPU.
C (Disable IPS on policies): This is a configuration change that takes time and requires a commit; it is not the most immediate diagnostic tool available.
D (Bypass all IPS engines): This describes the action of command 5 (Bypass), which the prompt explicitly states was already performed and failed.
Reference:
FortiGate Security 7.6 Study Guide (IPS & Diagnostics): " Troubleshooting IPS high CPU: 1. Check top. 2.
Try bypass (ipsmonitor 5). 3. If CPU persists, restart the engine (ipsmonitor 99 or 2). "
NEW QUESTION # 169
Refer to the exhibit.
An administrator has configured a firewall policy to use proxy-based inspection mode. What could explain the messages observed in the debug flow output?
Answer: B
Explanation:
The correct answer is A.
The debug flow shows:
traffic is going to TCP port 211
FortiGate logs run helper-ftp(dir=original)
The study guide explains exactly what that message means:
"In this example, the run helper-ftp message indicates that the FTP session helper is being used." Under normal proxy-based inspection, protocol handling is controlled by Protocol Options. The FortiOS administration guide states:
"Protocol port mapping only works with proxy-based inspection." and "The ports can be modified to inspect any port with flowing traffic." So if the policy is configured for proxy-based inspection but the debug still shows the FTP session helper on port 211, the most likely explanation is that the FTP protocol mapping in Protocol Options is broad enough to match unexpectedly, such as being mapped to Any. That would cause FortiGate to identify the traffic as FTP and invoke the helper.
Why the other options are wrong:
B is wrong because SSL deep inspection is unrelated to this debug. The traffic shown is plain TCP/211, and the key message is about the FTP helper, not SSL decryption.
C is wrong because if FTP had not been mapped to port 211, FortiGate would be less likely to treat this traffic as FTP. The observed run helper-ftp indicates FTP handling is being triggered.
D is wrong because low-memory conserve behavior would typically cause inspection bypass or blocking behavior, not specifically the run helper-ftp message. The study guide's helper example ties this message to session-helper use, not memory shortage.
So the verified answer is: A.
NEW QUESTION # 170
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