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| Section | Objectives |
|---|---|
| Network Security Fundamentals and FortiGate Architecture | - FortiGate system architecture and components - Security fabric concepts and integration |
| VPN and Secure Connectivity | - IPsec VPN configuration and troubleshooting - SSL VPN deployment |
| Firewall Policies and Traffic Management | - Policy configuration and rule processing - NAT and traffic inspection flow |
| Threat Protection and Security Services | - IPS, antivirus, and web filtering - Application control and security profiles |
| Troubleshooting and Diagnostics | - Traffic debugging tools and logs - Performance and connectivity troubleshooting |
| Routing, Switching, and High Availability | - HA cluster configuration and failover - Static and dynamic routing fundamentals |
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NEW QUESTION # 65
Refer to the exhibit.
The partial output of FortiOS kernel slabs is shown. Which statement about total slab size is true?
Answer: A
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 # 66
Refer to the exhibit, which shows a truncated output of a real-time LDAP debug.
What two conclusions can you draw from the output? (Choose two.)
Answer: B,D
Explanation:
The exhibit shows these key lines:
handle_req-Rcvd auth req ... for jsmith in Lab
start_search_dn-base:'DC=TAC,DC=ottawa,DC=fortinet,DC=com' filter:sAMAccountName=jsmith get_all_dn-Found DN 1:CN=John Smith,CN=Users,DC=TAC,DC=ottawa,DC=fortinet,DC=com The study guide explicitly shows the same LDAP real-time debug pattern and says the request line includes the LDAP server object name:
handle_req-Rcvd auth req ... for jsmith in Lab ...
That supports A: Lab is the configured LDAP server name being used for this authentication request.
For the LDAP flow stage, the study guide states:
"An fnbamd_ldap_build_dn_search_req-base message indicates that FortiGate is performing step two: searching for the user in the LDAP tree." It also says that if the LDAP server finds the user, the output shows the user's full DN.
That matches the exhibit's start_search_dn-base ... filter:sAMAccountName=jsmith and Found DN ... CN=John Smith... lines, so D is correct.
Why the other options are wrong:
B is wrong because the exhibit shows FortiOS has found the user DN CN=John Smith,..., but that does not mean the user is already authenticating with that DN in this step. The study guide says this DN is discovered in step 2, and only in step 3 does FortiGate bind using the user DN.
C is wrong because the exhibit is showing step 2 (Search Request), not step 3 (Bind Request). The study guide separates these steps clearly and shows step 3 with fnbamd_ldap_build_userbind_req-Trying DN ... and __ldap_build_bind_req-Binding to 'CN=John Smith,...'
NEW QUESTION # 67
Refer to the exhibit.
If the default settings are m place, what can you conclude about the conserve mode shown in the exhibit?
Answer: C
Explanation:
To determine the behavior, we must analyze the memory thresholds and the current status shown in the exhibit:
* Analyze the Thresholds (The Three States):
* Green (Exit): 82% (Memory usage is safe).
* Red (Enter Conserve Mode): 88% (Memory usage is high; action is required).
* Extreme (Kernel Conserve Mode): 95% (Memory is critical; drastic action is required).
* Determine the Current State:
* Current Memory Used: 89%.
* Since 89% is greater than the Red threshold (88%) but lower than the Extreme threshold (95%), the FortiGate is in Red Conserve Mode (User-space conserve mode), not Extreme mode.
* Evaluate the Behavior in "Red" Mode:
* In Red Conserve Mode, the FortiGate's primary goal is to prevent memory exhaustion while still processing traffic if possible.
* Proxy-based inspection (handled by the WAD process) is memory-intensive because it buffers content. To save memory, the system stops accepting new sessions that require proxy-based inspection.
* Flow-based inspection (handled by the IPS engine) streams data and consumes significantly less memory. Therefore, in Red mode, the system typically continues to allow and inspect flow-based sessions.
* Option A correctly describes this split behavior: allowing flow-based (lighter) but blocking proxy-based (heavier).
* Why other options are incorrect:
* B: If memory increases another 6% (89% + 6% = 95%), the device hits the Extreme threshold.
At 95%, the kernel begins dropping all new sessions to prevent a system crash. Thus, it will not continue to allow sessions.
* C: This describes "Fail-Open" behavior (passing traffic without inspection). While configurable (set av-failopen pass), the default is usually "Fail-Close" (blocking). More importantly, the distinction between flow and proxy availability is the key architectural feature of Red mode.
* D: Blocking all new sessions regardless of type is the behavior of Extreme Conserve Mode (95%). Since the device is only at 89%, this drastic measure is not yet active.
Reference:
FortiGate Security 7.6 Study Guide (Diagnostics & Resource Usage): "When memory usage exceeds the red threshold... the FortiGate enters conserve mode. New sessions requiring proxy-based inspection may be dropped... When the extreme threshold is reached, all new sessions are dropped."
NEW QUESTION # 68
The local OSPF router is unable to establish adjacency with a peer.
Which two things should the administrator do to troubleshoot the issue? (Choose two.)
Answer: C,D
Explanation:
The correct answers are A and B.
The Network Security Support Engineer 7.6 Study Guide states under OSPF Troubleshooting:
"Follow these steps to troubleshoot an OSPF problem between two peers:
Check that the local router can reach the remote peer. IP addresses must be in the same subnet and have the same subnet mask.
Ensure that IP protocol 89 is not blocked.
Hello and dead intervals must match.
The OSPF router ID for each peer must be unique. Duplicate router IDs are not allowed.
Do the MTUs match?
If authentication is enabled, the type and password must match on both sides."** The same page also summarizes the troubleshooting tips as:
"Do peers have an IP address within the same subnet?"
"Is IP protocol 89 blocked?"
This directly confirms:
A is correct
B is correct
Why the other options are wrong:
C is wrong because TCP port 179 is used by BGP, not OSPF. OSPF uses IP protocol 89, as the study guide explicitly notes D is wrong because the study guide's OSPF adjacency troubleshooting checklist does not require an active static route to the peer. OSPF neighbors form adjacency on directly reachable networks, and the guide instead focuses on same subnet, protocol 89, intervals, router ID, MTU, and authentication matching So the verified answers are: A, B.
NEW QUESTION # 69
Refer to the exhibit, which a network topology and a partial routing table.
FortiGate has already been configured with a firewall policy that allows all ICMP traffic to flow from port1 to port3.
Which changes must the administrator perform to ensure the server at 10.4.0.1/24 receives the echo reply from the laptop at 10.1.0.1/24?
Answer: D
NEW QUESTION # 70
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