The correct answers are A and B .
The exhibit shows:
* override: disable
* both members are currently in-sync
* only port7 appears under HBDEV stats , so it is the active heartbeat interface
* the cluster is in HA A-P mode
Why A is correct:
With override disabled , after a failover the new primary keeps that role when the old primary comes back.
The FortiOS administration guide states:
"When the primary FortiGate rejoins the cluster the secondary FortiGate continues to operate as the primary FortiGate." So if FGVM...649 reboots and FGVM...650 becomes primary, FGVM...650 will remain primary after FGVM...649 rejoins.
Why B is correct:
The study guide states:
"When FortiGate devices configured in an HA cluster lose communication with each other on the heartbeat interface, each FortiGate assumes the role of the primary device." The exhibit shows only port7 as the heartbeat device in HBDEV stats So if port7 is disconnected and heartbeat communication is lost, the cluster can enter a split-brain condition, where both units believe they are primary. The FortiOS administration guide confirms the same behavior: loss of heartbeat communication causes each member to think it is the primary Why the other options are wrong:
* C is wrong because configuration synchronization status is specifically used to detect whether secondary members remain synchronized with the primary. If members are no longer synchronized, the status changes from in-sync to out-of-sync
* D is wrong because the study guide explains that during a configuration change, checksums may differ briefly while changes are copied, but it does not describe this as the secondary initiating a
"synchronization reset"
So the verified answers are: A, B .

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 .

The correct answers are A and B .
For UDP , the study guide states this directly: "For UDP, the session state can have only two values: 00 when traffic is only one way, and 01 when traffic is two ways. For ICMP, the protocol state is always
00."
That makes B correct and D incorrect.
For TCP , the study guide explains that the protocol state is a two-digit number, where the first digit is the server-side state and the second digit is the client-side state . It also states that the first digit is 0 when the session is not subject to any inspection , and the TCP state table shows that value 1 = ESTABLISHED So, for a normal non-proxied/non-inspected TCP session, proto_state=01 means the TCP session is in the ESTABLISHED state. An established TCP session means the three-way handshake has completed, which requires traffic in both directions. That is why A is correct.
The study guide also says: "proto_state=11 means that the TCP three-way handshake for both server- side and client-side is completed (ESTABLISHED)." This confirms that TCP state value 1 represents an established state.
Why C is not selected: the study guide defines value 5 as TIME_WAIT and says: "When a session is closed by both the sender and receiver, FortiGate keeps that session in the session table for a few seconds...
This is the state value 5."
So proto_state=05 represents a closing/closed TCP session in TIME_WAIT , not the normal bidirectional state the question is testing.
Therefore, the verified answers are A and B .

The correct answers are C and D .
The study guide states: "SSL certificate inspection relies on extracting the FQDN of the URL from either: TLS extension server name indication (SNI), SSL certificate common name (CN)." It also says:
"When using SSL certificate inspection, FortiGate is not decrypting the traffic. It is only inspecting the server digital certificates and the SNI field, which are interchanged before the encryption." This proves the second part of the answer:
* under SSL certificate inspection , FortiGate does not decrypt the traffic
* therefore, if the traffic is allowed , it still passes without decryption That makes D correct.
For the SNI mismatch behavior, the FortiOS administration guide describes the default Server certificate SNI check behavior as:
"Enable: If it is mismatched use the CN in the server certificate for URL" So if the SNI does not match the CN or any SAN, FortiGate falls back to using the CN from the Subject field for URL handling under the default setting. That makes C correct.
Why the other options are wrong:
* A is wrong because with the default SNI-check behavior, when the SNI mismatches the certificate identity, FortiGate does not continue using the mismatched SNI . Instead, it uses the CN in the server certificate for the URL .
* B is not the best answer in this single pair selection . While certificate inspection does not decrypt traffic, the key default behavior the documents explicitly highlight for this mismatch case is:
* use the CN when SNI mismatches , and
* certificate inspection does not decrypt allowed HTTPS traffic .
So the verified answers are: C, D .