Free Practice Questions for Fortinet FCSS_NST_SE-7.6 Exam

The exhibit for question 4 shows a policy route table entry, and key fields are as follows:

internet service(1) : Fortinet-FortiGuard(1245324,0.0.0.0,0.0.0.0)

According to the Fortinet official documentation, when a policy route is based on Internet Service Database (ISDB) entries, the route entry will specifically mention “internet service,” showing the service being referenced (in this example, Fortinet-FortiGuard). This is fundamentally different from a regular policy route, which is defined by source, destination, and service wildcards without referencing an ISDB signature. A regular policy route ' s output would not contain the line “internet service.”

Policy routes that use ISDB allow FortiGate to steer traffic for specific well-known services (like FortiGuard, Google, Microsoft) based on traffic pattern recognition, even if the destination IP is dynamic. The matching and route selection follow the ISDB tag and can coexist with static or regular policy routes.

Thus, this entry is correctly and uniquely an ISDB route, as explained in the FortiOS policy routing documentation and ISDB configuration references.

The correct answer is B .

The study guide explicitly states: “IKE version 2 does not interoperate with IKE version 1, but they share enough of the header format that both versions can unambiguously operate over the same UDP port.”

That directly proves B .

Why the other options are wrong:

A is wrong because the study guide shows authentication methods as Asymmetric for IKEv2 and Symmetric for IKEv1

C is wrong because the study guide does not say they use the same TCP port; instead, it specifically says they can operate over the same UDP port

D is wrong because the study guide states: “IKEv2 does not use the concept of phase 1 or phase 2” , even though FortiOS CLI/GUI still uses those terms for configuration purposes

The correct answer is A .

The study guide explains the IKEv2 exchange order very clearly:

“The initial exchanges are: IKE_SA_INIT and IKE_AUTH.”

“Create_Child_SA exchange: Creates a new child SA or rekeys an existing child SA.”

It also states:

“After successful IKE_SA_INIT and IKE_AUTH exchanges, the CHILD_SA exchange takes place. In this exchange, the peers negotiate the CHILD_SA and the traffic selectors — traffic selector responder (TSr) and traffic selector initiator (TSi).”

That is why A is correct: if the tunnel was initially brought up successfully , then the initial exchanges already succeeded. A later problem during CREATE_CHILD_SA , especially with traffic selectors/phase 2 selectors , can cause the tunnel to fail during rekey or child-SA renegotiation.

Why the other options are wrong:

B is wrong because proposal mismatch for the IKE SA is handled during IKE_SA_INIT , not after the tunnel is already up. The study guide says IKE_SA_INIT negotiates the security settings to protect the IKE traffic

C is wrong because a pre-shared key mismatch is part of authentication and would prevent successful initial establishment during IKE_AUTH . The study guide shows that after IKE_AUTH, “authentication succeeded” and “established IKE SA” when it works

D is wrong because a Diffie-Hellman mismatch belongs to IKE_SA_INIT , which happens before the tunnel comes up. The study guide also states: “By IKEv2 design, no Diffie-Hellman public key is exchanged during an IKE_AUTH exchange.”

So the verified answer is: A .

The correct answer is A .

The study guide explicitly explains the diagnose debug rating table and says that for each server IP, the output shows “The round trip delay”

That means the RTT value represents the time it takes for FortiGate to send a request and receive the reply from that FortiGuard server.

The FortiOS administration guide also confirms this by stating:

“Each server is probed for Round Trip Time (RTT) every two minutes.”

Why the other options are wrong:

B is wrong because packet loss is shown separately by Curr Lost and Total Lost , while RTT is the round-trip delay

C is wrong because license-validation behavior is indicated by flags such as I = Initial , not by the RTT value itself

D is wrong because the documents do not say RTT starts at a fixed value of 10; it is measured dynamically as round-trip delay

So the verified answer is: A .

We must analyze the flags (*, > , S, O, B) and Administrative Distances (AD) shown in the get router info routing-table database exhibit to determine the correct statements.

Analysis for Option A (The BGP route to 10.0.4.0/24 is not in the forwarding information base):

True. Look at the entry for 10.0.4.0/24.

There is an OSPF route: O * > 10.0.4.0/24 [110/2]. The * indicates it is in the FIB, and > indicates it is the selected route.

There is a BGP route: B 10.0.4.0/24 [200/10]. This line lacks the * flag.

Reason: The OSPF route has an Administrative Distance of 110. The BGP route (iBGP) has an AD of 200. Since 110 is lower than 200, OSPF wins, and the BGP route is not installed in the Forwarding Information Base (FIB).

Analysis for Option B (The default static route through 10.200.1.254 is in the forwarding information base):

True. Look at the 0.0.0.0/0 entries.

The first entry is S * > 0.0.0.0/0 [10/0] via 10.200.1.254.

The * flag confirms this specific route is installed in the FIB.

The second static route (via 10.200.2.254) has a higher distance ([20/0]) and no * flag, so it is inactive.

Why C is False: ECMP (Equal Cost Multi-Path) requires routes to have the same cost/priority. Here, one static route has AD 10 and the other has AD 20. They are not equal, so ECMP is not performed.

Why D is False: The routing table database shows active routes, not the raw Link State Advertisement (LSA) database. You cannot determine the number of LSAs received solely from this output.

The correct answers are B and D .

The study guide explains that in the SP Login Dump section, FortiGate is acting as the service provider (SP) , and that you should read these fields:

“The IdP SSO URL, from the setting idp-single-sign-on-url in the FortiGate configuration”

“The SP SSO URL, from the setting single-sign-on-url in the FortiGate configuration”

“The IdP Entity ID, from the setting id-entity-id in the FortiGate configuration”

“The SP Entity ID, from the setting entity-id setting in the FortiGate configuration”

In the exhibit:

Destination= " https://10.1.10.2/saml-idp/nst/login/ " → this is the IdP SSO URL

< lasso:RemoteProviderID > http://10.1.10.2/samlidp/nst/metadata/ < /lasso:RemoteProviderID > → this is the IdP Entity ID

AssertionConsumerServiceURL= " https://10.1.10.254:1003/remote/saml/login/ " → this is the SP SSO URL

< saml:Issuer > https://10.1.10.254:1003/remote/saml/metadata/ < /saml:Issuer > → this is the SP Entity ID

The same study-guide example shows this exact mapping pattern, where:

Destination points to the IdP

AssertionConsumerServiceURL and Issuer point to the SP

Therefore:

10.1.10.2 is the IdP → D

10.1.10.254 is the SP → B

So the verified answers are: B, D .