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| Section | Objectives |
|---|---|
| SD-WAN | - Application steering - Deployment and troubleshooting - SD-WAN routing - Performance SLA - SD-WAN architecture - Overlay VPN |
| Enterprise Firewall | - High availability - Authentication and identity - Advanced firewall deployment - Centralized management and analytics - Security Fabric integration - Routing and advanced networking - VPN technologies - Troubleshooting |
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NEW QUESTION # 151
Refer to the exhibit.
The exhibit shows the output of a session. Which two statements are correct? (Choose two.)
Answer: A,B
Explanation:
The correct answers are C and D.
For D, the session output shows proto=6, which means TCP, and proto_state=01. The study guide explains that for TCP sessions, "the first number (from left to right) is related to the server-side state and is 0 when the session is not subject to any inspection (flow or proxy). ... The second digit is the client-side state." It also shows that value 1 = ESTABLISHED So proto_state=01 means:
first digit 0 = no inspection
second digit 1 = ESTABLISHED
That confirms the TCP session has been successfully established.
For C, the study guide section "Session for an Authenticated User" states: "Any session for traffic coming from an authenticated user contains the authed flag. Additionally, the username is added to the session information." In the exhibit, the session contains user=User1 and an authentication state flag (authd), which indicates the session is associated with an authenticated user.
Why the other options are wrong:
A is wrong because the session did match a firewall policy. The study guide says the session output includes
"The ID of the matching policy" In the exhibit, the session shows policy_id=1, so a firewall policy was matched.
B is wrong because the study guide explains the gwy field as:
first value = gateway to destination
second value = gateway to source The exhibit shows gwy=10.1.0.254/10.1.10.1, so:
gateway to destination = 10.1.0.254
gateway to source = 10.1.10.1
So the verified answers are: C, D.
NEW QUESTION # 152
Which three common FortiGate-to-collector-agent connectivity issues can you identify using the FSSO real- time debug? (Choose three.)
Answer: B,C,E
NEW QUESTION # 153
Refer to the exhibit.
The port1 interface configuration on FortiGate and partial session information for ICMP traffic are shown.
Which two things happen to the session information if a routing change occurs that affects this session?
(Choose two answers)
Answer: A,C
Explanation:
The correct answers are A and C.
The exhibit shows that preserve-session-route is enabled on port1:
config system interface
edit " port1 "
set preserve-session-route enable
next
end
The study guide explains the effect of this setting exactly:
"enable: FortiGate marks existing session routing information as persistent, and applies only the modified routes to new sessions" It also states:
"The current route must still be present in the FIB. Otherwise, FortiGate flags the session as dirty and reevaluates it" And the same page further clarifies:
"If you enable this setting, sessions passing through that interface continue to pass without being affected by the routing changes. The routing changes apply only to new sessions. If the route is removed from the FIB, then FortiGate must flag the session as dirty, flush its gateway information, and reevaluate the session." This proves:
A is correct because with preserve-session-route enable, existing sessions are normally preserved and routing changes apply only to new sessions.
C is correct because the session remains unchanged unless the current route is removed from the FIB/routing table, in which case FortiGate dirties and reevaluates the session.
Why the other options are wrong:
B is wrong because when the active route is removed, FortiGate does not simply mark the session dirty and stop there. The study guide says it "flags the session as dirty and reevaluates it", which means route lookup happens again.
D is wrong because the session does change if the active route is removed. FortiGate flushes gateway information and reevaluates the session.
So the verified answers are: A, C.
NEW QUESTION # 154
Refer to the exhibit.
The partial output of FortiOS kernel slabs is shown. Which statement about total slab size is true?
Answer: B
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 # 155
Refer to the exhibit.
The output of a BGP debug command is shown.
Why has the local router at 172.16.23.58 been unable to establish adjacency with its only neighbor?
Answer: B
Explanation:
The correct answer is C .
The exhibit shows the neighbor state as Connect in the State/PfxRcd column. The study guide explains the BGP states exactly as follows:
* "Connect: Waiting for a successful three-way TCP connection"
* "OpenSent: Waiting for an OPEN message from the peer"
* "Established: Peers have successfully exchanged OPEN and keepalive messages" Because the router is still in Connect state, the TCP three-way handshake has not completed yet . In practical terms, the local router has sent the TCP SYN but has not successfully received the SYN/ACK needed to complete the handshake . That is why C is correct.
Why the other options are wrong:
* A is wrong because the message counters alone do not prove that the neighbor is unreachable. The study guide says the State/PfxRcd field shows the BGP state when the session is not established, and here that state is specifically Connect
* B is wrong because waiting for an OPEN message happens in OpenSent , not Connect
* D is not the best answer for this output. The study guide ties the displayed state directly to the protocol phase: Connect means the device is still waiting for a successful TCP handshake So the verified answer is: C .
NEW QUESTION # 156
......
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