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NEW QUESTION # 27
Refer to the exhibit.
and an OSPF route with destination 0.0.0.0/0 [110/10]. The OSPF route is marked with a checkmark in the FIB column, while the Static route has a dash.] The routing monitor displays multiple route entries, but only some are installed in the forwarding information base (FIB). After analyzing the two route entries with the destination 0.0.0.0/0, which statement correctly describe why one of these routes is not installed in the FIB? (Choose one answer)
- A. The OSPF route with a lower administrative distance is preferred over the static route.
- B. The two routes have identical destination prefixes, causing a conflict where only one is selected.
- C. The interface V100 for the OSPF route is down, preventing its installation.
- D. The OSPF route has a higher metric, making it less preferred than the static route.
Answer: A
Explanation:
According to theFortiSwitchOS 7.6 Administration Guideand theFortiSwitch 7.6 Study Guide, the Routing Information Base (RIB) contains all potential routes discovered by the switch, but theForwarding Information Base (FIB)only includes the "best" active routes used for hardware packet forwarding. When the routing process receives multiple paths to the exact same destination (in this case, the default route 0.0.0.0
/0), it must select the most reliable source based on a specific hierarchy.
The primary tie-breaker for routes from different protocols is theAdministrative Distance (AD). AD is a value from 1 to 255 that represents the trustworthiness of the routing source, where alower value is more preferred. In the provided exhibit:
* TheOSPFroute has an AD of110(shown as [110/10]).
* TheStaticroute has been configured with an AD of220(shown as [220/0]).
Because the OSPF route's AD (110) is lower than the Static route's AD (220), the system considers the OSPF route to be superior. Consequently, only the OSPF route is "Selected" and installed into theFIB. The static route remains in the RIB as a "backup" or floating static route; it will only be moved to the FIB if the preferred OSPF route becomes unavailable. Option D is incorrect because having identical prefixes is not a
"conflict" but a standard part of route selection where AD decides the winner. Option A is incorrect because metric is only compared if the AD is identical.
NEW QUESTION # 28
Refer to the exhibit.
The LLDP profile shown in the exhibit was configured to detect IP phones and automatically assign them to the appropriate VLAN. You apply this LLDP profile on a FortiSwitch port. Which configuration should you enable on the FortiSwitch profile to collect detailed information about all the connected IP phones? (Choose one answer)
- A. Configure a dedicated voice VLAN with DSCP 46.
- B. Create a new LLDP profile to handle different LLDP-MED TLVs.
- C. Enable auto-isl.
- D. Enable LLDP-MED inventory management TLVs.
Answer: D
Explanation:
According to theFortiSwitchOS 7.6 Administration Guideand theFortiSwitch 7.6 Study Guide, Link Layer Discovery Protocol-Media Endpoint Discovery (LLDP-MED) is an enhancement to standard LLDP that provides advanced discovery and configuration for endpoints li1ke IP phones. While the current configuration in the exhibit correctly handlesNetwork Policy TLVsto advertise QoS2and VLAN settings to the phones, it is missing the specific component required for data collection.34 To coll5ect detail6ed information such as themanufacturer, software version, hardware version, and serial or asset numbers, you mustEnable LLDP-MED inventory management TLVs (Option C). The documentation specifies that when the inventory-management TLV is active, the switch can retrieve these extensive device characteristics from the connected Media Endpoints. This information is then visible to the administrator through the FortiGate or FortiSwitch monitoring tools, providing a complete hardware inventory of the voice network.
Regarding the other options:Option Ais unnecessary because a single LLDP profile can support multiple TLV types simultaneously by adding them to the med-tlvs string.Option Bis already partially implemented in the exhibit's network policy but does not contribute to device detection or data collection.Option Dis used for automatic trunking between FortiSwitches and is unrelated to endpoint device information. Therefore, the addition of the inventory-management TLV is the specific requirement to fulfill the goal of collecting detailed IP phone data.
NEW QUESTION # 29
(Full question statement start from here)
You enable Dynamic Host Configuration Protocol (DHCP) snooping on a VLAN and configure a FortiSwitch port astrustedfor DHCP snooping. What additional step is required to configure the port as trusted for Dynamic ARP Inspection (DAI)? (Choose one answer)
- A. Enable static MAC learning on the port.
- B. Enable IP Source Guard (IPSG) on the port.
- C. DAI implicitly trusts the port.
- D. Manually set the port as trusted for DAI through the CLI.
Answer: C
Explanation:
In FortiSwitchOS 7.6,Dynamic ARP Inspection (DAI)is tightly integrated withDHCP snoopingto provide Layer 2 protection against ARP spoofing and man-in-the-middle attacks. DAI relies on theDHCP snooping binding table, which contains trusted IP-to-MAC-to-port mappings learned from legitimate DHCP transactions. Because of this dependency, the trust model for DAI is directly inherited from DHCP snooping.
According to the FortiSwitchOS 7.6 Administrator Guide, when a switch port is configured astrusted for DHCP snooping, that same port isautomatically treated as trusted by DAI. No additional configuration is required. This implicit trust relationship exists because trusted DHCP snooping ports are assumed to be connected to legitimate infrastructure devices such as DHCP servers, routers, or upstream network devices that must be allowed to send valid ARP replies.
On untrusted ports, DAI inspects ARP packets and validates them against the DHCP snooping database. If an ARP packet does not match an existing binding, it is dropped. On trusted ports, ARP packets bypass DAI inspection to ensure normal network operation and to avoid blocking valid infrastructure traffic.
The other options are incorrect. There is no separate CLI command required to trust a port for DAI (Option A). IP Source Guard (Option C) is another Layer 2 security feature that also depends on DHCP snooping but is not required to establish DAI trust. Static MAC learning (Option D) is unrelated to DAI trust behavior.
Therefore, once a port is configured as trusted for DHCP snooping,DAI implicitly trusts the port, making Option Bthe correct and fully verified answer based on FortiSwitchOS 7.6 documentation.
NEW QUESTION # 30
On supported FortiSwitch models, which access control list (ACL) stage is recommended for applying actions before the switch performs any layer 2 or layer 3 processing? (Choose one answer)
- A. Forwarding
- B. Ingress
- C. Egress
- D. Prelookup
Answer: D
Explanation:
According to theFortiSwitchOS 7.6 Administration Guideand theNSE 5 FortiSwitch 7.6 Administrator Study Guide, FortiSwitch supports a multi-stage ACL pipeline that allows for granular traffic control at different points in a packet's journey through the switch.1The documentation identifies three primary stages for ACL application:Prelookup,Ingress, andEgress.
* Prelookup (Option D):This is the earliest stage in the switching pipeline. The documentation explicitly states thatPrelookup ACLsare processedbefore any Layer 2 or Layer 3 lookupsare performed by the switch hardware. This stage is highly recommended for high-performance security actions, such as dropping unwanted traffic immediately upon arrival, because it prevents the switch from wasting internal resources (CPU and ASIC lookup cycles) on frames that are destined to be discarded anyway.
* Ingress (Option A):This stage occursafterthe switch has completed its Layer 2 (MAC table) and Layer
3 (routing table) lookups butbeforethe packet is queued for the egress port. While powerful, actions here occur after initial processing has already taken place.
* Egress (Option C):This stage is processed just before the frame leaves the switch through the destination port. It is typically used for final modifications or filtering based on the outgoing interface context.
Therefore, to achieve the goal of applying actionsbeforeany Layer 2 or Layer 3 processing occurs, the Prelookupstage is the technically correct and recommended choice in FortiSwitchOS 7.6.Forwarding (Option B)is a general functional stage of a switch but is not a specific ACL stage type in the FortiSwitch configuration hierarchy.
NEW QUESTION # 31
You are configuring FortiSwitch to perform layer 3 inter-VLAN routing while managed by FortiGate over FortiLink. On supported hardware models, FortiSwitch can offload routing decisions for better performance.
1How does FortiSwitch perform routing between VLANs? (Choose one answer)
- A. By supporting only dynamic routing protocols in hardware.
- B. By using a hardware forwarding table (FIB) programmed into ASIC.
- C. By relying entirely on the CPU in software.
- D. By disabling routing when managed by FortiGate.
Answer: B
Explanation:
According to theFortiSwitchOS 7.6 FortiLink Guideand theFortiSwitch 7.6 Study Guide, managed FortiSwitch units support a feature calledInter-VLAN Routing Offload. Traditionally, in a FortiLink deployment, traffic between VLANs is "hair-pinned" back to the FortiGate for routing and security inspection. However, to increase performance and reduce latency, the FortiGate can program the managed FortiSwitch to handle Layer 3 routing of trusted traffic locally.
The technical mechanism behind this performance gain is the use of theForwarding Information Base (FIB) programmed directly into the switch'sASIC (Application-Specific Integrated Circuit). When routing offload is enabled (specifically using the set switch-controller-offload enable command on the VLAN interface), the FortiGate pushes the necessary routing table and gateway information to the switch hardware.
This allows the FortiSwitch to perform packet lookups and forwarding decisions at wire speed within the silicon, bypassing the general-purpose CPU and the FortiLink control plane for that specific traffic flow.
The documentation notes that this feature requires anAdvanced Features Licenseon the tier-1 FortiSwitch and is typically applied to the switch closest to the FortiGate.2While dynamic routing (Option B) is supported on FortiSwitch, it is not theonlything offloaded; static routes and inter-VLAN gateway traffic are the primary use cases for this offload mechanism. Therefore, the correct architectural description is that the switch utilizes its hardware-based FIB to accelerate inter-VLAN communication.
NEW QUESTION # 32
(Full question statement start from here)
How does enabling an IGMP snooping proxy on FortiSwitch help reduce the number of IGMP reports processed by the IGMP querier? (Choose one answer)
- A. By forwarding IGMP reports only when the first member joins and the last member leaves
- B. By suppressing duplicate IGMP reports within the VLAN
- C. By converting IGMP traffic to unicast
- D. By converting IGMP reports into broadcast packets to reach all VLAN members
Answer: A
Explanation:
In FortiSwitchOS 7.6,IGMP snooping proxyis an enhancement to standard IGMP snooping that optimizes multicast control-plane traffic between hosts, switches, and the upstream IGMP querier. Its primary purpose is toreduce the number of IGMP membership reportsthat the querier must process, thereby improving scalability and efficiency in multicast-enabled networks.
Without an IGMP snooping proxy, every multicast receiver on a VLAN independently sends IGMP membership reports to the querier. In environments with many hosts subscribing to the same multicast groups, this behavior can generate a large volume of redundant IGMP reports, unnecessarily increasing control-plane load on both the querier and intermediate network devices.
When the IGMP snooping proxy feature is enabled, the FortiSwitch acts as anIGMP proxy agenton behalf of hosts within the VLAN. The switch tracks multicast group membership locally andsuppresses individual IGMP reports from downstream hosts. Instead, the FortiSwitch forwards an IGMP report upstreamonly when the first host joins a multicast group. Likewise, when hosts leave the group, the switch sends an IGMP leave message or reportonly when the last remaining member leaves.
This aggregation mechanism dramatically reduces IGMP signaling traffic while preserving correct multicast forwarding behavior. Importantly, the switch does not alter IGMP packet types or convert them to broadcast or unicast traffic. It simply optimizes reporting behavior based on group membership state.
Therefore, the correct explanation is that IGMP snooping proxy reduces IGMP report processingby forwarding IGMP reports only when the first member joins and the last member leaves, makingOption Dthe correct and fully verified answer according to FortiSwitchOS 7.6 documentation.
NEW QUESTION # 33
Which two are valid traffic processing actions that a FortiSwitch access control list (ACL) can apply to matching traffic? (Choose two answers)
- A. Redirect frames to another port.
- B. Drop frames.
- C. Encrypt frames.
- D. Assign traffic to a high-priority egress queue.
Answer: A,B
Explanation:
According to theFortiSwitchOS 7.6 Administration Guideand theNSE 5 FortiSwitch Study Guide, Access Control Lists (ACLs) are used to provide granular control over the traffic entering or leaving a switch port.
ACLs function by definingclassifiers(to match specific traffic based on criteria like MAC address, IP address, or VLAN ID) and then applying specificactionsto that matched traffic.
The documentation explicitly categorizes ACL actions into three distinct groups:
* Traffic Processing:This category includes actions that dictate the physical handling of the frame. Valid actions listed in the official documents under this header includecount(to track packet volume),drop(to block the traffic),redirect(to forward the frame to a specific physical port or interface instead of its original destination), andmirror(to send a copy to a monitoring port).
* Quality of Service (QoS):This category focuses on traffic prioritization and bandwidth management. It includes actions such asrate limiting,remarking CoS/DSCP values, andsetting the egress queue(e.g., assigning a packet to a specific queue number from 0 to 7).
* VLAN:This allows for modifications such as setting anouter VLAN tagon frames.
The question specifically asks for "traffic processing actions." Based on the 7.6 documentation,Redirect frames to another port(Option A) andDrop frames(Option D) are explicitly defined under the "Traffic Processing" action header. While "Assign traffic to a high-priority egress queue" (Option B) is a valid action an ACL can perform, it is technically categorized as aQoS action, not a traffic processing action.Encrypt frames(Option C) is not a supported ACL action on FortiSwitch hardware, as encryption is typically handled at higher layers or via dedicated MACsec configurations on specific models.
NEW QUESTION # 34
You are managing FortiSwitch ports from a FortiGate device with multiple VDOMs. Which two methods can you use to assign FortiSwitch ports to VDOMs? (Choose two answers)
- A. Use FortiGate policies to control inter-VDOM traffic for FortiSwitch ports
- B. Using a virtual port pool (VPP) to create virtualized ports that can be assigned to different VDOMs
- C. Use interface role mapping to dynamically assign FortiSwitch ports to VDOMs based on Dynamic Host Configuration Protocol (DHCP) scope
- D. Assigning the port directly to a specific VDOM for dedicated physical isolation
Answer: B,D
Explanation:
According to theFortiOS 7.6 Administration Guideand theFortiSwitch 7.6 FortiLink Guide, managing FortiSwitch units in a multi-VDOM environment allows for granular control over physical switch resources.
By default, when a FortiSwitch is discovered and authorized via FortiLink, its ports reside in the same VDOM as the FortiLink interface (typically the root or a dedicated management VDOM).
To allocate these ports to other VDOMs, administrators have two primary methods. The first method isdirect assignment(Option A). Using the FortiGate CLI or GUI, an administrator can export a specific physical port directly to a target VDOM. For example, the command set export-to <VDOM_name> under the config switch- controller managed-switch port settings physically isolates that port for use only by the specified VDOM.
This is ideal for multi-tenant scenarios where a specific physical connection must be dedicated to a single business unit.
The second method involves using aVirtual Port Pool (VPP)(Option D). This method provides a layer of virtualization for switch ports. An administrator first creates a pool (VPP) in the management VDOM and assigns physical ports to it. Then, from the tenant VDOM, an administrator can "request" a port from that specific pool. This allows for a more flexible "shared" infrastructure where ports are not permanently tethered to a single VDOM until they are claimed from the pool. Both methods ensure that traffic remains logically and physically isolated between VDOMs, supporting the security requirements of complex enterprise deployments. Options B and C are incorrect as they relate to traffic routing and device identification rather than the foundational assignment of hardware ports to virtual domains.
NEW QUESTION # 35
You are designing a FortiSwitch backbone where every FortiSwitch device must connect to every other FortiSwitch for maximum redundancy. To maintain connectivity while preventing loops, which protocol or feature must you configure on the switches? (Choose one answer)
- A. Link aggregation group (LAG)
- B. Full mesh high availability (HA)
- C. Spanning Tree Protocol (STP)
- D. Multichassis link aggregation group (MCLAG)
Answer: C
Explanation:
According to theFortiSwitchOS 7.6 Administration Guide(specificallyPage 178) and theFortiSwitch 7.6 Study Guide, the Spanning Tree Protocol (STP) is the fundamental protocol used to manage redundant paths in a Layer 2 network. In the scenario described, where every FortiSwitch connects to every other FortiSwitch, afull Layer 2 meshis created. This architecture inherently produces multiple physical switching loops that, if left unmanaged, would cause catastrophic broadcast storms.
STP is responsible for detecting these loops by exchangingBridge Protocol Data Units (BPDUs). It then mathematically calculates a loop-free logical topology by placing redundant ports into ablocking (discarding) state while keeping primary paths in aforwardingstate. WhileMCLAG (Option A)provides node-level redundancy and eliminates STP delays by allowing two switches to appear as one, it is not a standalone solution for a global full-mesh topology. In fact, Fortinet MCLAG explicitly relies on STP through the mclag- stp-aware feature to detect and prevent loops caused by connections outside the Inter-Chassis Link (ICL).
Therefore, although MCLAG and LAG increase bandwidth and availability,STPremains the required underlying mechanism to maintain network stability in any highly redundant mesh environment. "Full mesh HA" (Option C) is not a defined feature in FortiSwitchOS 7.6.
NEW QUESTION # 36
Refer to the exhibit.
You just connected three FortiSwitch devices:Core-1,Core-2, andAccess-1. Core-1 and Core-2 both connect to Access-1 for redundancy. All switches are managed by FortiGate, which uses port4 as the FortiLink interface. After you enable the uplink ports on Core-2, you notice that port3 on Access-1 enters the Discarding STP state. What is the most likely cause of this behavior? (Choose one answer)
- A. Access-1 is not authorized by FortiGate.
- B. Core-2 has the lowest bridge priority.
- C. Bridge Protocol Data Unit (BPDU) Guard is enabled, which shuts down the port after it receives BPDUs.
- D. FortiGate is not running Spanning Tree Protocol (STP) on the FortiLink interface.
Answer: B
Explanation:
According to theFortiSwitchOS 7.6 Administration Guideand theFortiLink 7.6 Study Guide, the Spanning Tree Protocol (STP) is automatically enabled on managed FortiSwitches to ensure a loop-free Layer
2 topology within the FortiLink fabric. When multiple physical paths exist between switches (as shown in the redundant connections between the Core and Access tiers), STP must block one of the paths to prevent a broadcast storm.
The behavior described in the exhibit-whereport3 on Access-1enters aDiscarding state-is a result of the STP election process. In a standard STP environment, switches elect aRoot Bridgebased on the lowestBridge Priority(or lowest MAC address as a tie-breaker). Once a root is established, other switches identify the
"best" path to that root (the Root Port) and block all other redundant paths.
The provided exhibit shows that Access-1 has two paths to the core: one to Core-1 and one to Core-2. The fact that the path to Core-2 is discarded suggests that the STP topology was recalculated when Core-2 was enabled. In the context of Fortinet technical exams for this specific scenario,Option C (Core-2 has the lowest bridge priority)is the standard answer identifying that Core-2's priority settings influenced the STP tree such that Access-1's link to it was determined to be the redundant (alternate) path.
If the switches were configured withMCLAG (Multi-Chassis Link Aggregation), both physical links would be treated as a single logical trunk, and neither would be in a discarding state. However, without MCLAG, the system relies on bridge priorities to prune the loop.BPDU Guard (Option A)is incorrect because it would administratively shut down the port rather than placing it in an STP "Discarding" state.Option Bis incorrect as the switch would not appear in the managed topology if unauthorized.
NEW QUESTION # 37
Which QoS mechanism maps packets with specific CoS or DSCP markings to an egress queue?
- A. Queuing for egress traffic
- B. Marking for ingress traffic
- C. Classification for ingress traffic
- D. Rate limiting for egress traffic
Answer: C
Explanation:
"Classification: FortiSwitch maps packets with a given CoS or DSCP marking to an egress queue. There are eight egress queues on each port: queues 0 to 7." In Quality of Service (QoS) mechanisms, the process of mapping packets with specific CoS (Class of Service) or DSCP (Differentiated Services Code Point) markings to an egress queue involves two key steps:
classificationandqueuing.
* Classification: This occurs on the ingress side (incoming traffic). The switch examines the packet headers (e.g., CoS or DSCP values) to determine how the traffic should be treated. Based on this classification, the switch assigns the packet to a specific priority level or queue.
* Queuing: Once the packet is classified, it is mapped to an egress queue based on its priority level. The egress queues are used to manage how traffic is transmitted out of the switch.
* Option A (Queuing for egress traffic)refers to managing how packets leave the switch, but it does not involve the initial mapping of CoS/DSCP values to a queue.
* Option C (Rate limiting for egress traffic)is about controlling the rate of outgoing traffic, which is unrelated to CoS/DSCP mapping.
* Option D (Marking for ingress traffic)involves modifying the CoS or DSCP values of packets as they enter the switch, but it does not map them to an egress queue.
Thus,classification for ingress trafficis the mechanism that identifies and maps packets with specific CoS or DSCP markings to an appropriate egress queue.
NEW QUESTION # 38
Exhibit.
What conditions does a FortiSwitch need to have to successfully configure the options shown in the exhibit above? (Choose two.)
- A. The CLI commands are enabling a splitpo rt into four 10Gbps interfaces.
- B. The split port can be assigned to native VLAN
- C. The port full speed prior the split was 100G SFP+
- D. The FortiSwitch model is equipped with a maximum of 54 interfaces.
Answer: A,C
Explanation:
Regarding the configuration of a FortiSwitch to split a port into multiple smaller interfaces:
* The CLI commands are enabling a split port into four 10Gbps interfaces (Option B): The command shown in the exhibit is typically used to configure a high-speed port (like a 40Gbps or 100Gbps interface) to be divided into smaller, independent 10Gbps interfaces. This feature allows more flexible use of the switch's physical resources.
* The port full speed prior to the split was 100G SFP+ (Option C): Given the context of splitting the port into multiple 10Gbps interfaces, the original port configuration likely supported a high-speed transceiver such as 100G SFP+. This would make it technically feasible to divide the interface into multiple 10Gbps channels, enhancing connectivity options without requiring additional physical interfaces.
These configurations and capabilities are typical in modern network setups, especially in environments requiring high density and flexibility in connectivity, allowing network administrators to optimize physical infrastructure efficiently.
NEW QUESTION # 39
What are two reasons why time synchronization between FortiGate and its managed FortiSwitch is critical in switch management? (Choose two.)
- A. FortiSwitch will not allow other FortiSwitch devices in the chain be discovered by FortiGate.
- B. FortiSwitch does not retain its time after a reboot, which gets reset after each reboot.
- C. FortiSwitch cannot complete the DTLS handshake used in the CAPWAP tunnel.
- D. FortiSwitch will not be able to become an NTP server for downstream devices.
Answer: B,C
Explanation:
Time synchronization between FortiGate and its managed FortiSwitch devices is essential for several reasons:
* A. FortiSwitch does not retain its time after a reboot, which gets reset after each reboot.This characteristic of FortiSwitch underlines the importance of time synchronization with FortiGate. Since FortiSwitch loses its time settings upon reboot, synchronizing with FortiGate ensures that its system clock is accurate, which is vital for logging, troubleshooting, and security timestamping.
* C. FortiSwitch cannot complete the DTLS handshake used in the CAPWAP tunnel.Accurate time synchronization is crucial for security protocols such as DTLS, which rely on timestamped certificates for establishing a secure connection. If the time on FortiSwitch is not synchronized with FortiGate, the DTLS handshake used in the CAPWAP tunnel for secure communication may fail due to time discrepancies, impacting the management and operation of the switch.
NEW QUESTION # 40
Refer to the exhibit.
After reviewing the CLI command output, which two conclusions can you make about the Dynamic Host Configuration Protocol (DHCP) snooping configuration? (Choose two answers)
- A. Option 82 is enabled on VLAN 10.
- B. All ports are untrusted, except port2.
- C. DHCP broadcasts are not restricted.
- D. DHCP snooping is disabled globally.
Answer: A,C
Explanation:
According to theFortiSwitchOS 7.6 Administration Guideand theFortiSwitch 7.6 Study Guide, DHCP snooping is a security feature that acts as a firewall between untrusted hosts and trusted DHCP servers. It validates DHCP messages from untrusted sources and filters out invalid messages.
The provided debug output reveals specific configuration details that support the correct answers:
* Option 82 Support (Option C):The output line option82-enabled-vlans : 10 explicitly indicates that DHCP Option 82 is active for that specific VLAN. When Option 82 is enabled on a VLAN, the FortiSwitch (acting as a relay agent or snooping device) inserts information about the physical port and VLAN into the DHCP request packet before it is forwarded to the server. This allows the server to apply location-based IP address allocation policies.
* Broadcast Traffic Handling (Option D):In the "DHCP Global Configuration" section, theDHCP Broadcast Modeis set toAll. In FortiSwitchOS 7.6, the default behavior for DHCP snooping is to forward DHCP broadcast traffic to all ports in the VLAN unless explicitly restricted. Setting the mode to "All" means the switch does not limit the propagation of DHCP broadcast packets solely to trusted interfaces; instead, they are flooded to both trusted and untrusted ports within the broadcast domain. To restrict broadcasts, the mode would need to be changed to "Trusted-Only".
Regarding the incorrect options:Option Ais false because the output shows snoop-enabled-vlans : 10, confirming it is active.Option Bis incorrect because the trusted ports list includes port2, FlInK1, and MLAG0, meaning multiple interfaces are trusted, not just port2.
NEW QUESTION # 41
Which two rules used by MSTP are similar to rules used by other STP methods? (Choose two.)
- A. MSTP uses root bridge selection, similar to rapid STP
- B. MSTP uses port role election, similar to rapid STP on the instances.
- C. MSTP uses timers for transitioning the ports, similar to regular STP.
- D. MSTP uses alternate path and primary path, similar to regular STP.
Answer: A,B
Explanation:
"MSTP is based on RSTP", so the same port role election and the same root bridge selection. Reference:
FortiSwitch 7.2 Study Guide, page 187
NEW QUESTION # 42
Which statement best describes a benefit of using MAC, IP address, or protocol-based VLAN assignments on FortiSwitch? (Choose one answer)
- A. It assigns ports to VLANs regardless of device type or traffic.
- B. It requires devices to authenticate through a RADIUS server before VLAN tagging.
- C. It offers dynamic segmentation benefits similar to 802.1X authentication.2
- D. It disables 802.1X authentication while preserving user access control.1
Answer: C
Explanation:
According to theFortiSwitchOS 7.6 Administration Guideand theFortiSwitch 7.6 Study Guide, MAC- based, IP-based, and protocol-based VLAN assignments are methods ofdynamic VLAN assignment. These features allow the switch to categorize incoming traffic and assign it to a specific VLAN based on the packet's attributes rather than just the physical port it is connected to.3 The primary benefit of these methods is that theyoffer dynamic segmentation benefits similar to 802.1X authentication (Option D). In a modern network, devices with different security requirements (such as IoT devices, printers, and workstations) often connect to the same physical switch ports. 802.1X is the "gold standard" for dynamic segmentation but requires a supplicant on the client device.4For devices that do not support 802.1X, MAC or protocol-based assignments provide a similar result: they ensure the device is automatically placed into its designated secure segment (VLAN) the moment it is identified by the switch.
* MAC-based:Assigns a VLAN based on the source MAC address.
* IP-based:Assigns a VLAN based on the source IP address or subnet.
* Protocol-based:Assigns a VLAN based on the Ethernet type (e.g., IPv4, IPv6, or AppleTalk).
Option A is incorrect because these features complement rather than "disable" 802.1X. Option B is incorrect because these specific assignment types can be configured locally on the switch without a RADIUS server.
Option C is the opposite of how these features work, as they explicitly look at the device type or traffic to make an assignment.
NEW QUESTION # 43
Refer to the diagnostic output:
What makes the use of the sniffer command on the FortiSwitch CLI unreliable on__port__23?
- A. Just the port egress payloads are printed on CLI.
- B. The switch port might be used as a trunk member
- C. Only untagged VLAN traffic can be captured.
- D. The types of packets captured is limited.
Answer: D
Explanation:
Page 452 of 7.2 study guide, specifically states "Although you can use the sniffer command to capture traffic on switch ports, the types of packets capture by the sniffer are very limited.
The use of the sniffer command on FortiSwitch CLI can be unreliable on port 23 for specific reasons related to the nature of traffic on the port:
D).The switch port might be used as a trunk member.When a switch port is configured as a trunk, it can carry traffic for multiple VLANs. If the sniffer is set up without specifying VLAN tags or a range of VLANs to capture, it may not accurately capture or display all the VLAN traffic due to the volume and variety of VLAN-tagged packets passing through the trunk port. This limitation makes using the sniffer on a trunk port unreliable for capturing specific VLAN traffic unless properly configured to handle tagged traffic.
References:
For guidelines on how to properly use sniffer commands on trunk ports and configure VLAN filtering, consult the FortiSwitch CLI reference available through Fortinet support channels, including theFortinet Knowledge Base.
NEW QUESTION # 44
Refer to the exhibits
Traffic arriving on port2 on FortiSwitch is tagged with VLAN ID 10 and destined for PC1 connected on port1. PC1 expects to receive traffic untagged from port1 on FortiSwitch. Which two configurations can you perform on FortiSwitch to ensure PC1 receives untagged traffic on port1? (Choose two.)
- A. Add VLAN ID 10 as a member of the untagged VLANs on port1.
- B. Add the MAC address of PC1 as a member of VLAN 10.
- C. Enable Private VLAN on VLAN 10 and add VLAN 20 as an isolated VLAN.
- D. Remove VLAN 10 from the allowed VLANs and add it to untagged VLANs on port1.
Answer: A,D
Explanation:
According to theFortiSwitchOS 7.6 Administration Guideand theFortiSwitch 7.6 Study Guide, the way a FortiSwitch handles VLAN tags on egress (outgoing) traffic is governed by the port'sNative VLANand its Untagged VLAN list. When traffic for VLAN 10 arrives at port2 (the uplink) and is forwarded to port1, the switch must determine whether to strip the 802.1Q tag before transmission.
* Untagged VLAN List (Option B):The documentation explicitly states that the "untagged VLAN list" specifies VLANs for which the port will transmit frameswithout the VLAN tag. By adding VLAN ID
10 to the untagged VLANs on port1, any traffic belonging to VLAN 10 will have its tag stripped at the egress point, ensuring PC1 receives a standard untagged frame.
* Configuration Logic (Option C):In FortiSwitch management, moving a VLAN from the "Allowed" list (which typically implies tagged delivery) to the "Untagged" list on a specific interface forces the switch to perform the tag-stripping action. This effectively converts the port from a trunked behavior for that VLAN to an "access" or untagged behavior.
Regarding the incorrect options:Option A (MAC-based assignment)is used primarily foringress classification. While it can assign a device to a VLAN when it sends trafficintothe switch, the documentation notes that by default, egress packets for MAC-based VLANs still include the tag unless the untagged list is configured.Option D(Private VLANs) is a security feature for isolating traffic between ports within the same VLAN and does not address the physical tagging requirements of the endpoint.
NEW QUESTION # 45
Refer to the diagnostic output:
Two entries in the exhibit show that the same MAC address has been used in two different VLANs. Which MAC address is shown in the above output?
- A. It is a MAC address of FortiLink interface on FortiGate.
- B. It is a MAC address of a switch that accepts multiple VLANs.
- C. It is a MAC address of an upstream FortiSwitch.
- D. It is a MAC address of FortiGate in HA configuration.
Answer: B
Explanation:
The MAC address "00:50:56:96:e3:fc" appearing in two different VLANs (4089 and 4094) in the diagnostic output indicates it is a MAC address associated with a device that supports traffic from multiple VLANs.
Such a behavior is typical of network infrastructure devices like switches or routers, which are configured to allow traffic from various VLANs to pass through a single physical or logical interface. This is essential in network designs that utilize VLANs to segregate network traffic for different departments or use cases while using the same physical infrastructure.
References:
For more detailed information on MAC table diagnostics and VLAN configurations in FortiGate devices, refer to the official Fortinet documentation:Fortinet Product Documentation.
NEW QUESTION # 46
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