The FortiLink authorization process is an integral part of setting up FortiSwitch to be managed by FortiGate.
The correct statements regarding the FortiLink authorization process are:
C).A FortiLink frame is sent by FortiGate to FortiSwitch to complete the authorization.This is a part of the FortiLink protocol, where FortiGate communicates with the connected FortiSwitch to establish management and control. This frame initiates the configuration and management process, allowing FortiGate to effectively control the switch.
D).FortiLink authorization sets the FortiSwitch management mode to FortiLink.Once authorized, the management mode of FortiSwitch is set to FortiLink, indicating that it is being managed via a FortiLink connection from a FortiGate appliance. This changes the operational mode of the switch to be under the control of the FortiGate for centralized management and policy application.
References:
Further details on the FortiLink setup and authorization process can be accessed through the FortiGate configuration guides available on theFortinet Documentation site.

"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.

The appearance of a serial number in the Native VLAN column for port23 suggests that the switch connected to this port is identified uniquely in the network.Given the options provided:
* A standalone switch with the shown serial number is connected on port23 (Option C): This is the most plausible explanation. The FortiSwitch configuration interface is displaying the serial number of a standalone switch that is directly connected to port23. This kind of display helps in identifying and managing individual devices in a network setup, especially in environments with multiple switches.

According to theFortiSwitchOS 7.6 Administration Guideand theFortiSwitch 7.6.1 Administration Guide-Standalone Mode, aRouted VLAN Interface (RVI)is a physical port or trunk interface that is converted to support Layer 3 routing protocols.2This transformation changes the fundamental nature of the interface from a switching component to a routing component.
When an RVI is enabled on a specific physical port or trunk, the system automatically assignsVLAN 4095to that interface at the backend.3This specific VLAN ID is reserved across the FortiSwitch platform to signal that the interface is no longer operating as a standard Layer 2 switch port.4Once configured as an RVI, the interface supports advanced Layer 3 features such asOSPF, BGP, RIP, IS-IS, and static routing, as well as Virtual Routing and Forwarding (VRF)for routing isolation.5 Importantly, the documentation states that upon enabling RVI,Layer 2 protocols(such as Spanning Tree Protocol or 802.1X port-based security) and most standard switch interface features aredisabledon that port.
6This is because the port is now treated as a dedicated Layer 3 "routed" interface rather than a member of the Layer 2 switching fabric.7Additionally, if the underlying physical port or trunk interface is administratively shut down, the associated RVI will also transition to a "down" state.

According to theFortiOS 7.6 Administration Guideand theFortiManager 7.6 Study Guide, the most efficient and scalable method for deploying standardized configurations across a high volume of sites (such as
100 branch offices) isZero-Touch Provisioning (ZTP) through FortiManager.
ZTP allows administrators to createModel DevicesandProvisioning Templateswithin FortiManager before the physical hardware is even unboxed. When a factory-reset FortiGate at a branch office is connected to the internet, it automatically reaches out toFortiCloud(FortiDeploy) to discover its assigned management entity.
Once redirected to the centralFortiManager, the FortiGate retrieves its full configuration, including the FortiLinksettings required to manage the local FortiSwitch.
The 7.6 documentation highlights that because the FortiSwitch is managed via FortiLink, its configuration is technically part of the FortiGate's managed objects. Therefore, by using FortiManager to push a single template that includes both the FortiGate settings and theSwitch Controllerconfigurations, the team can ensure that every branch office is configured identically and without manual CLI intervention. This method significantly reduces the risk of human error and ensures rapid, consistent deployment across the entire fabric.
Options A and B refer to cloud management platforms that are effective but do not offer the same level of integrated, template-driven orchestration for large-scale enterprise ZTP as FortiManager. Option D is incorrect as "FortiSwitch Manager" is not the primary orchestration tool for branch-wide ZTP in a FortiLink- integrated environment.