Fortinet NSE 6 - FortiSwitch 7.2 NSE6_FSW-7.2 Exam Practice Test

Answer : B, C

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.

Answer : A, B

In the context of the topology provided and the concepts of LAG (Link Aggregation Group) and MCLAG (Multi-Chassis Link Aggregation), the spanning tree protocol's perspective can be summarized as follows:

Switch 1, Switch 2, and Switch 3 are seen as one MCLAG peer group (Option A): In this configuration, Switches 1 and 2 form a Multi-Chassis Link Aggregation Group (MCLAG) which effectively allows them to act as a single logical entity from the perspective of downstream switches (in this case, Switch 3). This grouping enhances fault tolerance and bandwidth by pooling the link resources of the two switches.

Switch 3 and Switch 4 uplinks are treated as single interfaces (Option B): This option suggests that the connections between Switch 3 and Switch 4 (presumably using LAG) are perceived by the spanning tree protocol as a single logical connection. This perception is due to the LAG configuration, which combines multiple network cables/ports into a single logical link to provide redundancy and increase bandwidth.

The use of LAG and MCLAG is well-documented in networking literature and Fortinet's own documentation, as these technologies are commonly employed to enhance redundancy and bandwidth. Fortinet's implementation of these protocols is designed to maintain compatibility with standard networking protocols, including Spanning Tree Protocol (STP).

Answer : D

While FortiSwitch can collect all the listed LLDP-MED TLVs (Network Policy, Power Management, Location, and Inventory Management), the primary focus for tracking and identifying network devices is on the Inventory Management TLV.

This TLV carries critical details such as:

Manufacturer

Model

Hardware/Firmware versions

Serial/Asset numbers

This information provides a granular understanding of the devices on your network.

Answer : A

The correct statement about using the Switch Port Analyzer (SPAN) packet capture method on FortiSwitch is that 'Mirrored traffic can be sent across multiple switches (A).' This feature allows for extensive traffic analysis as it enables network administrators to configure SPAN sessions that span across different switches, thereby providing the capability to monitor traffic across a broad segment of the network infrastructure.

Answer : C

Enable IGMP snooping proxy (C): To reduce the number of unwanted IGMP reports processed by the IGMP querier, enabling IGMP snooping proxy is effective. This feature acts as an intermediary between multicast routers and hosts, optimizing the management of IGMP messages by handling report messages locally and reducing unnecessary IGMP traffic across the network. This minimizes the processing load on the IGMP querier and improves overall network efficiency.

Answer : B

'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: classification and queuing .

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 traffic is the mechanism that identifies and maps packets with specific CoS or DSCP markings to an appropriate egress queue.

Answer : A

QSFP+ transceiver (A): The QSFP+ (Quad Small Form-factor Pluggable Plus) transceiver is designed to handle 40G data rates and can be used to split a 40G port into multiple 10G connections. This type of transceiver supports such configurations, making it suitable for high-density applications where multiple 10G connections are derived from a single 40G port, thereby maximizing the utilization of the port and the fiber infrastructure.