HP HPE6-A86 - HPE Network Switching Associate Exam

The correct answer is D. Allowed VLANs between access switches. The diagram shows Server-1 connected to Access-2 in VLAN 20 and PC-1 connected to Access-1. The inter-switch link between Access-1 and Access-2 is shown as a trunk carrying VLANs 1, 10, and 20. If users on Access-1 cannot reach Server-1 in VLAN 20 after a recent change, while devices directly connected to Access-2 are not affected, the most likely issue is that VLAN 20 is not being correctly carried across the trunk between the access switches. HPE Aruba Networking AOS-CX documentation states that vlan trunk allowed defines which VLAN traffic is allowed across a trunk interface. It also explains that allowed VLANs are the VLANs that can be transported by the trunk; if a required VLAN is missing from the allowed list, that VLAN’s traffic will not traverse the trunk. Option A is less likely because devices directly connected to Access-2 can access Server-1, indicating Server-1’s local VLAN placement is probably correct. Option B is unlikely because a down trunk would affect more VLANs than just access to VLAN 20. Option C is not supported by the symptom pattern.

The correct answer is B. Transport Layer. Data segmentation is a Transport Layer function. At Layer 4, protocols such as TCP divide application data into smaller pieces called segments so that data can be transported between endpoints. The Transport Layer also uses TCP and UDP port numbers to identify application conversations between hosts. HPE Aruba Networking AOS-CX ACL documentation references TCP/UDP ports as Layer 4 ports, which aligns transport-layer port usage with the Transport Layer. The Application Layer provides user-facing application services, but it does not perform transport segmentation. The Network Layer handles logical IP addressing and routing. The Data Link Layer handles Ethernet framing, MAC addressing, and local delivery on a network segment. Therefore, when the question asks where data segmentation occurs in the OSI model, the correct answer is the Transport Layer. ( arubanetworking.hpe.com )

The correct answer is A. Output of show tech. HPE Aruba Networking support and diagnostics documentation commonly uses technical-support command output as a key troubleshooting artifact for TAC analysis. The documentation specifically states to check physical cabling and generate show tech when opening a TAC case. The purpose of show tech output is to collect a broad set of switch operational details, including configuration, system status, interface information, logs, and other diagnostic data that can help TAC understand the condition of the device at the time of the issue. Option B is incorrect because “generated support keys” are not the standard required item from the listed choices for opening a CX switch TAC case. Option C is incorrect because TAC does not normally require open SSH access over the Internet, and exposing management access publicly would be poor security practice. Option D is incorrect because TAC may ask for software version information, but a copy of the running firmware image itself is not the first diagnostic item to prepare. The best initial evidence is the show tech output.

The correct answer is B. CX 8100 Series switches do not support VSF. The error appears because the vsf command is not valid on a platform that does not support Virtual Switching Framework. HPE Aruba Networking documentation identifies VSF as supported on specific access-switch platforms such as the CX 6200 and CX 6300 families. For higher-end aggregation and core platforms, including the CX 8100, HPE Aruba Networking uses Virtual Switching Extension, or VSX, rather than VSF. Official HPE Aruba Networking Central documentation states that VSX is supported on AOS-CX 6400, 8100, 8320, 8325, 8360, 8400, 9300, and 10000 switch series. Other AOS-CX documentation for 8xxx switch families also notes that VSF is not supported on those switches. Option A is incorrect because physical VSF links are not the reason the command is rejected. Option C is incorrect because VSF cannot be globally enabled on CX 8100. Option D is incorrect because this is a platform-support limitation, not a firmware issue.

The correct answer is B. Switch port. The Physical Layer of the OSI model is concerned with the physical transmission of signals across network media, including electrical or optical signaling, cabling, connectors, transceivers, and physical interfaces. HPE Aruba Networking hardware and transceiver documentation describes switch ports, transceiver slots, copper cabling, fiber-optic cabling, and link LEDs as physical connection components. A switch port is therefore the only option listed that belongs directly to the Physical Layer. Option A, URL, is associated with application-level access to web resources and is not a Physical Layer item. Option C, IP address, belongs to Layer 3 because it is used for logical addressing and routing. Option D, TCP port, belongs to Layer 4 because TCP ports identify transport-layer application sessions. Although a switch port may participate in Layer 2 switching after a link is established, the physical connector/interface itself is part of the Layer 1 network infrastructure. This makes “switch port” the correct answer from the listed options.