HPE6-A86 Questions and Answers

The correct answer is B. The switch does not have enough PoE budget per port. The HPE Aruba Networking 580EX Series access point requires appropriate power to boot and illuminate its LEDs. HPE Aruba Networking documentation states that the 580EX Series supports 802.3bt Class 6 power or AC power. A standard HPE Aruba Networking CX 6000 48G 4SFP switch, such as the R8N86A model, is a non-PoE switch; the PoE-capable version is identified separately as the CX 6000 48G Class 4 PoE 4SFP 740W switch. Even when using a PoE-capable CX 6000 model, Class 4 PoE provides up to 30W per port, while the AP requires 802.3bt Class 6 or AC power for normal operation. Therefore, if the AP has no lights, the most likely cause from the options is insufficient or unavailable PoE power from the switch port. A wrong VLAN, missing STP configuration, or failure to connect to HPE Aruba Networking Central would not normally prevent the AP from receiving power and showing LEDs.

The correct answer is C. Input errors have occurred. The interface output shows CRC/FCS errors with a value of 1254 under the RX column. CRC/FCS errors are receive-side frame check errors, so they indicate that the switch has received corrupted frames on this interface. HPE Aruba Networking AOS-CX show interface documentation lists interface statistics including packets, bytes, dropped frames, pause frames, errors, CRC/FCS, collisions, runts, and giants, which confirms that CRC/FCS is part of the interface error statistics. Option A is incorrect because the output says VLAN Mode: access and Access VLAN: 90; an access VLAN is untagged toward the endpoint, not an 802.1Q tagged trunk VLAN. Option B is incorrect because the MTU is shown as 1500, and the Jumbos counter is 0, so the output does not indicate jumbo-frame use. Option D is incorrect because the shown output does not state that PoE is disabled. The key troubleshooting clue is the nonzero receive CRC/FCS counter. ( arubanetworking.hpe.com )

The correct answer is B. You need to specify the mgmt VRF at the end of the ping command. On HPE Aruba Networking CX switches, the out-of-band management interface uses the management VRF. If you issue a normal ping 10.1.50.11 command without specifying the management VRF, the switch attempts to send the ping using the default routing context rather than the out-of-band management interface. HPE Aruba Networking AOS-CX documentation for the ping command shows that the command supports the optional vrf < vrfname > parameter. The AOS-CX diagnostics documentation also specifically lists this as a cause of ping failure: the user intended to ping through the management VRF but forgot to add vrf mgmt to the command. The correct command would therefore be similar to ping 10.1.50.11 vrf mgmt. Option A is incorrect because the management interface can reach routed destinations if the management VRF has the proper route. Option C is incorrect because the management VRF already exists. Option D is incorrect because ping is supported.

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. There are more than 8 bits in the host portion. The subnet mask 255.255.254.0 converts to a /23 prefix because the first two octets, 255.255, represent 16 network bits, and the third octet value 254 represents seven more network bits. That gives 23 network bits total. IPv4 addresses are 32 bits long, so 32 minus 23 leaves 9 host bits. Since 9 is more than 8, option B is correct. HPE Aruba Networking documentation uses prefix length as CIDR subnet-mask notation and supports IPv4 prefix lengths from 1 to 32, matching the /23 interpretation. Option A is incorrect because “10.64” alone is not the full network portion for a /23 network. The actual network range is 10.64.0.0/23. Option C is incorrect because the broadcast address for 10.64.0.0/23 is 10.64.1.255, not 10.64.0.240. Option D is incorrect because 255.255.254.0 is /23, not /25.

The correct answer is C. Automates root cause analytics. HPE Aruba Networking AOS-CX documentation describes the Network Analytics Engine, or NAE, as a framework within AOS-CX switches that automates the detection of issues and automates root cause analysis. NAE agents monitor switch resources, events, configuration, protocol states, and other operational data to help identify issues faster. This helps administrators move from manual troubleshooting to analytics-driven troubleshooting directly on the switch. Option A is not the best answer because NAE is not simply a feature that automatically creates tech-support diagnostic files. Option B is incorrect because automated configuration backups are not the main purpose of NAE. Option D is incorrect because NAE does not primarily create support events in the HPE Aruba Networking Support Portal. Its purpose is local switch analytics, issue detection, and root cause analysis. Therefore, the best description is that NAE automates root cause analytics.

The correct answer is D. Dynamic Segmentation. HPE Aruba Networking describes Dynamic Segmentation as an identity-based access control solution for Zero Trust and SASE security from edge to cloud. Dynamic Segmentation applies policy based on the identity and role of users and devices, rather than relying only on physical network location, VLAN placement, or static port configuration. This is important in Zero Trust because no user, device, or network segment should be automatically trusted. Access should be continuously controlled and limited to only the resources required. HPE Aruba Networking documentation also explains that Dynamic Segmentation establishes least-privilege access by segmenting traffic based on identity and associating consistent role-based access policies across wired, wireless, and WAN networks. The other options are not the best answer. Virtual Switching Framework and Virtual Switching Extension are resiliency or virtualization technologies, not the core Zero Trust/SASE policy feature. Network Analytics Engine is useful for monitoring, automation, and troubleshooting, but Dynamic Segmentation is the security framework feature directly tied to Zero Trust and SASE.

The correct answer is D. show system. HPE Aruba Networking AOS-CX documentation describes the show system command as displaying general status information about the system. The official command example includes fields such as Vendor, Product Name, and Chassis Serial Nbr. These fields provide the switch make, model/product name, and serial number directly in the CLI session. Option A is not the best answer because show support-information is intended for collecting broader support and diagnostic information, not the most direct command for viewing the switch identity. Option B is not the normal user command for displaying switch make, model, and serial number. Option C is incorrect because configuration output shows switch configuration, not necessarily the hardware identity information requested. Therefore, the direct command to display make, model, and serial number is show system.

The correct answer is D. If the ZTP operation detects that the switch configuration is different from the factory-default configuration, the ZTP operation ends. HPE Aruba Networking AOS-CX documentation explains that the ZTP process starts when the switch boots with the factory-default configuration. During the ZTP process, if the switch detects that its configuration is different from the factory-default configuration, the ZTP operation ends and the switch must be configured at the installation site. This directly addresses the customer’s concern: ZTP is intended for new or factory-default switches, and it should not overwrite or change switches that have already been manually configured or deployed. Option A is incorrect because the end condition is not based on a TFTP server detecting a serial-number configuration file. Option B is incorrect because being added to Central is not the stated stopping condition. Option C describes force provisioning, which can intentionally start provisioning behavior, but it does not address the concern about protecting already configured switches.

The correct answer is D. To configure a physical interface as a Layer 3 routed port on an HPE Aruba Networking CX 6300 switch, the interface must be placed in routing mode and assigned an IP address directly. This creates a routed interface rather than a bridged Layer 2 port. HPE Aruba Networking AOS-CX examples show routed physical interfaces configured with routing, followed by an ip address, and then no shutdown. The same examples contrast this with Layer 2 ports, which use no routing and VLAN commands such as vlan access or vlan trunk. Option A is incorrect because no routing makes the interface a Layer 2 interface, so assigning an IP address directly is not the correct routed-port configuration. Options B and C are incorrect because vlan access 1 configures the port as a bridged access port. The requirement specifically says the switch should be configured without a bridged port, so the correct CX configuration is a routed physical interface using routing with the IP address configured directly on the port.

The correct answer is A. Must be manually configured. HPE Aruba Networking AOS-CX documentation states that static routes are manually configured in the routing table. A static route defines a destination network and the next-hop address or exit interface that the switch should use to forward traffic. Static routes are useful in small, simple, or predictable networks because they are straightforward and do not require a dynamic routing protocol to exchange route information. Option B is incorrect because automatically learned routes are associated with dynamic routing protocols, such as OSPF or BGP, not static routing. Option C is incorrect because static routes usually have low processing overhead compared to dynamic routing protocols, since the switch does not need to run neighbor discovery, exchange routing updates, or calculate topology changes. Option D is incorrect because static routes do not automatically respond to network topology changes unless supported by an additional tracking mechanism or manually changed by an administrator. Therefore, the defining characteristic of a static route is manual configuration.

The correct answers are B and E. On HPE Aruba Networking AOS-CX switches, configuration changes are made to the running configuration. To ensure those changes persist after a reboot, the running configuration must be saved to the startup configuration. HPE Aruba Networking documentation states that write memory saves the running configuration to the startup configuration and is an alias of copy running-config startup-config. The copy running-config startup-config command copies the current running configuration into the startup configuration, overwriting the existing startup configuration if one is already present. Option A, commit confirm, is not the AOS-CX command used to save the current running configuration for reboot persistence. Option C, save force, is not the correct AOS-CX command for this task. Option D is the reverse operation; copy startup-config running-config would copy the saved startup configuration into the active running configuration rather than saving current changes for the next reboot. Therefore, the two valid commands are write memory and copy running-config startup-config.

The correct matches are based on how SNMP monitoring works in an HPE Aruba Networking environment. A managed device is the network device being monitored, such as a switch, router, firewall, controller, or access point. HPE Aruba Networking documentation describes SNMP as a protocol used by network management systems to monitor network-attached devices. The SNMP agent is the software function on the managed device that collects local device information and communicates status, statistics, and configuration-related information to the management system. The SNMP manager is the network management system that queries devices, receives information, and may modify supported device parameters. The Management Information Base, or MIB, is the structured database of object identifiers used to represent device status, counters, statistics, and configuration information. HPE Aruba Networking AOS-CX monitoring documentation points administrators to the SNMP/MIB Guide for configuring SNMP so a device can be monitored from a network management system.

The correct answer is B. A VLAN range can be created with the syntax vlan 100-110. HPE Aruba Networking AOS-CX documentation defines the VLAN creation command as vlan < VLAN-LIST > . The VLAN list can contain a single VLAN ID or multiple VLAN IDs separated by commas, dashes, or both. The documentation gives examples such as vlan 2-8,10, which creates VLANs 2 through 8 and VLAN 10. Therefore, vlan 100-110 is the correct AOS-CX syntax for creating a range of VLANs. Option A is incorrect because a colon is not the documented range separator for VLAN creation. Options C and D are incorrect because newly created VLANs are enabled by default. HPE Aruba documentation states that the VLAN is enabled by default and that the shutdown command is used to disable a VLAN. Therefore, no additional enable or no shutdown command is required after creating a VLAN.

The correct answer is D. The VSF stack remains fully operational. The output shows the VSF topology is a ring. In a ring topology, each member has an alternate VSF path through another member. If only the VSF link between members 1 and 2 is disconnected, members 1 and 2 can still communicate through member 3: member 1 connects to member 3, and member 3 connects to member 2. This changes the physical topology from a ring to a chain, but it does not split the stack. HPE Aruba Networking VSF documentation states that a ring topology provides resiliency against link and member hardware failures because any single failure does not isolate the remaining stack members from each other, and Aruba strongly recommends ring topology where possible. Options A, B, and C are incorrect because a single link failure in this three-member ring does not isolate the conductor, standby, or member. Split detection using the management interface would become relevant only if the stack actually split into separate fragments.

The correct answer is B. The switch control plane is shared. HPE Aruba Networking documentation explains that Virtual Switching Framework, or VSF, stacks multiple individual switches into a single logical device using standard Ethernet links. Once the VSF stack is formed, the interconnected switches operate as one virtual switch with a single control plane. HPE Aruba documentation also describes VSF as providing a single point of management access with a shared control plane across all stack members. Option A is incorrect because member IDs are part of the VSF configuration and may be assigned or changed during stack setup. Option C is incorrect because VSF is not universally limited to two members; supported stack size depends on the switch family and software support. Option D is incorrect because an independent management plane describes VSX more than VSF. HPE’s VSF-versus-VSX comparison identifies VSF as having a single management plane, while VSX has dual management planes.

The correct answers are A and E. HPE Aruba Networking AOS-CX switches support RADIUS and TACACS+ for controlling administrative access. HPE Aruba Networking security documentation describes remote AAA authentication and authorization using RADIUS or TACACS+ servers. These protocols allow administrative logins and command authorization to be managed centrally instead of relying only on local switch users. RADIUS is commonly used for authentication, authorization, and accounting services, while TACACS+ is especially useful for administrative access control because it can provide command authorization and accounting. LDAP, Diameter, and SAML are not the correct answers for the AOS-CX administrative access control protocols listed in this question. LDAP is a directory protocol, Diameter is an AAA protocol used in other service-provider contexts, and SAML is commonly used for web-based single sign-on, but they are not the two AOS-CX switch administrative access protocols being tested here. ( arubanetworking.hpe.com )

The correct matches are based on the high-availability technologies supported by each CX switch family in the answer list. HPE Aruba Networking AOS-CX VSF documentation states that VSF supports up to 8-member stacks for CX 6200F devices and up to 10-member stacks for CX 6300 devices. That makes CX 6200 match “VSF - 8 members” and CX 6300 match “VSF - 10 members.” HPE Aruba Networking documentation for VSX support lists the CX 8100 as a VSX-supported switch series, so CX 8100 matches “VSX.” The CX 6100 and CX 4100i do not match the listed VSF 8-member, VSF 10-member, or VSX choices. Although AOS-CX VSF documentation lists other VSF limits for some platforms, the choices provided only include VSF-8, VSF-10, VSX, and None; therefore, CX 6100 and CX 4100i map to “None” in this drag-and-drop question.

The correct answer is D. A DHCP server needs to be configured with the required options. HPE Aruba Networking AOS-CX documentation for the 4100i, 6000, and 6100 switch series states that ZTP supports standards-based Zero Touch Provisioning and that the DHCP server must be configured to provide the required ZTP server information. The documentation lists supported DHCP options, including vendor-specific option 43, and explains that the switch contacts a DHCP server when it boots from a factory-default configuration. HPE Aruba documentation also explains that a trusted-network ZTP setup uses a TFTP server for configuration and image files, with the DHCP server providing the required information for the switch to find those files. Therefore, DHCP options are the required foundation for ZTP. Option A is misleading because ZTP is tied to a factory-default boot state, not simply being enabled on the management interface. Option B is incorrect because SCP is not the documented ZTP download method here. Option C is incorrect because the guide describes TFTP, not SFTP, for this ZTP workflow.

The correct answer is C. The existing 5406R configuration uses an LACP trunk, with VLANs 100, 200, and 300 tagged and VLAN 50 untagged. The equivalent HPE Aruba Networking AOS-CX configuration is to create a LAG, enable LACP using lacp mode active, allow the tagged VLANs on the trunk, and configure VLAN 50 as the native VLAN. In AOS-CX, the vlan trunk native < VLAN-ID > command assigns the native VLAN to the trunk or LAG interface. Native VLAN traffic is untagged unless native VLAN tagging is specifically configured. HPE Aruba documentation also shows the command syntax for assigning native VLANs to LAG interfaces and the use of vlan trunk allowed for the VLANs carried on the trunk. Option A and option B are incorrect because lacp mode enable and the shown native VLAN syntax are not the correct CX syntax. Option D is less correct because VLAN 50 is the native untagged VLAN and does not need to be included with the tagged VLAN list. The correct CX equivalent is therefore LACP active, allowed VLANs 100, 200, and 300, and native VLAN 50.

The correct answer is B. Connect the USB Bluetooth adapter to the switch’s USB-A port. HPE Aruba Networking CX 8100 installation documentation states that the Aruba CX mobile app and Aruba USB Bluetooth adapter enable switch configuration from a mobile device. It also identifies the CX 8100 front-panel USB-A auxiliary port as the port used for file management, switch software downloads, or Aruba accessories. Therefore, for an Android mobile setup workflow using the Aruba CX mobile app, the USB Bluetooth adapter connects to the switch’s USB-A auxiliary port. The USB-C port on the CX 8100 is a serial console port, not the port for the USB Bluetooth adapter. Connecting the Android phone directly to the USB-C console port is not the Bluetooth mobile-app method. Connecting the phone to the management port with an RJ-45 adapter is also not the recommended mobile-app setup method. The supported mobile method is the Aruba CX mobile app through the USB Bluetooth adapter.

The correct answer is B. HPE Aruba Networking Central has been manually disabled on the switch. The key line in the output is Central admin state : disabled. HPE Aruba Networking AOS-CX documentation for the show aruba-central command provides an example of a switch when Aruba Central is disabled, showing Central admin state : disabled, Central connection values as N/A, and Central support mode as disabled. This indicates that the switch’s Central administrative state is disabled, so it is not attempting to connect to HPE Aruba Networking Central. Option A is incorrect because the VRF for connection : N/A value is a result of Central being disabled, not proof that the management VRF does not exist. Option C is incorrect because this command output does not report support-contract validity. Option D is incorrect because the factory-default Central behavior is not what is being shown; the output specifically reflects Central being disabled. Therefore, the correct interpretation is that Central has been manually disabled on the switch. ( arubanetworking.hpe.com )

The correct answer is B. LLDP. Link Layer Discovery Protocol, or LLDP, is the most useful feature for building a physical connectivity diagram because it helps identify directly connected neighboring devices and their interface relationships. HPE Aruba Networking Central documentation notes that LLDP is enabled by default on switches and is used to display AOS-CX switches in topology views. Aruba Central’s topology feature provides a graphical representation of the site, including the network layout and device details. This makes LLDP directly relevant to discovering and documenting physical network connections. Option A, MSTP, is a spanning tree protocol used to prevent Layer 2 loops and manage redundant paths, not to document physical connectivity. Option C, ZTP, is used for automated device provisioning, not topology discovery. Option D, L2TP, is a tunneling protocol and is unrelated to creating physical connectivity diagrams. Therefore, LLDP is the best answer because it provides neighbor discovery information that can be used to map how network devices are physically connected.

The correct answer is B. 2. The diagram shows two VLANs: VLAN 10 and VLAN 20. In Ethernet switching, each VLAN represents a separate Layer 2 broadcast domain. HPE Aruba Networking documentation defines a VLAN as a single Layer 2 network that can be partitioned to create multiple distinct broadcast domains, isolated from each other unless traffic passes through a router or Layer 3 interface. In this diagram, PCs A and B are in VLAN 10, so they share one broadcast domain. PCs C and D are in VLAN 20, so they share a second broadcast domain. The Layer 3 switch has SVIs for VLAN 10 and VLAN 20, which allow routing between the two VLANs, but the SVIs do not merge the broadcast domains. They provide Layer 3 gateways for each VLAN. Therefore, the number of broadcast domains is based on the number of VLANs shown, not the number of PCs, switch links, or SVIs. Since there are two VLANs, there are two broadcast domains.