Pass the HP Aruba Certified Switching Associate (ACSA) V1 HPE6-A86 Questions and answers with CertsForce

The correct answer is A. Change the hash algorithm. In a LAG, traffic is not normally split packet-by-packet across every member link. Instead, the switch uses a hashing method to choose which physical interface in the aggregate should transmit each flow. The output shows that the current hash is l3-src-dst, which means the load-balancing calculation uses Layer 3 source and destination IP information. If many flows share the same source and destination IP pair, traffic can be unevenly distributed, causing one link to become congested while another link is lightly used. HPE Aruba Networking AOS-CX documentation states that the lacp hash command controls the selection of an interface in an aggregate group and supports Layer 2, Layer 3, and Layer 4 source/destination hash options. Changing the hash algorithm, for example to include Layer 4 source and destination TCP/UDP ports, can improve distribution when Layer 3 values alone are not diverse enough. Changing LACP mode, configuring static LAG, or changing LACP heartbeat rate would not directly fix uneven traffic distribution.

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 D. The link on interface 1/1/16 is not established. The output clearly states Interface 1/1/16 is down, Admin state is up, and State information: Waiting for link. This means the port is enabled administratively, but the physical link is not up. HPE Aruba Networking AOS-CX show interface documentation displays these fields to show operational and administrative interface status, including examples where the interface is down while the admin state remains up. Option A is incorrect because the output says qos trust dscp, which trusts Layer 3 DSCP markings, not Layer 2 CoS markings. Option B is incorrect because Admin state is up; an administratively disabled interface would be shut down. Option C is incorrect because the output shows VLAN Mode: native-untagged and Native VLAN: 10; native VLAN 10 is untagged, while the allowed VLAN list shows VLANs permitted on the trunk. Since the port is waiting for link, the immediate verified issue is that the physical link is not established

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. Commands - show interface error-statistics. Because the users and the document management server are in the same subnet, traffic is switched locally rather than routed across multiple Layer 3 hops. If packet loss is suspected during file uploads, the most useful verification is to inspect interface error counters on the switch ports involved. HPE Aruba Networking AOS-CX documentation includes the show interface < IFNAME > error-statistics command, which displays interface error statistics such as receive and transmit errors, CRC/FCS errors, drops, runts, giants, and related counters. HPE Aruba Networking Central documentation states that the Commands tab can run troubleshooting commands on managed devices and show the output in the Device Output section. A cable test may help detect physical cabling faults, but it does not directly confirm packet loss counters. Traceroute is less useful within the same subnet. Ping can show reachability loss, but interface error statistics provide better evidence of switch-port packet errors causing performance problems.

The correct answer is A. A public CA signed certificate should be deployed. The browser warning appears because the captive portal is presenting a self-signed certificate that the client device does not trust. For guest access, client devices are usually unmanaged and cannot be expected to already trust an internal or self-signed certificate authority. HPE Aruba Networking documentation for captive portal deployments recommends that production environments obtain and install a certificate issued for the site or domain by a well-known Certificate Authority. This avoids browser trust warnings and gives guest users confidence that they are connecting to the correct portal. Option B is incorrect because disabling HTTPS and using HTTP would reduce security and expose portal traffic. Option C may work only for managed devices where the self-signed or private CA can be pushed into the trust store, but that is not practical for open wired guest access. Option D can be valid for internal managed users, but for guests, a public trusted CA certificate is the best answer.

The correct answer is A. The VSF ports automatically forward the traffic for configured VLANs. In HPE Aruba Networking CX VSF, the VSF link ports are dedicated stack-fabric interfaces between VSF members. They are not configured like normal access or trunk ports for user VLAN forwarding. HPE Aruba Networking Central documentation for AOS-CX ports and LAGs notes that VLAN mode options such as access or trunk are not visible for VSF ports, which confirms that VSF ports are not manually configured as normal VLAN trunks. Once the VSF stack is formed, the stack operates as one logical switch, and the VSF links carry the necessary internal stack traffic automatically, including traffic associated with configured VLANs. Option B is incorrect because you do not configure VSF ports as trunk ports with vlan trunk allowed all. Option C is incorrect because vsf-sync is not required for VLAN forwarding across VSF links. Option D is incorrect because VLAN 4095 is not manually configured on VSF links for this purpose.

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 D. By default, all VLAN traffic is tagged to traverse a trunk link except the native VLAN. In HPE Aruba Networking AOS-CX, a trunk interface can carry traffic for multiple VLANs, and VLAN tagging is used to identify traffic from different VLANs across the trunk. However, the native VLAN is the exception. HPE Aruba Networking documentation explains that the native VLAN is the VLAN to which incoming untagged traffic is assigned, and by default VLAN 1 is assigned as the native VLAN for trunk interfaces. This means normal trunk behavior is that VLAN traffic is tagged, while native VLAN traffic can be untagged unless configured otherwise. Option A is incomplete because it ignores native VLAN behavior. Option B is incorrect because the native VLAN concept applies to trunk interfaces generally, not only when a port is part of a LAG. Option C is incorrect because VLAN trunking applies to Layer 2 interfaces, not routed ports. Therefore, the default trunk behavior is tagged VLAN traffic except for the native VLAN.