HP Updated HPE7-A01 Exam Questions and Answers by adonis

The Inter-Switch Link (ISL) is a fundamental component of an AOS-CX Virtual Switching Extension (VSX) pair. It serves both as a Layer 2 forwarding path between the VSX peers and as the principal control-path channel used to synchronize operational state between the two switches.

HPE Aruba Networking explicitly identifies the MAC table as one of the data structures synchronized across the VSX ISL. Other synchronized information includes the ARP table, LACP state for VSX LAGs, and MSTP state. This synchronization enables both independent VSX switches to maintain consistent forwarding information and support resilient multi-chassis LAG operation. Aruba Networking

The architecture is important because VSX does not merge both switches into a single control plane. Each peer retains its own control plane, while selected operational databases and protocol states are synchronized through the ISL. HPE ' s Campus Design guidance similarly states that VSX peers synchronize MAC, ARP, STP, and other state tables across the ISL. Aruba Networking

An SVI is configuration rather than the requested synchronized forwarding-table information. UDLD is a link-detection protocol, and RPVST+ is not the answer identified in Aruba ' s ISL synchronization list.

Study Guide Topics: AOS-CX VSX, Inter-Switch Link, VSX Synchronization, MAC Address Tables, ARP Synchronization, LACP State, MSTP State.

In MSTP, root-bridge priority is configured per MST instance , not directly per individual VLAN. Since Core-1 already has spanning-tree instance 1 priority 0, Core-1 is intended to become the preferred root for MST instance 1 . To make VLAN 10 use that spanning-tree topology, VLAN 10 must therefore be mapped into instance 1 with:

spanning-tree instance 1 vlan 10

HPE Aruba Networking documents this exact syntax and states that the command either creates an MST instance with the specified VLAN mapping or maps a VLAN to an existing instance. Aruba Networks

This is how MSTP provides VLAN load balancing. Different VLANs can be assigned to separate MST instances, and each instance can have a different root bridge. For example, VLAN 10 can belong to instance 1 with Core-1 as root, while VLAN 20 can belong to another instance whose root priority favors Core-2 . Aruba specifically describes this ability to forward different VLAN groups along separate paths as an MSTP load-sharing mechanism. Aruba Networks

Options B, C, and D are not the appropriate AOS-CX MSTP VLAN-to-instance mapping syntax. The required command is therefore A .

Study Guide Topics: MSTP, MST Instances, VLAN-to-Instance Mapping, Root Bridge Priority, VLAN Load Balancing, AOS-CX Spanning Tree.

This is because option C shows how to create a single group in Central with different configuration methods defined for each device type. For example, you can create a group with the name Group1, and within this group, you can enable template-based configuration method for switches and UI-based configuration method for Instant APs and Gateways. Aruba Central identifies both these groups under a single name (Group1). If a device type in the group is marked for template-based configuration method, the group name is prefixed with TG (TG Group1). You can use Group1 as the group ID for workflows such as user management, monitoring, reports, and audit trail2.

https://www.arubanetworks.com/techdocs/central/latest/content/nms/groups/abt-groups.htm 2: https://www.arubanetworks.com/techdocs/central/latest/content/nms/groups/groups.htm

The correct mechanism is RADIUS Change of Authorization (CoA). ClearPass Policy Manager can dynamically alter or terminate an already authenticated network session by sending a RADIUS dynamic-authorization message to the network access device. Aruba defines dynamic authorization as the capability to modify a user ' s authorization while the session is active, including disconnecting the session. Aruba Networking

For guest accounts, ClearPass can associate an expiration time or permitted access duration with the account. When the configured expiration condition requires the guest to be logged out, ClearPass can issue a RADIUS Disconnect-Request to the NAS, such as an Aruba wireless controller or access infrastructure. Aruba ' s ClearPass Guest documentation specifically describes the Disable and logout behavior as disabling further authorization and using a RADIUS Disconnect-Request for matching active sessions. Aruba Networking Once disconnected, the client must go through the applicable authentication and authorization process again before network access can resume.

An Authorization Profile defines what access should be granted but does not itself provide the dynamic session-disconnect mechanism. Active Directory session timeout and Wi-Fi Sense do not fulfill this ClearPass enforcement function.

Study Guide Topics: ClearPass Policy Manager, AAA, Guest Access, RADIUS Dynamic Authorization, Change of Authorization (CoA), Disconnect-Request, Session Enforcement.