ACA Study Guide 2026

Aruba SD-WAN uses IPSec tunnels to encrypt traffic traversing public Internet connections, creating a secure overlay network that protects branch communications regardless of the underlying transport.

A routing protocol like OSPF exchanges topology information between routers, while a routed protocol like IPv4 is the actual payload being forwarded.

Role-Based Access Control (RBAC) is a method of restricting network access based on the roles of individual users within an organization. Instead of assigning permissions directly to users, permissions are assigned to specific roles, and users are then assigned to those roles. This simplifies management and ensures users only have access to the resources necessary for their job functions.

Aruba Central RF Health and AirWave VisualRF provide floor plan-based RF visualization to identify coverage gaps, interference, and channel planning issues.

A default route matches any destination with no more-specific route in the routing table and typically points traffic toward the internet or upstream router.

Aruba Instant Access Points (IAPs) are designed to operate without a dedicated hardware controller. They form a virtual controller cluster, where one IAP acts as the primary controller, simplifying deployment and management for smaller to medium-sized networks. This 'controller-less' architecture reduces complexity and cost compared to traditional controller-based solutions.