Aruba Certified Switching Professional

Using object groups consumes the same resources as specific ACE entries. This means that regardless of whether you use object groups or individual Access Control Entries (ACEs), the resource consumption in TCAM (Ternary Content Addressable Memory) remains the same. This is a specific behavior of ACL implementation in certain network systems, ensuring resource usage efficiency is consistent.

On AOS-CX switches, egress queue shaping allows the definition of a maximum traffic rate and burst size for a queue. This means you can control the rate at which queued traffic is sent out, smoothing out bursts and controlling bandwidth allocation to prevent high-priority traffic from overwhelming other queues. This corresponds with option A, which states that only a traffic rate and burst size can be defined for a queue.

The AOS-CX 6400 is the correct solution because it is a modular switch that supports virtual switching technologies and high-availability with dual-control planes. It is specifically designed for access and aggregation layers in network environments, which matches the requirement of replacing the antiquated access layer solution with a modular one. The AOS-CX 6400 also supports technologies like VSX, which provides the necessary high-availability and dual-control plane functionality.

The purpose of the configured command 'radius-server tracking user-name monitor password plaintext aruba123' on AOS-CX switches is to speed up the AAA authentication process. RADIUS server tracking helps ensure that the switch is aware of the availability of the RADIUS servers. If a server becomes unavailable, the switch can quickly switch to an available server, minimizing delays and speeding up the authentication process.

User-based tunneling (UBT) is a suitable solution for this scenario. UBT allows traffic from wired and wireless clients to be tunneled back to a central mobility controller, enabling the application of consistent security and firewall policies across both types of traffic. This approach works well for integrating the AOS-CX switches with a third-party AAA solution while maintaining uniform policy enforcement.