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| Section | Weight | Objectives |
|---|---|---|
| Create the implementation plan for the wired network solution | 10-18% | - HPE switching portfolio and solution mapping - Design-based implementation planning |
| Install and configure the wired network solution | 33% | - QoS configuration and concepts - Layer 2 technologies (VLANs, STP, trunks) - Layer 3 services and routing (OSPF/BGP concepts, SVIs, overlays) - Integration with Aruba ecosystem (Central, ClearPass concepts) - Switch provisioning in Aruba Central - CLI configuration of Aruba CX switches - Multicast configuration concepts - Security features (802.1X, ACLs, DHCP snooping, DAI) |
| Troubleshoot the wired network solution | 27% | - Root cause analysis and remediation planning - Performance troubleshooting (QoS, device, configuration issues) - Network failure identification (VLAN, IP, hardware, ports) |
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NEW QUESTION # 120
Your customer's CX switches are managed in HPE Aruba Networking Central. If a VSX primary switch is accidentally powered off, which alert will be triggered?
Answer: B
Explanation:
In the HPE Aruba Networking Central monitoring framework, the platform maintains a persistent management connection (via WebSockets) to every managed AOS-CX switch.
* The Connectivity Heartbeat: Central continuously monitors the status of this connection. If a switch loses power, its management processor stops functioning immediately. After a short timeout period where the heartbeat is not received, Central marks the device as " Down " and triggers the Switch Disconnected alert.
* VSX Architecture in Central: It is important to note that even though two switches are in a VSX (Virtual Switching Extension) pair, Aruba Central treats them as individual managed entities for connectivity purposes. If the Primary switch goes offline, Central sees that specific device ' s management tunnel drop.
* Evaluating Other Options:
* Option A (Switch Reboot): A reboot alert is typically generated when a switch gracefully restarts or when it checks back into Central after an unexpected power cycle. If the switch remains powered off, it is simply " Disconnected. "
* Option B (Switch Stack Conductor Change): This is a specific alert for VSF (Virtual Switching Framework) stacks (like the 6200 or 6300 series). In VSF, a failure of the master results in a role change. In VSX, there is no " Conductor " role; there is a Primary and Secondary, and they are not managed as a single " stack " object in the same way VSF is.
* Option D (Switch STP Root Change): While a VSX Primary failure might trigger an STP re- election if that switch was the Root Bridge, the direct management alert from Central regarding the hardware state is " Switch Disconnected. "
NEW QUESTION # 121
A customer has asked if their new CX switches will support their legacy management system. Which of these would this include? (Choose two.)
Answer: B,C
Explanation:
AOS-CX is a modern, database-driven operating system, but it is built with extensive backward compatibility to ensure it fits into established enterprise ecosystems.
* CLI (Command Line Interface) (Option A): This is the most traditional form of switch management.
AOS-CX provides a robust CLI accessible via Console, Telnet, or SSH. While the syntax is " industry- standard " (similar to Cisco or older ArubaOS-Switch), it remains a " legacy " pillar that almost all existing management systems (like Rancid, SolarWinds, or custom scripts) use for configuration and state collection.
* SNMP (Simple Network Management Protocol) (Option E): SNMP is the universal " legacy " language for network monitoring. AOS-CX supports SNMP v1, v2c, and v3. Legacy Management Systems (NMS) rely on SNMP MIBs (Management Information Bases) to pull statistics about port utilization, temperature, and errors.
* Modern vs. Legacy:
* REST API (Option B): This is a modern, programmable interface where every command in the switch can be executed via a JSON-based web call. Legacy systems typically do not support this.
* NAE (Option C): The Network Analytics Engine is unique to AOS-CX and uses Python scripts for local monitoring. This is a " Next-Gen " feature.
* HTTPS (Option D): While web interfaces have been around a while, the modern AOS-CX Web UI is a sophisticated tool built on top of the REST API, and it is generally considered a primary management method for the " Modern " era rather than a " Legacy Management System " integration point like SNMP.
NEW QUESTION # 122
You ' ve rebooted s-agg2 in a VSX configuration in an attempt to live-upgrade the cluster, and then you see this condition:
What would be the correct way to live-upgrade the VSX cluster?
Answer: C
Explanation:
Comprehensive Detailed Explanation:
For live upgrading a VSX cluster, the correct procedure is to use the vsx update-software option, which allows in-service software upgrade (ISSU) with minimal disruption by upgrading switches one at a time while maintaining synchronization.
issu update-software is not a recognized command in Aruba CX.
Reloading the primary first risks service disruption.
Compatibility mode is not required prior to reboot.
References:
Aruba VSX Upgrade Procedures Guide
HPE Aruba VSX Best Practices for Software Upgrades
ArubaOS-CX VSX Documentation
NEW QUESTION # 123
Which statement is valid when enabling ARP protection features on an HPE Aruba Networking CX switch?
Answer: B
Explanation:
Dynamic ARP Protection (DAP) is a security feature used to intercept and validate ARP packets in a network to prevent " man-in-the-middle " attacks like ARP spoofing.
* Validation Source: For the switch to know if an ARP packet is legitimate, it must check the sender ' s IP and MAC address against a trusted database.
* Dynamic vs. Static: * In most modern environments, the switch builds this database automatically by using DHCP Snooping . When a client gets an IP from a DHCP server, the switch records the binding.
* Static Environments (The Solution): If you have servers or devices with static IP addresses (no DHCP server), DHCP snooping will have no record of them. To prevent these legitimate devices from being blocked by ARP protection, you must manually configure Static IP-to-MAC bindings .
* Why Option D is Correct: It correctly identifies that the feature is flexible enough to support non- DHCP environments through manual configuration.
* Why others are incorrect: * Option A: While highly recommended, a DHCP server is not strictly required because of the static binding fallback.
* Option C: Simply enabling the features isn ' t enough; you must also consider untrusted vs.
trusted ports. Furthermore, " full information " is a bit of an overstatement, as static devices still need manual intervention.
NEW QUESTION # 124
Which CLI command verifies the status of active spanning-tree instances?
Answer: A
Explanation:
The show spanning-tree command provides details on STP topology, helping identify performance issues caused by blocked or redundant links.
NEW QUESTION # 125
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