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| Section | Weight | Objectives |
|---|---|---|
| Manage and optimize the wired network solution | - Network monitoring and management - Security management - QoS configuration and optimization - Performance optimization across multiple sites (branches, edges, core networks) | |
| Troubleshoot the wired network solution | - Analyze network output and logs - Diagnose and resolve connectivity issues - Security troubleshooting - Troubleshoot configuration and operational problems | |
| Create the implementation plan for the wired network solution | 18% | - Given design or customer scenarios, formulate appropriate implementation plans considering network scalability, performance, and redundancy - Network topology design and hardware/software component selection - Understand the HPE Aruba networking switching portfolio |
| Install and configure the wired network solution | 33% | - Configure VLANs and port settings - Layer 2 and Layer 3 feature configuration - Verify initial connectivity across the network infrastructure - Apply firmware updates - Deploy switching hardware - Establish management interfaces |
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NEW QUESTION # 98
You have recently configured WMM to DSCP mapping on your HPE Aruba Networking APs and want to make sure that only the correct traffic is prioritized on the wired network. What should you configure to achieve this? (Choose two.)
Answer: B,E
Explanation:
In an end-to-end Quality of Service (QoS) design, the goal is to maintain the priority of traffic as it transitions from the wireless medium (WMM) to the wired infrastructure (Ethernet).
* WMM to DSCP Mapping: Aruba APs map Wireless MultiMedia (WMM) Access Categories (like Voice or Video) to specific DSCP (Differentiated Services Code Point) values in the IP header before forwarding the frames onto the wired network.
* The Concept of " Trust " : By default, many switches operate in a " trusted " or " untrusted " mode. If a port is untrusted, the switch will strip or ignore any DSCP markings on incoming packets and remark them to 0 (Best Effort). To prevent this, the AOS-CX switch must be configured to trust the incoming DSCP markings.
* Applying Trust via Interface (Option B): On the physical ports where APs are connected, you must apply the command qos trust dscp. This ensures that as the AP sends traffic into the switch, the switch honors the DSCP values assigned by the AP.
* Applying Trust via User-Role (Option A): In modern Aruba " Colorless Port " architectures, switches often use User-Based Tunneling (UBT) or local roles assigned via ClearPass. If the AP itself is assigned a " User-Role " upon connection, that role can include a QoS policy that specifies DSCP trust.
This is the preferred method for dynamic environments because the security and QoS policies follow the device regardless of which physical port it uses.
* Why other options are incorrect:
* Option C: LLDP-MED is used to negotiate parameters (like Voice VLAN), but it doesn ' t provide the granular " trust " mechanism required for WMM-to-DSCP mapping.
* Option D: Colorless ports are a deployment method for roles, but " Colorless ports " is not a configuration command that handles QoS prioritization itself.
* Option E: AOS-CX does not typically utilize a " global " trust command; trust is applied at the ingress point (interface or role) to maintain security and control.
NEW QUESTION # 99
An administrator will be replacing a campus switching infrastructure with AOS-CX switches that support VSX capabilities. The campus involves a core, as well as multiple access layers. Which feature should the administrator implement to allow both VSX-capable core switches to process traffic sent to the default gateway in the campus VLANs?
Answer: C
Explanation:
Understand the Active Gateway principle
In a VSX system, active gateway provides redundant default gateway functionality for the end- hosts. The default gateway of the end-host is automatically handled by both the VSX systems.
NEW QUESTION # 100
An administrator is implementing a multi-area OSPF network. The network contains a backbone (area 0) and two other areas (1 and 2) connected to ABRs in the backbone The network has one routing switch connected to a service provider located in area 2 Which network design would minimize the number of routes in the routing switches' link state databases (LSDBs) while still allowing full connectivity?
Answer: C
NEW QUESTION # 101
Your customer's CX switches are managed in HPE Aruba Networking Central. They have recently deployed new cabling to some desks and want to be notified of any physical cabling issues. Which alerts should you enable? (Choose two.)
Answer: D,E
Explanation:
To detect physical cabling issues, you need alerts that indicate errors caused by bad terminations, damaged cables, or mismatched capabilities. The most relevant alerts are:
Switch Port Input Errors -- catches CRC errors, alignment errors, and other indicators of cable faults.
Switch Port Duplex Mode -- detects duplex mismatches, a common symptom of wiring or negotiation problems.
These two alerts provide the clearest visibility into physical-layer cabling issues.
NEW QUESTION # 102
Refer to the exhibit:
According to the HPE Aruba Networking VSX best practices, what would need to be changed in the configuration?
Answer: B
Explanation:
In the exhibit, the CX8325 switch ports 1/1/47 and 1/1/48 are connected in a VSX setup. According to Aruba VSX best practices, ports on the CX8325 switch that serve as ISL or VSX interconnects should use SFP28 optics for 25Gbps links. If SFP56 optics are used, it would be incorrect because CX8325 ports are designed to support SFP28 modules for these speeds.
CX6300 ports use SFP56 or QSFP28 depending on model and link speed.
CX8300 series ports designed for QSFP28 for higher speeds.
Hence, the best practice is to use SFP28 on CX8325 for the interconnect links.
References:
Aruba VSX Configuration and Best Practices Guide
Aruba CX 8325 Hardware and Optics Documentation
Aruba Networking Recommended Transceiver Matrix
NEW QUESTION # 103
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