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HP HPE7-A08 Exam Overview:

Certification Vendor:Hewlett Packard Enterprise (HPE)
Exam Name:HPE Aruba Networking Switching Professional Exam
Exam Number:HPE7-A08
Passing Score:65%
Available Languages:English
Related Certifications:HPE Aruba Networking Certified Expert - Switching
Exam Price:$350 USD
Real Exam Qty:75
Certificate Validity Period:3 years
Exam Format:Multiple choice, Multi-select, Scenario-based
Exam Duration:120 minutes
Recommended Training:Official HPE7-A08 Study Guide
Implementing Aruba AOS-CX Switching (Rev 24.31)
Exam Registration:HPE Certification & Pearson VUE
Sample Questions:HP HPE7-A08 Sample Questions
Exam Way:Online proctored or onsite at Pearson VUE test centers
Pre Condition:Recommended: 6–12 months experience with Aruba AOS-CX switches and enterprise switching; no mandatory prerequisites
Official Syllabus URL:https://www.hpe.com/us/en/certification/exams/hpe7-a08.html

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HP HPE7-A08 Prüfungsplan:

ThemaEinzelheiten
Thema 1
  • Troubleshoot the Wired Network Solution: Candidates in this section, typically Network Support Specialists, are tested on identifying common wired network failures such as IP or VLAN mismatches, hardware issues, or port misconfigurations. It also involves analyzing performance problems caused by QoS or configuration errors and formulating effective remediation plans to restore correct network operations.
Thema 2
  • Create the Implementation Plan for the Wired Network Solution: This section measures the skills of Network Designers who focus on understanding the HPE switching portfolio and selecting the right products to match various customer requirements. Candidates must also demonstrate the ability to create detailed and effective implementation plans based on given designs or customer scenarios to ensure successful wired network deployments.
Thema 3
  • Manage, Maintain, Optimize, and Monitor the Wired Network Solution: This part measures the skills of Network Operations Engineers in managing and maintaining wired network infrastructures. It includes developing configuration management strategies, interpreting network operational data to make informed decisions, and programmatically auditing or configuring Aruba Networking switches to optimize performance and reliability.
Thema 4
  • Install and Configure the Wired Network Solution: This domain evaluates the abilities of Network Engineers to provision and configure HPE Aruba Networking switches both via Aruba Networking Central and command-line interface. It covers physical switch setup, Layer 2 and Layer 3 configuration and validation, multicast features, security implementations, quality of service (QoS) settings, and integration of Aruba Networking solutions into existing environments.

HPE Aruba Networking Switching Professional Exam HPE7-A08 Prüfungsfragen mit Lösungen (Q76-Q81):

76. Frage
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?

Antwort: C

Begründung:
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


77. Frage
Which two CLI commands help verify buffer utilization on an Aruba CX switch? (Select two)

Antwort: B,D

Begründung:
show qos buffer statistics provides buffer usage details, while show priority queues verifies traffic prioritization, helping identify congestion points.


78. Frage
Which steps should be followed to configure Layer 2 VLANs on Aruba switches?
(Select two.)
Response:

Antwort: A,B


79. Frage
A customer has set global qos trust dscp on an HPE Aruba Networking CX 6300 VSF configuration, which replaced the existing HPE Aruba Networking 5406R VSF. After the change, a video streaming service connected to ports 1/1/20 and 2/1/20, bound to LAG 20, no longer maps to the CoS priority queue mappings used in the old configuration.
What configuration change would enable priority trust on DSCP by default and on traffic that requires CoS?

Antwort: C

Begründung:
To resolve this QoS mapping issue on AOS-CX, you must understand the hierarchy of Trust Levels and how they interact with Link Aggregation Groups (LAGs).
Trust Hierarchy: AOS-CX switches use a " top-down " approach for QoS.
Global Trust: Setting qos trust dscp globally means that, by default, every port on the switch will look at the Layer 3 DSCP markings to determine queue priority.
Interface Override: You can override the global setting on a per-interface basis. If a specific device or service (like the video streaming service in this prompt) relies solely on Layer 2 CoS (802.1p) markings rather than DSCP, the switch will ignore those CoS markings under the global DSCP policy and place the traffic in a default (best-effort) queue.
LAG Configuration Logic: In the AOS-CX architecture, a LAG is a logical interface (interface lag 20).
Configuration parameters for the bundle (such as VLANs, ACLs, and QoS trust) should be applied to the logical LAG interface, not the individual physical member ports (1/1/20 and 2/1/20).
Once applied to the LAG, the settings are automatically inherited by all physical members.
Analyzing the Options:
Option D (Correct): By entering the interface lag 20 context and applying qos trust cos, you are instructing the switch to ignore the global DSCP setting for this specific bundle and instead trust the Layer 2 priority bits.
This allows the video service to once again map correctly to the intended priority queues.
Option A: This is unnecessarily complex. Setting the physical member ports to qos trust none and then the LAG to cos is redundant because the LAG configuration overrides the physical port settings in this context.
Option B: qos trust dscp, cos is not a valid AOS-CX command. Unlike the older AOS-S (ProCurve) software which allowed a combined dscp-cos trust, AOS-CX requires you to choose a single trust type (DSCP, CoS, or None) per interface.
Option C: This applies the configuration to the physical ports only. In an AOS-CX VSF/LAG environment, this is considered a configuration error or " best practice " violation, as the logical LAG interface should hold the configuration.


80. Frage
A network administrator is tasked to set up BGP in the company's network. The administrator is defining an eBGP peering between an AOS-CX switch and a directly-connected service provider.
The administrator has configured the following on the AOS-CX switch:

However, when using the "show bgp all summary" command, the state does not display
"Established" for the eBGP peer. What must the administrator configure to fix this issue?

Antwort: C


81. Frage
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