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HP HPE7-A08 Exam Syllabus Topics:

TopicDetails
Topic 1
  • 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.
Topic 2
  • 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.
Topic 3
  • 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.
Topic 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.

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HPE Aruba Networking Switching Professional Exam Sample Questions (Q136-Q141):

NEW QUESTION # 136
What will help prevent false positives with ARP inspection?

Answer: D

Explanation:
On AOS-CX, Dynamic ARP Inspection distinguishes between trusted and untrusted interfaces . All interfaces are untrusted by default, and ARP packets arriving on untrusted ports are checked against valid IP-to-MAC bindings, principally the DHCP snooping binding database or supported static bindings. HPE Aruba specifies that only ARP traffic entering untrusted interfaces is subjected to these validation checks. Aruba Networks A hypervisor port is a special case because the physical interface can legitimately source ARP traffic for many virtual machines , each with its own MAC address and IP address. Unless every VM has a corresponding valid binding available to Dynamic ARP Inspection, legitimate VM ARP traffic can be interpreted as invalid. Configuring interface 1/1/20 as trusted prevents these legitimate ARP messages from generating false-positive inspection failures.
On the CX 6300, the correct interface-level configuration is:
interface 1/1/20
arp inspection trust
HPE Aruba explicitly documents arp inspection trust under the physical interface configuration context and confirms that it marks the interface as trusted. Aruba Networks Options B, C, and D are not valid forms of the AOS-CX DAI trust command. Trust is assigned to the interface , not directly to an individual MAC/IP pair using those syntaxes.
Study Guide References: Dynamic ARP Inspection; DHCP Snooping Bindings; Trusted and Untrusted Interfaces; Hypervisor Connectivity; ARP Spoofing Protection.


NEW QUESTION # 137
Which best practices help optimize network performance?
(Select two.)
Response:

Answer: A,B


NEW QUESTION # 138
A customer reports that their HPE Aruba Networking ClearPass Guest captive portal is not functioning. The page loads but they are unable to browse after pressing connect. They have uploaded a valid and publicly trusted *. aruba-training.com certificate.
Refer to the exhibit.


Which would explain this issue?

Answer: C


NEW QUESTION # 139
An existing AOS-10 wireless deployment is expanding its zero-trust wireless network to multiple locations. The requirement is to propagate role information to enforce group-based policies for wireless client traffic across all locations. To achieve this goal, which must be configured in this infrastructure?

Answer: D


NEW QUESTION # 140
How would you explain to a new HPE Aruba Networking CX customer how the switch can protect against use cases of malicious DHCP servers and ARP poisoning in the network where client-to-server communication is required?

Answer: A

Explanation:
To protect a network from Layer 2 man-in-the-middle attacks, AOS-CX switches utilize two closely related security features: DHCP Snooping and Dynamic ARP Protection.
DHCP Snooping: This feature acts as a firewall between untrusted hosts and trusted DHCP servers. When enabled, the switch categorizes ports as either trusted (connected to a legitimate DHCP server or another switch) or untrusted (connected to end-user devices). If a " malicious " DHCP server on an untrusted port attempts to send a DHCP OFFER or ACK message, the switch drops the packet.
The Snooping Binding Table: As a byproduct of monitoring legitimate DHCP exchanges, the switch builds a DHCP Snooping Binding Table. This table is a " source of truth " that maps a client ' s MAC address to its assigned IP address and the specific physical port it is connected to.
Dynamic ARP Protection: ARP poisoning (or spoofing) occurs when an attacker sends fake ARP messages to link their MAC address with the IP address of a legitimate server or gateway. When ARP protection is enabled, the switch intercepts all ARP packets on untrusted ports and validates them against the DHCP Snooping Binding Table. If the MAC-to-IP mapping in the ARP packet does not match the entry in the table, the packet is discarded.
Integration: These two features must work together. Without the binding table created by DHCP Snooping, ARP Protection has no data to validate against. This combination ensures that only the device that legitimately received an IP via DHCP can claim that IP in ARP responses.


NEW QUESTION # 141
......

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