HP HPE7-A03 Exam Questions Instant Access

Question 1

What possible issue with the cote switch selection do you see in regards to the customers' requirements?

AThe core switch will not support the 25GbE downlinks to the distribution switches.

BThe cote switch will have a lot of unused ports.

CThe cote switch will not have enough ports for VSX links.

DThe cote switch will not support the 10GbE downlinks to the cabins and technical rooms.

Answer : A

In the scenario described, the most significant issue with the core switch selection, according to Aruba Campus Access learning resources, is answer A: 'The core switch will not support the 25GbE downlinks to the distribution switches.' This is a critical consideration because the bandwidth capabilities between the core and distribution layers significantly impact the overall network performance and scalability. If the core switch cannot support 25GbE downlinks, it may create a bottleneck, preventing the distribution switches from operating at their full capacity and affecting the performance of connected devices and applications. Ensuring the core switch has the necessary port speeds and densities to support the intended design and traffic patterns is crucial in network design, as emphasized in Aruba's documentation on campus network architectures.

Question 2

A global cruise line company needs to refresh its current fleet. They will refresh the 'insides' of the ship to be cost-effective and increase their sustainability. They will replace the complete WLAN/LAN hardware of the ship. In this refresh, the company will not refresh its current security requirements. The CIO also wants to limit the number of unused ports in the switches. Future expansion will always mean a refresh of hardware. They start with the smallest ship with a maximum of 800 guests.

Each ship has a LAN infrastructure consisting of two core switches, up to 10 redundant distribution switches, and up to 500 access switches (400 cabins, 100 technical rooms). The core switches are located in the MDF of the ship and the distribution switches are located in the IDFs of the ship. Each cabin and technical room gets one single access switch.

The cabling structure of the ship will not be refreshed. Each IDF is connected to the MDF by single-mode fiber (SMF), of which two pairs are available for the interconnect between the core and distribution. The length of SM fiber between MDF and IDF is less than 300 meters (980 ft), type used is OS1. Each cabin is connected by a single OM2 pair to the IDF, maximum length 60 m (200 ft). Each technical room is connected by a single OM2 pair to the IDF, with lengths 100--150 m (320--500 ft).

For each cabin/technical room the customer is looking to replace their current fan-less 2530/2540 without changing the requirements, except they need to upgrade the uplink to distribution switch to 10 GbE to handle the increased network traffic, and the technical rooms need redundant power.

The WLAN infrastructure will be 1:1 refreshed without new cabling or new AP locations. Their WLAN infrastructure is based on the 200/300 series indoor and outdoor APs running InstantOS (less than 300 APs), the customer has no change in WLAN requirements.

The cruise line company will replace its current Internet connection before the LAN/WLAN refresh. The new Internet connection will provide a 99.8% uptime, which is needed to ensure the paid guest Wi-Fi is always operational. With this new Internet connection, the CIO of the cruise line wants to base the design on the ESP architecture from Aruba because the Internet connection is guaranteed.

A week after the presentation of your design to the CIO of the cruise line company, the CIO calls you to discuss increasing the security of the wired network infrastructure. Since one of their competitors had one of their cruise ships cyber hacked, the CSO of the cruise line has mandated increased security on the wired network. They have heard about dynamic segmentation and central and decentral overlay networks. For their POS (Point of Sale) systems, they need a low-latency network connection between the POS system and the PCS server in the data center on the ship. Also, the CSO wants to enhance the WLAN security as well by tunneling all user traffic.

What solution fits the customer's requirements?

AStandardize on 6300 switches for the edge, 3320 for the RR, 8320 for the stub/border, 9240 for the WLAN Gateway, and utilize HPE Aruba Networking Central NetConductor.

BStandardize on 6300 switches for the edge, 8320 for the RR, 8360 for the stub/border, 9240 for the WLAN Gateway, and utilize HPE Aruba Networking Central NetConductor.

CStandardize on 6300 switches for the edge, 8325 for the RR, 8360 for the stub/border, 9240 for the WLAN Gateway, and utilize HPE Aruba Networking Central NetConductor.

DStandardize on 6300 switches for the edge, 8320 for the RR, 8360 for the stub/border, and utilize HPE Aruba Networking Central NetConductor.

EStandardize on 6200 switches for the edge, 8325 for the RR, 8360 for the stub/border, and utilize HPE Aruba Networking Central NetConductor.

Answer : C

Comprehensive and Detailed Explanation From Exact Extract:

Aruba's ESP Campus Access Design and NetConductor Architecture guides outline the validated roles of devices in dynamic segmentation deployments.

Access Layer (Edge): Aruba CX 6300

The CX 6300 provides 10 Gb uplinks to distribution, advanced features like VXLAN and EVPN, and support for role-based access control at the edge. It is the recommended choice for modern edge deployments in an ESP fabric.

Route Reflector (RR): Aruba CX 8325

The CX 8325 is optimized for routing and control-plane operations. As a route reflector, it scales overlay BGP sessions and distributes policies/roles through the fabric. It is explicitly referenced as the ideal RR platform in Aruba ESP campus validated designs.

Stub/Border: Aruba CX 8360

The CX 8360 family provides advanced aggregation and fabric services. It supports VXLAN, EVPN, and border routing functions, making it the right choice for stub/border persona in ESP designs.

WLAN Gateway: Aruba 9240

The Aruba 9200/9240 series gateways provide role-based policy enforcement for tunneled WLAN traffic. They terminate GRE/IPsec tunnels from APs, enforce user policies, and forward into the fabric. This is critical to meet the requirement of tunneling all WLAN user traffic for enhanced security.

Dynamic Segmentation with NetConductor

Aruba Central NetConductor enables centralized definition and orchestration of user roles and segmentation policies. Roles are automatically enforced across the fabric using VXLAN with Group-Based Policy (GBP). This supports both centralized tunneling (for WLAN traffic) and distributed segmentation (for wired POS traffic requiring low latency).

Requirement Mapping:

Low-latency POS traffic Distributed role enforcement within the fabric via 8360/8325.

Secure WLAN traffic User traffic tunneled to the 9240 gateway for role-based enforcement.

10 Gb uplinks and redundancy Provided by 6300 edge switches with dual power options in technical rooms.

ESP architecture NetConductor automates overlay, segmentation, and role orchestration.

Other options are eliminated because:

A uses 3320 for RR, which lacks overlay fabric scalability.

B uses 8320 for RR (possible, but Aruba recommends 8325 for RR roles in NetConductor designs).

D omits the WLAN Gateway, which is required to tunnel WLAN traffic.

E uses 6200 at the edge, which does not provide the required 10 Gb uplink capability.

Therefore, Option C is the only design that fully satisfies the cruise line's requirements while aligning with Aruba's ESP Campus validated architectures.

Reference Extracts (Aruba Official Study & Design Guides):

Aruba ESP Campus Design Guide: device personas (edge, RR, stub/border, gateway) and NetConductor integration.

Aruba NetConductor Technical Overview: VXLAN-GBP, dynamic segmentation, and centralized role enforcement.

Aruba Dynamic Segmentation Solution Overview: tunneling of WLAN traffic, role-based security across wired and wireless.

Aruba CX Switch Series Data Sheets: CX 6300 (edge with 10 Gb uplinks), CX 8325 (RR), CX 8360 (border/stub), Aruba 9240 (WLAN gateway).

Question 3

A global cruise line company needs to refresh its current fleet. They win refresh the insides' of the ship to be cost-effective and increase their sustain ability. They Mill replace the complete WLAN/LAN hardware of the ship. In this refresh, the company will not refresh Us current security requirements. The CIO also wants to limit the number of unused ports in the switches. Future expansion will always mean a refresh of hardware. They start with the smallest ship with a maximum of 800 guests

Each ship has a LAN infrastructure consisting of two core switches, up to 10 redundant distribution switches, and up to 500 access switches (400 cabins. 100 technical rooms). The Core switches are located in the MDF of the ship and the distribution switches are located in the IDFs of the ship. Each cabin and technical room gets one single access switch.

The cabling structure of the ship will not be refreshed. Each IDF is connected to the MDF by SMF. of which two pairs are available for the interconnect between the core and distribution. The length of SM fiber between MDF and IDF is less than 300 meters (930 ft) and the type used is 0S1. Each cabin is connected by a single 0M2 pair to the IDF. the maximum length is 60 meters (200 ft). Each technical room is connected by a single 0M2 pail to the IDF. with lengths between 100 and 150 meters (320 and 500 ft).

For each cabin/technical room the customer is looking to replace their current fan-less 2530/2540 without changing the requirements, except they need to upgrade the uplink to distribution switch to 10GbEto handle the increased network traffic, and the technical rooms need redundant power.

The WLAN infrastructure will be 1:1 refreshed without new cabling or new AP locations. Their WLAN Infrastructure is based on the 200/300 series Indoor and outdoor APs running instantOS (less than 300 APs). the customer has no change in WLAN requirements.

The cruise line company will replace its current Internet connection before the LAN/WLAN refresh. The new Internet connection will provide a 99.8% uptime, which is needed to ensure the paid guest Wi-Fi is always operational. With this new internet connection, the CIO of the cruise line wants to base the design on the ESP architecture from Aruba because Internet connection is guaranteed.

Based on the best practices and customer requirements, what is the correct LAN approach?

Amanagement VLAN in the overlay, user VLANs in the underlay

Bmanagement and user VLANs in the overlay

Cmanagement and user VLANs in the underlay

Dmanagement VLAN in the underlay, user VLANs in the overlay

Answer : D

In the context of the ESP architecture from Aruba and the specific requirements of the cruise line company, the best practice would be to place management VLANs in the underlay and user VLANs in the overlay. This design allows for a clear separation of management traffic from user data, enhancing security and network performance. The management underlay ensures secure and reliable access to network infrastructure for administrative purposes, while the user overlay allows for flexible and dynamic segmentation of user traffic. This approach is aligned with best practices for network design, where critical management traffic is isolated from user data to prevent unauthorized access and potential security breaches. It also supports the cruise line's need for a robust and secure network to ensure the operational reliability of paid guest Wi-Fi and other critical services.

Question 4

What is the simple difference between a main distribution framework (MOF) closet and an intermediate distribution framework (IDF) closet?

AMOF is the point where traffic egresses the campus network, and IDFs distribute that connectivity throughout the building.

BMDFs always have larger rooms than IDFs.

CMDFs only connect to other MDFs. and IDFs only connect to other IDFs.

DMDF Is a term used in Europe whereas the Americas refer to all network closets as IDFs in their documentation.

Answer : A

In network design, the Main Distribution Frame (MDF) and Intermediate Distribution Frame (IDF) are critical components of the network infrastructure. The MDF is the primary hub of the network, often where services from outside the campus or building enter and get distributed. It acts as a central point for network distribution. On the other hand, IDFs are secondary hubs situated throughout the building or campus, extending connectivity provided by the MDF to various endpoints or areas within the building. The simple difference between them lies in their roles within the network infrastructure: the MDF serves as the main point of network ingress and egress, while IDFs are used to further distribute the network to specific locations or floors within the building.

Question 5

You are delivering a replacement collapsed core network proposal to the customer where the core switches will have the switched virtual interlaces (SVl) configured. The customer is not sure that a USX pair of switches will Be able to act as I tie spanning tree root in their environment.

Which options are true about spanning tiee and VSX that will help assure the customer that a VSX pair of switches are appropriate for a collapsed core? (Select two.)

AThe primary vsx switch ts the spanning tree root and the default behavior is the links on the secondary vsx switch are blocked with sub-millisecond failover assured by vsx active-gateway.

BWhen LAG interfaces are configured on a VSX pair of switches, both switches are 'operational primary' and ensure active-active LAG operation equally.

CBoth VSX switches are configured with the system MAC and then create unique STP bridge-IDs to identify 'operational primary' and 'operational secondary' for proper STP functioning

DAruba VSX switches support either multiple spanning tree (MSTP) or rapid per VLAN spanning tree (RPVST).

EThe ISL between VSX switches is never part of STP domain and doesn't send or receive BPDUs on this link and this ensures the 'operational primary' and 'operational secondary' switches are deterministic to other dual-attached switches.

Answer : D, E

According to Aruba Campus Access documents and learning resources, Aruba VSX (Virtual Switching Extension) technology is designed to provide advanced high availability and redundancy features for campus networks. Specifically, answer D is correct because Aruba VSX supports both Multiple Spanning Tree Protocol (MSTP) and Rapid Per VLAN Spanning Tree (RPVST), ensuring efficient tree structures for VLANs and rapid convergence in case of topology changes. Answer E is also true as the Inter-Switch Link (ISL) used for the VSX pair is not part of the Spanning Tree Protocol (STP) domain, meaning it does not send or receive Bridge Protocol Data Units (BPDUs). This design prevents the ISL from influencing STP calculations, ensuring that the operational roles of the primary and secondary switches in the VSX pair are clear and predictable to the rest of the network. This separation helps maintain deterministic behavior and failover capabilities in the network, aligning with the goals of a collapsed core network design.

Question 6

The customer recently found out that Aruba OS-CX switches are capable of Application Recognition. What requirements should be fulfilled in order to do this? (Select two.)

A6400 with Aruba CX Advanced License

B6300F/M with Aruba CX Advanced License

C8360 with Aruba CX Advanced License

D6200F/M with Aruba CX Advanced License

Answer : A

Aruba OS-CX switches, specifically the Aruba 6400 and 6300F/M models, are designed to support advanced networking features, including Application Recognition, with the Aruba CX Advanced License. The Advanced License enables enhanced capabilities such as deeper visibility into application flows, advanced routing features, and improved network analytics. Application Recognition allows these switches to identify and classify applications running on the network, enabling more intelligent and dynamic network policies and improving overall network performance and security. The requirement for an Aruba CX Advanced License on these specific models ensures that the necessary software features and support are available to leverage Application Recognition capabilities effectively.

Question 7

A global furniture retail company called 'No-Stair Inc.' requests you design their new WLAN infrastructure for a global footprint. Each location of No-Stair Inc.' has a similar layout: three small manager offices, a warehouse, and a 'retail' are

a. The 'retail' area and the warehouse together amount to 95% of the location. The IT department of the company Is minimally engaged In their LAN refresh so the CTO of the company has shared the information below

Current WLAN Infrastructure Is based on the 802.1 In "WlF14Less" access-points series (both model 2013-INT (2.4 only Internal antenna) and model 2019-EXT (dual-band external antenna only)). These AP models are standalone without any centralized management. Last year 'No-Stair InC ran a project called secure. It' ensuring that all needed network security was Implemented to be fully compliant with their security standards. During this project, they also upgraded the AAA infrastructure to handle the Increased AAA requests. No additional Wi-Fi or security requirements are listed for this WLAN refresh, which means that 'No-Stair Inc.' will continue to use bridged SSIDs. with local breakout into different VLANs.

The CTO of No-Stair Inc.' understands the need for you to ask additional questions to deliver the design The questions may be sent in written form and will be answered within two weeks.

Which additional question is correct in order to collect needed information for the WLAN design?

AWho is the campus switch vendor?

BIs there a current RF survey report that you can share?

CWhat type of fiber connection Is used between the core and access layer switches?

DIS there enough cooling In the MDF?

Answer : B

An RF (Radio Frequency) survey report is crucial for WLAN design as it provides detailed information about the current wireless environment, including signal strengths, interference sources, coverage gaps, and the effectiveness of the existing WLAN infrastructure. For a company like 'No-Stair Inc.' that is planning to refresh its WLAN across a global footprint, understanding the current RF conditions in each location is essential. This information helps in designing a WLAN infrastructure that can meet the specific needs of different areas within the locations, such as the retail area and warehouse, ensuring optimal coverage, performance, and user experience. An RF survey report would allow the designer to make informed decisions regarding the placement of new access points, the selection of appropriate antennas, and the configuration of WLAN parameters to improve coverage and capacity while minimizing interference.

HP Aruba Certified Campus Access Architect HPE7-A03 Exam Questions