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NEW QUESTION # 23
ACME retail has 38 locations spread out across five US states and two provinces in Canada.
They are looking to grow 20% over the next two years. They have an HQ with a staff of 200 employees. The organization has eight Regional Managers and two VPs who work from home and the road. Stores typically have 17 employees on average per location.
The two warehouses have a remote loading system and 20 employees each to load the trucks and fulfill the online orders. The warehouse has 40-foot ceilings and large metal racks to store inventory. The main location is 240K sq ft (22300 sq m) and the Canadian warehouse is 130K sq ft (12100 sq m). The forklifts on the loading docks are equipped with a wireless tablet on board.
A typical store is reportedly about 60,000 sq ft (5575 sq m) and smaller stores are planned at
25,000 sq ft (2320 sq m). The locations need to expand the abilities to vendors that need to add setup displays or interactive kiosks in the stores. The current infrastructure was installed in 2015 and used wireless N technology in a coverage model. The wiring is Cat5, and they are unsure of the fiber connections. The inventory is all placed on the floor when it is delivered to the local store.
Inventory control is handled through Zebra barcode scanners, and they have had a lot of issues in getting signals throughout the stores and this makes monthly inventory difficult. The organization has a small help desk to troubleshoot issues that happen at the retail locations and PC support for the office. The company is looking to upgrade away from the current PBX system later this year. With the need to grow and cut costs, they are interested in moving the data to the cloud but need to get almost real-time inventory control for the online service to function.
The network has all been wired over the last ten years, but with the new systems being all wireless, they have seen the trend to offer wireless to all the vendors for their needs but also would be to allow employees, guests, and contractors all to use it. With the new IT director starting next week, the project has been set by the CTO of the company. The marketing group has asked how they can interact with the customers and get more info, while the IT support desk needs to cut staff in half.
The office has an MDF and two IDFs located on floors one and two. The MDF is in the basement, and you have multiple WAN circuits for the HQ links. Each store has a local handoff from the cable company (ethernet) in the middle of the store in the office, so distance for the wiring is not an issue.
The customer has budget concerns but does want something that could last 7+ years.
Based on the best practices and customer requirements, what is the correct WLAN approach?
- A. OS8 campus deployment
- B. OS10 AP only deployment
- C. OS10 AP and gateway deployment
- D. Instant OS8 deployment
Answer: D
Explanation:
For ACME Retail, which has multiple locations and a mix of environments including high-ceiling warehouses and retail spaces, an Aruba Instant OS 8 deployment is a suitable WLAN approach.
Aruba Instant OS provides a controller-less architecture, which simplifies the deployment and management of the wireless network, especially across multiple sites. This approach enables ACME Retail to manage their entire wireless network from a single interface without the need for dedicated hardware controllers, reducing costs and complexity. Instant OS also supports advanced features like Adaptive Radio Management and ClientMatch to ensure optimal performance in diverse environments, making it an effective solution for ACME's varied locations and requirements.
NEW QUESTION # 24
Match the deployment type with the usage scenario.
Answer:
Explanation:
Explanation:
Capacity based design with low to mid density - Basic office/cubicle area with low to medium user density and no voice with limited rf redundancy.
Coverage based design - Coverage, office areas with higher user density OR basic coverage office/cubicle with High Demand users High-capacity design - High user density indoor space, with high demand users Very low-density, low coverage - Warehouses, large open areas The types of wireless network deployment should be matched to the usage scenarios based on the density of users and coverage requirements:
* Capacity based design with low to mid density is suitable for basic office or cubicle areas where there are not many users, and high-performance voice applications are not a priority, thus limited RF redundancy may be acceptable.
* Coverage based design is intended for areas where coverage is more critical than capacity. It could be used in office areas with higher user density, where maintaining a basic level of connectivity is more important than accommodating a large number of high-bandwidth connections.
* High-capacity design is used in environments where there is a high density of users who are likely to be using bandwidth-intensive applications. This could include indoor spaces like conference centers, auditoriums, or any area with a high concentration of users and devices.
* Very low-density, low coverage is typically for spaces like warehouses or large open areas where there are few users spread out over a large area. The focus here is on providing coverage to all areas, regardless of the low user density.
NEW QUESTION # 25
What are the advantages of using a VSX-pair instead of two discrete switches to connect servers, storage, firewalls, and other workloads?
- A. You can save half the number of licenses needed for AFC.
- B. Bare metal servers can be connected via MLAGs using LACP.
- C. The setup is much easier since both switches are sharing the same configuration.
- D. VMWare-Host can be connected with or without using LACP. regardless of their license.
Answer: B
Explanation:
Virtual Switching Extension (VSX) is a virtualization technology for Aruba AOS-CX switches that provides high availability by allowing two switches to appear as a single logical device to connected endpoints.
The primary advantage for servers and workloads includes:
* Multi-Chassis Link Aggregation (MLAG): VSX allows for the creation of Multi-Chassis Link Aggregation Groups. This enables bare metal servers and other workloads to connect to two different physical switches using a single LACP (Link Aggregation Control Protocol) bond.
* Redundancy and Throughput: Because both links in the MLAG are active, the server benefits from doubled bandwidth and seamless failover; if one switch goes down, the server continues to communicate through the second switch without a port flap.
* Control Plane Independence: Unlike older stacking technologies (VSR), VSX maintains separate control planes for each switch. This allows for Live Upgrades, where one switch can be updated while the other continues to forward traffic, ensuring zero downtime for connected workloads.
Why other options are incorrect:
* Option B: While VMware hosts can connect, their ability to use LACP is dependent on the VMware license level (e.g., Distributed Virtual Switch requires Enterprise Plus).
* Option C: While VSX synchronizes some parameters via the VSX-Sync feature, both switches maintain their own unique configurations (such as IP addresses and hostnames), so they do not literally
"share the same configuration".
NEW QUESTION # 26
'Don't Buy at Us' is a US-based retail company that is expanding into Europe. They are expanding into EMEA with a regional headquarters called HQ2 inside The Netherlands. Their US- based headquarters HQ1 was refreshed last year based on the HPE Aruba Networking ESP architecture. You have created the design for HQ2 based on the same design as HQ1, a two-tier architecture. The high level is shown below.
Switch BOM for this project based on Two Tier:
Collapsed Core: 2 x Aruba 8360-16Y2C in VSX (ISL 2x100GbE DAC)
Access Stack: 10 x Stack of 6200F 48G Class4 PoE 4SFP+ 740W (each stack has 4 members, VSF with 10GbE VSF links) (2 x 10GbE uplink per stack) During the presentation of your design to the CTO of "Don't Buy at Us" you were informed about the changes they want you to incorporate into the updated design:
1. HQ2 will include the EMEA regional distribution center (EMEA-DISTR) next to the HQ2.
2. Only two pairs of OS1 are available between HQ2 and EMEA-DlSTR.
3. The uplinks from all access stacks need to increase to 2 x 25GbE, the fiber in HQ2 and EMEA- DISTRI is certified for 25GbE.
4. EMEA-DlSTR needs at least 7 x stack of Aruba 48 ports switches (each stack has 4 members).
Which answer based on best practice is presenting the correct Switch BOM tor the updated design?
- A.
- B.
- C.
- D.
Answer: B
Explanation:
Based on the requirements provided by "Don't Buy at Us," the updated design needs to accommodate 25GbE uplinks and a minimum of 7 stacks of 48-port Aruba switches for the EMEA-DISTR. Option C is the most suitable based on best practices, as it proposes:
A core configuration consisting of two Aruba 8360-12C in VSX for the collapsed core with ISL of
2x100GbE DAC, which will provide robust core networking with high-speed interconnects, suitable for the demands of a regional distribution center and headquarters. Aggregation with two stacks, each with 2 Aruba 8360-12C in VSX (ISL 2x100GbE DAC), accommodating the uplink capacity requirements.
Access stacks with a total of 17 stacks of Aruba 6300F 48-port 1GbE Class 4 PoE with 4-port SFP56 (each stack has 4 members, VSF with 50GbE VSF links, 2 x 25GbE uplinks per stack), which exceeds the minimum requirement of 7 stacks and provides the necessary uplink bandwidth. This configuration supports the 25GbE uplink speeds, satisfies the required number of switch stacks for the EMEA distribution center, and is compatible with the existing 25GbE- certified fiber infrastructure at HQ2 and EMEA-DISTR.
NEW QUESTION # 27
'Don't Buy at Us' is a US-based retail company that is expanding into Europe. They are expanding into EMEA with a regional headquarters called HQ2 inside The Netherlands.
Their US-based headquarters HQ1 was refreshed last year based on the HPE Aruba Networking ESP architecture. You have created the design for HQ2 based on the same design as HQ1, a two- tier architecture. The high level is shown below.
Switch BOM for this project based on Two Tier:
Collapsed Core: 2 x 8360-16Y2C in VSX (ISL 2x100GbE DAC)
Access Stack: 10 x Stack of 6200F 48G Class4 PoE 4SFP+ 740W (each stack has 4 members, VSF with 10GbE VSF links) (2 x 10GbE uplink per stack) Based on the scenario, which switch would be a good access layer switch to recommend?
- A. CX 6400
- B. 1950S
- C. CX 6300F
- D. CX 6100
- E. 0
Answer: C
Explanation:
For a modern ESP-based two-tier design, the access layer should use an Aruba CX switch that supports VSF stacking, 10 GbE uplinks, and full Layer 3/PoE features. Among the options, the CX 6300F best matches these requirements and is the appropriate access switch to recommend.
NEW QUESTION # 28
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' area. 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 802.11n "WIFI4Less" 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.
What is a possible constraint?
- A. Does the existing AAA infrastructure support an upgraded Wi-Fi Network?
- B. Does the existing wired network support enough PoE for an upgraded Wi-Fi Network?
- C. Does the existing core switch support an upgraded Wi-Fi Network?
- D. Does the existing WAN infrastructure support an upgraded Wi-Fi Network?
Answer: C
Explanation:
Because the WLAN will continue using bridged SSIDs with local VLAN breakout, all Wi-Fi traffic depends directly on the existing core switching infrastructure. If the current core switch cannot handle the increased load or capabilities of the new Wi-Fi design, this becomes a fixed design limitation - a constraint.
NEW QUESTION # 29
A large multinational financial institution has contracted you to design a new full-stack wired and wireless network for their new 6-story regional office building. The bottom two floors of this facility will be retail space for a large banking branch. The upper floors will be carpeted office space for corporate users, each floor being approximately 100.000 sq ft (9290 sqm). Data centers are all off site and will beout of scope for this project. The customer is underserved by its existing L2-based network infrastructure and would like to take advantage of modern best practices in the new design. The network should be fully resilient and fault-tolerant, with dynamic segmentation at the edge.
The retail space will include public guest Wi-Fi access. Retail associates will have corporate tablets for customer service, and there will be a mix of wired and wireless devices throughout the retail floors. The corporate users will primarily use wireless for connectivity, but several wired clients, printers, and hard VoIP phones will be in use.
The customer is also planning on renovating the corporate office space in order to take advantage of "smart office' technology. These improvements will drive blue-dot wayfinding. presence analytics, and other location-based services The client would like to ensure full wireless coverage in its 40 m x 40 m i 130 ft x 130 ft) auditorium during company functions while maintaining the fewest APs for aesthetic purposes WI-FI6 APs are a minimum requirement.
Which AP series would you use In the auditorium's 1.000 seats with a maximum take rate of 80%?
- A. AP635
- B. AP515
- C. AP577
- D. AP555
Answer: A
Explanation:
The Aruba AP-635 is a Wi-Fi 6 (802.11ax) access point, designed for high-density environments such as auditoriums. It is capable of providing high throughput and efficient airtime fairness to a large number of clients, which makes it suitable for an auditorium setting with 1,000 seats and a high take rate. The AP-635's advanced capabilities, including OFDMA and MU-MIMO, allow it to handle multiple simultaneous connections efficiently, ensuring robust wireless coverage and performance during company functions, all while keeping the number of APs to a minimum to satisfy aesthetic concerns.
NEW QUESTION # 30
XYZ Regional Hospital is an integrated healthcare system of hospitals, neighborhood health centers, and small doctor offices. XYZ Regional Hospital has recently merged with 4x neighborhood health centers and
125 doctor branch offices. The wireless, wired access, and AAA
solutions are outdated and need to be replaced
XYZ Regional Hospital is looking to future-proof and improve efficiency across all sites by enhancing wired and wireless access and migrating to a centralized and unified wired/wireless and policy management that can provide uninterrupted availability of all systems.
Locations:
- XYZ Regional Hospital is located in New York City
- Dila Health Center is located in City A
- Mount Health Center is located in City B
- Rock Health Center is located in City C
- Branch clinics are located at different locations across the United States Requirements:
- Provide, via management software, one single pane of glass to manage wired and wireless IANs. and VPNs across campus, branch, and remote via web/cloud architecture providing near real-time Insight.
troubleshooting tools, and Service Level performance reporting.
- Seamless integration across wired, wireless. WAN. SD-Branch. loT
- Provide secure wireless access to all the employees of the Regional Hospital and partners, as well as provide wireless Internet access to medical citizens when they visit our facilities.
- All-access points must support the following features and specifications: 802.11ax (Wi-Fi 6E Certified)
- Security options including WP2/WPA3. 802.1X with Radius secure authentication
- Identify and authenticate every wireless and wired device
- End-to-end role-based security
- Seamless mobility across the hospital tor medical learns, patients, and visitors
- Cuts Wi-Fi deployment times from days to hours and enables Zero-Touch deployments across the site
- Establishes a resilient, future-ready network infrastructure with the intelligence, scalability, and intuitive toolsets to meet emerging needs
- Fully redundant branch solution with dynamic path selection to the hospital XYZ Regional Hospital is concerned about the performance of new latency-sensitive applications that will be introduced when connected via wireless.
Which solution can address this concern?
- A. AirMatch
- B. Client Insight
- C. IDS/IPS
- D. AirSlice
Answer: D
Explanation:
HPE Aruba Networking AirSlice is a unique technology specifically designed to guarantee performance for latency-sensitive applications in high-density Wi-Fi 6 (802.11ax) environments, such as a hospital. In medical environments, applications like voice over Wi-Fi, wireless fetal monitoring, or real-time imaging require consistent bit rates and low latency.
* Application Prioritization: AirSlice works by utilizing the OFDMA (Orthogonal Frequency Division Multiple Access) capabilities of Wi-Fi 6 to allocate dedicated "slices" of the radio frequency spectrum to specific high-priority applications.
* Latency Reduction: Unlike standard Quality of Service (QoS) which only prioritizes packets in a queue, AirSlice schedules the airtime at the radio level, ensuring that time-critical traffic does not have to compete with bulk data transfers or background traffic.
* Hospital Use Case: For XYZ Regional Hospital, this ensures that medical teams using handheld devices for patient care receive a "wire-like" experience even when the guest network is heavily utilized by visitors.
Why other options are incorrect:
* IDS/IPS (A): These are security features for detecting and preventing intrusions, not for managing application latency.
* Client Insight (C): This is a visibility and profiling tool used to identify and categorize connected devices, primarily for security and NAC purposes.
* AirMatch (D): While AirMatch optimizes the RF environment by managing channel assignment, channel width, and transmit power, it does so on a system-wide level rather than providing granular per- application latency guarantees.
NEW QUESTION # 31
Which is true when it comes to HPE Aruba Networking Central licensing for gateways? (Select two.)
- A. Gateway normal licensing is subdivided into three categories: Foundation, Advanced, and Foundation Base.
- B. SD-Branch Gateway licenses allow normal WLAN Gateway features within a campus..
- C. SD-WAN Gateway functionality requires security licensing.
- D. WLAN Gateway licenses allow normal SD-Branch features within a campus.
Answer: B,C
Explanation:
In the context of Aruba Central licensing for gateways, it is true that SD-WAN Gateway functionality requires a specific security licensing (Option B), which is essential for enabling advanced security features and capabilities in an SD-WAN deployment. This includes functionalities like firewall, threat management, and secure VPN connections. Additionally, Aruba SD-Branch Gateway licenses allow for the use of standard WLAN Gateway features within a campus environment (Option C). This means that with an SD-Branch Gateway license, the gateway can handle traditional WLAN management and security tasks, in addition to its SD-WAN capabilities, providing a unified solution for both branch and campus deployments.
NEW QUESTION # 32
A large multinational financial institution has contracted you to design a new full-stack wired and wireless network for their new 6-story regional office building. The bottom two floors of this facility will be retail space for a large banking branch. The upper floors will be carpeted office space for corporate users, each floor being approximately 100.000 sq ft (9290 sqm). Data centers are all off site and will be out of scope for this project. The customer is underserved by its existing L2-based network infrastructure and would like to take advantage of modern best practices in the new design. The network should be fully resilient and fault-tolerant, with dynamic segmentation at the edge.
The retail space will include public guest Wi-Fi access. Retail associates will have corporate tablets for customer service, and there will be a mix of wired and wireless devices throughout the retail floors. The corporate users will primarily use wireless for connectivity, but several wired clients, printers, and hard VoIP phones will be in use.
The customer is also planning on renovating the corporate office space in order to take advantage of "smart office' technology. These improvements will drive blue-dot wayfinding. presence analytics, and other location-based services The client decided that wired headless devices would be authenticated using Mac Authentication and would have RADIUS attributes sent back to the NAD to assign VLAN and port access parameters to the authentication session on the switch port.
What would be critical in making this a successful deployment? {Select two.)
- A. DHCP
- B. Airwave
- C. Mobility Gateway
- D. ClearPass
Answer: A,D
Explanation:
For a successful deployment of MAC Authentication with RADIUS attributes for VLAN and port access parameters, ClearPass is critical. ClearPass Policy Manager offers advanced network access control, policy management, and is capable of handling MAC Authentication effectively. It can communicate with the Network Access Devices (NADs) to apply the correct access policies based on RADIUS attributes received during the authentication process. DHCP is also crucial in this setup for dynamically assigning IP addresses to authenticated devices, ensuring that they can connect to the network with the appropriate network settings.
Together, ClearPass and DHCP services form the backbone of a secure, manageable, and dynamically segmented network infrastructure, ensuring devices are authenticated and receive the correct network configuration.
NEW QUESTION # 33
Based on this campus design, click on the layer that is the most appropriate to be designed as a Stub Persona, considering an EVPN VXLAN Fabric?
Answer:
Explanation:
Service Aggregation
NEW QUESTION # 34
You are going with a 3-tier design and need to calculate the oversubscription ratio on the Access.
Distribution. Core, and ToR Layer. What is a suitable oversubscription ratio for each layer?
Answer:
Explanation:
Explanation:
Access: 24:1
Aggregation: 4:1
Core: 2:1
ToR: 4:1
NEW QUESTION # 35
A large multinational financial institution has contracted you to design a new full-stack wired and wireless network for their new 6-story regional office building. The bottom two floors of this facility will be retail space for a large banking branch. The upper floors will be carpeted office space for corporate users, each floor being approximately 100,000 sq ft (9290 sq m). Data centers are all offsite and will be out of scope for this project. The customer is underserved by its existing L2- based network infrastructure and would like to take advantage of modem best practices in the new design. The network should be fully resilient and fault-tolerant, with dynamic segmentation at the edge.
The retail space will include public guest Wi-Fi access. Retail associates will have corporate tablets for customer service, and there will be a mix of wired and wireless devices throughout the retail floors. The corporate users will primarily use wireless for connectivity, but several wired clients, printers, and hard VoIP phones will be in use.
The customer is also planning on renovating the corporate office space in order to take advantage of 'smart office' technology. These improvements will drive blue-dot wayfinding, presence analytics, and other location-based services.
The client would like to ensure redundant RADIUS resources in each of their three geographical regions (AMER, EMEA, and APAC). A large office location is available in each region with sufficient VMware resources available.
- Each region has 5,000 clients, all of which will need to do either 802.1x wired or wireless authentications as well as 802.1x authentication for a single personal device on Wi-Fi.
- All of the non-personal devices will also need to validate health with a local agent.
- A total of 500 guests are expected to be connected on average with a maximum of 700 simultaneous connections making use of Guest Portal for access to the Internet.
- TACACS authentication will also be configured for a total of 1,200 evenly dispersed NADs.
In order to support virtual IPs and server redundancy in each region how many Virtual Policy Manager Licenses will be needed?
- A. three licenses, C3000V
- B. six licenses, C2000V
- C. six licenses, C3000V
- D. three licenses, C2000V
Answer: C
Explanation:
In a scenario requiring redundant RADIUS resources across three geographical regions, with the scale of operations as described, opting for six C3000V Virtual Policy Manager licenses would ensure adequate capacity and redundancy. The C3000V model is designed to cater to larger deployments, offering high-capacity RADIUS services suitable for environments with thousands of clients and devices requiring authentication and health validation. By deploying two C3000V instances in each region (AMER, EMEA, and APAC), the financial institution can achieve both high availability and load balancing, ensuring that authentication services remain uninterrupted and efficient, even in the event of a server failure or during maintenance periods. This approach aligns with best practices for enterprise network design, emphasizing resilience and reliability in critical infrastructure components like authentication services.
NEW QUESTION # 36
identify the stakeholders when gathering information for the network design and new IDF/MDF design.
(Select two.)
- A. Chief Financial Officer
- B. Help desk manager
- C. Network Operations manager
- D. Facility manager
Answer: C,D
NEW QUESTION # 37
What documents should be included in the solution proposal? (Place the correct items into the list at the right.
Order is not important. Not all options will be used)
Answer:
Explanation:
Explanation:
For the solution proposal, the documents that should typically be included are:
* Architect's notes from meetings
* As-built rack drawings
* Assumptions documented in design
* Bill of materials
* Data sheets of equipment proposed
* Proposed topology diagram
* Quote
NEW QUESTION # 38
ACME retail has 38 locations spread out across Ave US states and two provinces in Canada. They are looking to grow 20% over the next two years. They have an HO with a staff of 200 employees. The organization has eight Regional Managers and two VPs who work from home and the road. Stores typically have 17 employees on average per location.
The two warehouses have a remote loading system and 20 employees each to load the trucks and fulfill the online orders. The warehouse has 40-foot ceilings and large metal racks to store inventory. The main location is 240K sq ft (22300 st) m) and the Canadian warehouse Is 130K sq ft (12100 sq ml. The forkllfts on the loading docks are equipped with a wireless tablet on board.
A typical store Is reportedly about 60.000 sq ft (5575 sqm) and smaller stores are planned at 25.000 sq ft '2320 sq mi. The locations need to expand the abilities to vendors that need to add setup displays or Interactive kiosks in the stores. The current Infrastructure was installed In 2015 and used wireless N technology in a coverage model. The wiring is CatS. and they are unsure of the fiber connections. The inventory is all placed on the floor when it is delivered to the local store.
Inventory control is handled through Zebra barcode scanners, and they have had a lot of issues in getting signals throughout the stores and this makes monthly inventory difficult. The organization has a small help desk to troubleshoot issues that happen at the retail locations and PC support for the office. The company is looking to upgrade away from the current pbx system later this year. With the need to grow and cut costs, they are interested in moving the data to the cloud but need to get almost real-time inventory control for the online service to function.
The network has all been wired over the last ten years, but with the new systems being all wireless, they have seen the trend to offer wireless to all the vendors for their needs but also would like to allow employees, guests, and contractors all to use it. With the new IT director starting next week, the project has been set by the CTO of the company. The marketing group has asked how they can interact with the customers and get more info, while the IT support desk needs to cut staff in halt.
The. office has an MDF and two IDFs located on floors one and two. The HOF is in the basement, and you have multiple WAN circuits for the HO links. Each store has a local handoff from the cable company (ethernet) In the middle of the store in the office, so distance for the wiring is not an issue.
The customer has budget concerns but does want something that could last 7+ years.
What are two primary concerns of the Stakeholder' (Select two.)
- A. ease of access
- B. future proof
- C. expansion
- D. cost of solution
Answer: B,D
Explanation:
For the stakeholders at ACME Retail, the primary concerns include the cost of the solution and ensuring that the solution is future-proof. Given the company's budget concerns, it is crucial that the chosen network infrastructure offers a good return on investment and aligns with their financial constraints. At the same time, considering the company's growth plans and the rapid evolution of technology, the solution must be scalable and adaptable to future needs. This involves selecting networking equipment and technologies that can support emerging trends, such as increased wireless device usage, cloud computing, and advanced security requirements, without necessitating frequent, costly upgrades. Balancing these concerns will help ACME Retail achieve its operational goals while positioning itself for sustainable growth and innovation.
NEW QUESTION # 39
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 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) and the type used is OS1. Each cabin is connected by a single OM2 pair to the IDF, the maximum length is 60 meters (200 ft). Each technical room is connected by a single OM2 pair 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 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.
Based on best practices, what should you recommend as the correct optic type for the connection between the IDF and the cabins?
- A. 10GBASE-T SFP+ RJ-45 30 m Cat6A Transceiver
- B. 10G SFP+ LC SR 300 m MMF Transceiver
- C. 10G SFP+ LC LRM 220 m MMF Transceiver
- D. 10G LC BiDi 40 km 1330/1270 XCVR
Answer: B
Explanation:
Comprehensive and Detailed Explanation From Exact Extract:
* Cabling Type in Use:Each cabin and technical room is connected to the IDF with a single OM2 multimode fiber pair. The maximum length to cabins is 60 meters, and to technical rooms 100-150 meters.
* Best Practice for 10 GbE over OM2:According to Aruba's Campus Access Design Guides and HPE Aruba CX switch transceiver support matrices:
* OM2 multimode fiber supports 10GBASE-SR optics up to 82 meters.
* Since the maximum run is 60 meters, 10GBASE-SR is fully supported with headroom.
* 10GBASE-LRM can reach 220 m on MMF, but is not required here because the fiber length is much shorter. SR optics are simpler, lower cost, and recommended in best practices when distances are within OM2 limits.
* 10GBASE-T RJ-45 (Cat6A) is not applicable, as the cabling is fiber, not copper.
* BiDi 40 km optics are for long-haul single-mode fiber links, not short multimode fiber runs.
* Aruba Validated Design Reference:Aruba's Validated Solution Guides for Campus Access state that for short multimode connections (OM2/OM3/OM4), the recommended transceiver type is
10GBASE-SR (SFP+ LC) as it provides the most cost-effective and reliable option within the supported reach.
* Requirement Mapping:
* Uplinks to access switches in cabins/technical rooms must be 10 GbE capable.
* The OM2 cabling length (60-150 m) is within the supported distance for 10GBASE-SR.
* Therefore, the correct and most efficient optic choice is 10G SFP+ LC SR 300 m MMF Transceiver.
Final Justification:
Option B is correct because 10GBASE-SR over OM2 supports the required distances, aligns with Aruba design best practices, and avoids unnecessary cost/complexity of LRM or BiDi optics.
Reference Extracts (Aruba Official Study & Design Guides):
* Aruba Campus Access Design Guide: recommended transceiver selection for MMF cabling.
* Aruba CX Transceiver Guide: 10GBASE-SR supports OM2 up to 82 m, OM3 up to 300 m, OM4 up to
400 m.
* Aruba Validated Solution Guide: Always select SR optics for OM2 # 82 m runs as the cost-effective standard.
NEW QUESTION # 40
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