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| Section | Weight | Objectives |
|---|---|---|
| Discover Requirements | 21% | - Collect information - Identify the objectives - Identify the current environment (possible constraints, depending on the project) - Define the goals |
| Analyze Requirements | 26% | - Determine possible high-level solutions - Document assumptions - Map the requirements into technical solutions - Evaluate the proposed solution against known dependencies and project objectives |
| Architect the Solution | 32% | - Design high-level topologies - Select the correct products - Determine the appropriate overlay and underlay design - Identify the solution options that meet the business needs - Validate that the design meets the original requirements |
| Propose the Solution | 21% | - Create the final design - Create the design documentation - Present the solution |
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NEW QUESTION # 59
What are the considerations when using existing MMF and upgrading to equipment capable of 10 GbE speeds? (Select two)
Answer: B,C
Explanation:
When upgrading existing Multimode Fiber (MMF) infrastructure to accommodate equipment capable of 10 GbE speeds, two primary considerations are the length of the MMF fiber (Option A) and the type of MMF fiber (Option C). The length of the fiber impacts the signal quality and bandwidth capacity, with longer lengths potentially requiring signal conditioning or different types of fiber to support higher speeds. The type of MMF fiber, such as OM1, OM2, OM3, or OM4, significantly affects its bandwidth capabilities and distance limitations at 10 GbE speeds. OM3 and OM4 fibers are designed to support 10 GbE transmissions over longer distances compared to OM1 and OM2, making them more suitable for upgrades to higher speeds. Understanding these factors is crucial to ensure the existing fiber infrastructure can support the desired network performance without extensive modifications or replacements.
NEW QUESTION # 60
What possible issue with the cote switch selection do you see in regards to the customers' requirements?
Answer: C
Explanation:
* Customer Requirement Recap (cruise line scenario):
* Each ship has two core switches in the MDF.
* Each core connects to up to 10 distribution switches in IDFs.
* Uplinks between core and distribution are 25 GbE SMF links.
* Cabins/technical rooms connect to distribution switches via 10 GbE uplinks.
* Only 8 uplinks per core switch are required to meet the design.
* Issue Identified:
* The selected core switch platform provides dozens of 25/40/100 GbE ports, far exceeding what is needed for this environment.
* With only 8 ports in use per core, that leaves ~40 unused ports.
* This creates a cost inefficiency - the customer is paying for hardware capacity that will remain idle.
* Why the Correct Answer is B:
* The main "issue" is not about lack of capability (uplinks and VSX are supported).
* The issue is about overprovisioning - the core switch selection results in a large number of unused ports, which is against the CIO's requirement to limit unused capacity and avoid waste.
* Why Not the Other Options:
* A. Core will not support 25 GbE downlinks # Incorrect. The selected core switches do support
25 GbE uplinks.
* C. Not enough ports for VSX links # Incorrect. Core switches only require a few ports for VSX interconnect, which is easily supported.
* D. Core will not support 10 GbE downlinks to cabins # Incorrect. Core switches don't connect directly to cabins; those connections terminate at the distribution layer.
Aruba Design Guide Reference:
* Aruba ESP Campus Design Principles: Switch sizing should consider right-sizing the port count to avoid excessive unused capacity.
* Aruba Validated Solution Guides: Core switches should be selected for performance, scalability, and efficiency - not overspec'd beyond realistic need.
Final Justification:
The issue with the customer's core switch selection is not about functionality, but about efficiency. Only 8 uplinks per core are needed, leaving ~40 ports unused - which contradicts the CIO's goal of minimizing unused ports.
NEW QUESTION # 61
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 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? (Choose two.)
Answer: A,C
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 # 62
What is the best practice for using VSX at the core of a 3-tier design?
Answer: A
Explanation:
In a 3-tier network design consisting of core, aggregation, and access layers, the implementation of Virtual Switching Extension (VSX) at the core is considered a best practice when the aggregation layer functions primarily at Layer 3 with routing protocols like OSPF facilitating traffic forwarding between the core and aggregation layers. This design choice, as verified by Aruba Campus Access documents, leverages the high availability and redundancy features of VSX technology while maintaining efficient and scalable routing at the aggregation layer. Implementing VSX at the core in such a scenario ensures seamless failover and redundancy, minimizing the risk of downtime and ensuring consistent performance across the network. The core layer, equipped with VSX, provides a robust and resilient backbone for the network, facilitating efficient traffic management and routing decisions, which is critical for large-scale enterprise networks.
NEW QUESTION # 63
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.
The customer would like to host all the applications at the HQ Data Center.
Which design would meet the customer's requirements?
Answer: C
Explanation:
For ACME Retail, which aims to host all applications at the HO Data Center and has multiple locations spread across different geographical areas, the Aruba SD-Branch Architecture would be the most suitable design to meet their requirements. This architecture provides a simplified, integrated branch networking solution combining SD-WAN, LAN, and security features. It enables centralized management and control, allowing ACME Retail to efficiently route traffic from branch locations to the HO Data Center, ensuring secure and reliable access to applications. The SD- Branch solution can accommodate the company's growth and adapt to changing network demands, making it an ideal choice for a scalable and flexible network infrastructure that supports ACME Retail's business objectives.
NEW QUESTION # 64
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