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| Section | Weight | Objectives |
|---|---|---|
| Propose the Solution | 21% | - Present solution and business value - Create design documentation and diagrams - Address alternatives and risk mitigation - Develop implementation roadmap |
| Analyze Requirements | 26% | - Evaluate design options and trade-offs - Map requirements to technical capabilities - Document assumptions and limitations - Perform capacity and performance analysis |
| Discover Requirements | 21% | - Assess current infrastructure and constraints - Identify dependencies and risk factors - Collect technical, operational and compliance requirements - Define project goals and business objectives |
| Architect the Solution | 32% | - Plan redundancy, security and high availability - Design high-level network topology - Select Aruba products and solutions - Define overlay and underlay architecture - Verify alignment with requirements |
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NEW QUESTION # 79
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 10GbE 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 quest 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, what should be recommended as the most cost-effective switch model for the technical rooms?
Answer: A
Explanation:
Port Count: The 6200M 24G switch provides enough Gigabit Ethernet ports to accommodate the technical rooms. Since each technical room is connected to a single access switch, this model strikes a balance between adequate port density and minimizing unused ports.
Power over Ethernet (PoE): Class 4 PoE capabilities are sufficient for powering devices typically used in technical rooms, such as network devices and potentially cameras or phones, without the need for excessive power delivery.
10GbE Uplinks: The switch has 4 SFP+ ports for uplinks, which can be utilized to connect to the distribution layer with 10GbE, meeting the requirement for increased network traffic handling.
Cost-Effectiveness: The 6200M series is designed for mid-sized environments, making it a more economical choice compared to higher-end models that may offer features beyond what is needed for the technical rooms.
NEW QUESTION # 80
What is true about 1000 Base-LX single mode transceivers?
Answer: A
Explanation:
The 1000Base-LX standard is designed primarily for single-mode fiber (SMF) but can also operate over multi- mode fiber (MMF). However, when using a 1000Base-LX (long wavelength) transceiver with older multi- mode fiber like OM1 ($62.5/125$ $\mu m$), a specific technical issue called Differential Mode Delay (DMD) occurs.
* Mode Conditioning Patch (MCP) Cable: To mitigate DMD, an MCP cable must be used when connecting a 1000Base-LX transceiver to OM1 or OM2 multi-mode fiber for distances up to 550 meters. This cable offsets the laser launch into the fiber core to ensure the signal propagates correctly.
* OM1 Specifics: OM1 fiber has a smaller bandwidth-distance product compared to newer standards.
Without the MCP, the signal distortion makes the 550m distance unattainable or unreliable.
* Comparison: * OS1 (Option D): This is single-mode fiber. 1000Base-LX transceivers are native to single-mode and do not require mode conditioning cables for OS1/OS2.
* OM5 (Option A): While technically possible, MCPs are typically associated with the legacy
$62.5$ $\mu m$ (OM1) and $50$ $\mu m$ (OM2) fiber types.
* OM2 (Option C): Standard practice dictates that OM2 also requires an MCP for 1000Base-LX at
550m to avoid DMD, making "doesn't need" incorrect.
NEW QUESTION # 81
What is one use case for designing a 2-tier campus LAM instead of using a 3-tier?
Answer: C
Explanation:
A 2-tier campus LAN architecture, consisting of the core and access layers, is typically suitable for smaller campuses or networks with limited numbers of wiring closets. This simplified architecture eliminates the need for a dedicated aggregation layer, which is more common in larger, more complex network environments (the 3-tier architecture). In a small campus setting with only a few wiring closets, a 2-tier design can provide sufficient performance and scalability, reducing complexity and potentially lowering costs. This architecture allows for direct connectivity between the access layer, where end devices connect to the network, and the core layer, which routes traffic to and from the campus network. The use of a 2-tier architecture in such scenarios is driven by the network's size and the simplicity of its requirements, making it an efficient and effective choice.
NEW QUESTION # 82
'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) During the presentation of your design to the CTO of 'Don't Buy at Us' you were informed about the updated fiber infrastructure that Don't Buy at Us' has installed in HQ2.
The core stack is Installed in the MDF and per IDF there is one access stack installed. Based on best practice, what is the most cost-effective update to the switch BOM?
Answer: D
Explanation:
This option uses the Aruba 6200F access switches, which are appropriate for a cost-effective solution while meeting the uplink requirements. The selection of optics (SR for shorter distances and LR for longer distances) is based on the fiber infrastructure provided, ensuring efficient connectivity across the MDF and IDFs.
NEW QUESTION # 83
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 would take 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 802.1 x wired or wireless authentications as well as 802.1 x 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?
Answer: D
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 # 84
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