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NEW QUESTION # 57
The clients existing network is experiencing trouble with voice occasionally dropping out on phone calls between office locations, it Is determined that no packet loss is occurring and QOS is likely the cause.
With what phenomenon Is the client currently experiencing issues?
Answer: A
Explanation:
The client is experiencing issues with Jitter, as depicted in Option B. Jitter refers to the variation in time between packets arriving, caused by network congestion, timing drift, or route changes. In voice communications, jitter can manifest as the occasional dropping out of voice on phone calls because the variable delay can affect the steady stream of voice packets needed for a clear conversation. Even when there is no packet loss, high levels of jitter can significantly impact the quality of Voice over IP (VoIP) calls. Quality of Service (QoS) settings are essential in managing jitter, as they can prioritize voice traffic over other types of data, ensuring that voice packets are delivered consistently and in the correct order to minimize delays and prevent call quality degradation. Aruba Campus Access solutions would typically include QoS features to manage and mitigate jitter on the network.
NEW QUESTION # 58
The current IT staff is used to working with legacy Aruba OS-S (ProCurve> equipment. They are worried that they cannot handle Aruba OS-CX switches due to the different command syntax. What are two ways to make the transition easier for them? (Select two.)
Answer: A,B
Explanation:
To ease the transition for IT staff accustomed to legacy Aruba OS-S (ProCurve) equipment when moving to Aruba OS-CX switches, two effective approaches are creating aliases (Option A) and using the CLI Reference Guide for Aruba OS-CX, Aruba OS-Switch, Comware, and Cisco IOS (Option B). Aliases allow the creation of custom command shortcuts or mappings in Aruba OS-CX, which can mimic or resemble the commands staff are familiar with from Aruba OS-S, making the command-line interface (CLI) more intuitive for them.
The CLI Reference Guide is an invaluable resource that provides a comparative view of commands across different operating systems, including Aruba OS-CX and Aruba OS-S, helping staff understand the equivalent commands and functionalities in the new OS-CX environment. Both these tools can significantly reduce the learning curve and help the IT staff become proficient with Aruba OS-CX switches more quickly.
NEW QUESTION # 59
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?
Answer: A
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 # 60
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 has decided that more critical switch stacks supporting Contact Center resources will need to support greater than 600W of CL4 PoE and have redundant power supplies These stacks will have approximately six members.
What would be the most economical choice Aruba switch series to meet these requirements?
Answer: B
Explanation:
The Aruba CX 6300F Switch Series is well-suited for environments requiring high PoE power and redundancy in power supplies, especially for critical applications like supporting contact center resources.
This series offers robust PoE capabilities, often exceeding 600W of Class 4 PoE power, making it ideal for powering multiple high-powered devices. Additionally, the Aruba CX 6300F supports stack configurations and redundant power supplies, ensuring high availability and reliability for critical network infrastructures. Its economical pricing, combined with high performance and reliability, makes it the most cost-effective choice for the client's requirements.
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 would like to ensure full wireless coverage in its 40 m x 40 m (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%?
Answer: D
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 # 62
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