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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Architect the Solution | 32% | - Design high-level network topology - Define overlay and underlay architecture - Select Aruba products and solutions - Verify alignment with requirements - Plan redundancy, security and high availability |
| Topic 2: Analyze Requirements | 26% | - Document assumptions and limitations - Map requirements to technical capabilities - Perform capacity and performance analysis - Evaluate design options and trade-offs |
| Topic 3: Discover Requirements | 21% | - Define project goals and business objectives - Assess current infrastructure and constraints - Identify dependencies and risk factors - Collect technical, operational and compliance requirements |
| Topic 4: Propose the Solution | 21% | - Address alternatives and risk mitigation - Develop implementation roadmap - Present solution and business value - Create design documentation and diagrams |
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NEW QUESTION # 24
'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 Aruba ESP architecture. You have treated the design for HQ? 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 2» ICOG0E DAC)
Access Slack: 10 x Slack of Aruba 6200F 48G Class4 PoE 4SFP- 740W each stack has A members. VSF with 10GbE VSF links) 12 x 10GbE uplink pet 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-OISTR) next to the HQ2.
2. Only two pairs of 0S1 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-DI5TRI is certified for 25GbE.
4. EMEA-DlSTR needs at least 7 x stack of Aruba 48 ports switches (each stack has 4 members).
Whichanswer based on best practice is presenting the correct Switch BOM tor the updated design?
Answer: D
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 # 25
Hotspot Question
Mark the layer where Dynamic Multicast Optimization should be activated.
Answer:
Explanation:
NEW QUESTION # 26
What are the advantages of using a VSX-pair instead of two discrete switches to connect servers, storage, firewalls, and other workloads?
Answer: C
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 # 27
The clients existing network isexperiencing 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 # 28
What is true about 1000 Base-LX single mode transceivers?
Answer: C
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 # 29
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