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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Management and Monitoring | 6% | - Automation and API usage - Aruba Central management and monitoring - Monitoring tools: SNMP, Syslog, NetFlow |
| Topic 2: Troubleshooting | 6% | - Performance and connectivity issue resolution - Fault isolation and troubleshooting methodologies |
| Topic 3: Network Resiliency and Virtualization | 8% | - VSX, VSF, VRF, VxLAN technologies - Redundancy and fault tolerance mechanisms |
| Topic 4: Switching | 14% | - VLAN design, trunking, spanning tree - Layer 2 / Layer 3 switching implementation - High availability at access layer |
| Topic 5: Authentication and Authorization | 8% | - AAA concepts and implementation - 802.1X, MAC authentication, ClearPass integration |
| Topic 6: WLAN | 17% | - WLAN architecture and AP deployment - RF fundamentals and optimization - WLAN security and connectivity modes |
| Topic 7: Connectivity | 8% | - Network architectures and technologies - Network device deployment |
| Topic 8: Network Stack | 4% | - 802.11, 802.1, and 802.3 technologies |
| Topic 9: Performance Optimization | 7% | - QoS implementation and traffic management - Network performance tuning |
| Topic 10: Security | 9% | - Network security standards and policies - Guest access and threat mitigation - Secure access control and segmentation |
| Topic 11: Routing | 13% | - Routing topologies and protocols - OSPF, policy-based routing implementation |
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NEW QUESTION # 155
Which statements are true about VSX LAG? (Select two.)
Answer: D,E
Explanation:
The correct answers are A and D.
According to the web search results, VSX LAG is a feature that allows multiple PSKs to be used on a single SSID, providing device-specific or group-specific passphrases for enhanced security and deployment flexibility for headless IoT devices1.VSX LAGs span both aggregation switches and appear as one device to partner downstream or upstream devices or both when forming a LAG with the VSX pair2.
One of the statements that is true about VSX LAG is that the total number of configured links may not exceed
8 for the pair or 4 per switch1. This means that a VSX LAG across a downstream switch can have at most a total of eight member links, and a switch can have a maximum of four member links.When creating a VSX LAG, it is recommended to select an equal number of member links in each segment for load balancing1.
Another statement that is true about VSX LAG is that outgoing traffic is preferentially switched to local members of the LAG2. This means that when active forwarding and active gateway are enabled, north-south and south-north traffic bypasses the ISL link and uses the local ports on the switch.This optimizes the traffic path and reduces the load on the ISL link2.
The other statements are false or not relevant for VSX LAG. Outgoing traffic is not switched to a port based on a hashing algorithm, which may be either switch in the pair. This is a characteristic of MLAG (Multi-Chassis Link Aggregation), which is a different feature from VSX LAG. LAG traffic is not passed over VSX ISL links only while upgrading firmware on the switch pair. This is a scenario that may occur when performing hitless upgrades, which is a feature that allows software updates without impacting network availability. The number of VSX lags that can be configured on all 83xx and 84xx model switches is not 255, but depends on the switch model and firmware version. For example, the AOS-CX 10.04 supports up to 64 VSX lags for 8320 switches and up to 128 VSX lags for 8325 and 8400 switches.
NEW QUESTION # 156
A customer is concerned about me unprotected traffic between an AOS-CX switch and a gateway, running on AOStO. What is a feasible option to protect this traffic?
Answer: B
Explanation:
According to the Aruba Documentation Portal1, PAPI (Port Aggregation Protocol) is a protocol that allows multiple physical ports to be aggregated into a single logical port for increased bandwidth and performance.
PAPI can be used between AOS-CX switches and gateways, or between AOS-CX switches and other devices.
Option A: Implement an IPSec tunnel to protect PAPI between the AOS-CX switches and the gateway This is because option A shows how to implement an IPSec tunnel between two devices using the interface command and the ipsec command. An IPSec tunnel can provideencryption and authentication for PAPI traffic between two devices, such as an AOS-CX switch and a gateway2.
Therefore, option A is a feasible option to protect this traffic.
I hope this helps you. If you need more information, please let me know.
1:
https://www.arubanetworks.com/techdocs/AOS-CX/10.06/HTML/5200-7727/Content/Chp_prev_traf_loss/Act_g
https://community.arubanetworks.com/blogviewer?blogkey=989fc43a-e0df-42db-9c0b-f96d6565a1fa
NEW QUESTION # 157
How is Dynamic Multicast Optimization (DMO) implemented in an HPE Aruba wireless network?
DMO is configured individually tor each SSID in use in the network.
The AP uses OOS to provide equal air time for multicast traffic,
DMO is configured globally for each SSID in use in the network.
The controller converts multicast streams into unicast streams.
Answer: B
Explanation:
The correct answer is
NEW QUESTION # 158
How is Dynamic Multicast Optimization (DMO) implemented in an HPE Aruba wireless network?
Answer: C
Explanation:
Explanation
The correct answer is A. DMO is configured individually for each SSID in use in the network.
DMO is a feature that allows the AP to convert multicast streams into unicast streams over the wireless link.
This enhances the quality and reliability of streaming video, while preserving the bandwidth available to the non-video clients. DMO is configured individually for each SSID in use in the network, as different SSIDs may have different multicast requirements.
According to the Aruba document Configuring WLAN Settings for an SSID Profile, one of the steps to configure DMO is:
Dynamic multicast optimization: Select Enabled to allow IAP to convert multicast streams into unicast streams over the wireless link. Enabling Dynamic Multicast Optimization (DMO) enhances the quality and reliability of streaming video, while preserving the bandwidth available to the non-video clients.
The other options are incorrect because:
B: The AP does not use QoS to provide equal air time for multicast traffic. QoS is a feature that prioritizes different types of traffic based on their importance and latency sensitivity. QoS does not affect how multicast streams are transmitted over the wireless link.
C; DMO is not configured globally for each SSID in use in the network. DMO is configured individually for each SSID, as different SSIDs may have different multicast requirements.
D: The controller does not convert multicast streams into unicast streams. The AP does the conversion, as it is closer to the wireless clients and can optimize the transmission based on the client capabilities and channel conditions.
NEW QUESTION # 159
What is a primary benefit of BSS coloring?
Answer: D
Explanation:
The primary benefit of BSS coloring is D. BSS color tags are applied to Wi-Fi channels and can reduce the threshold for interference.
BSS coloring is a mechanism that allows Wi-Fi 6 devices to mark each frame with a color code that identifies the BSS (Basic Service Set) it belongs to. This helps differentiate between frames from different BSSs that share the same channel and avoid unnecessary collisions and backoffs. BSS coloring also introduces an adaptive threshold for interference, which means that Wi-Fi 6 devices can adjust the signal strength value that determines whether a channel is busy or not based on the current network environment. This allows for more efficient use of spectrum and higher throughput in dense scenarios12.
NEW QUESTION # 160
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