HPE6-A85 Questions – Truly Beneficial For Your HP Exam (Updated 134 Questions) [Q64-Q78]

The Aruba CX 6300 Series is an ideal access switch for medium to high-density client environments, offering a range of models that can accommodate various port densities and types. For a distribution rack supporting
200-380 clients, printers, and APs, the CX 6300 provides the necessary port density and performance capabilities, including high-speed uplinks, support for Class 4 PoE (PoE+), and stacking capabilities. This series is cost-effective and designed for enterprises requiring reliable connectivity and consistent performance. The other options, such as the CX 6400, CX 6200, and CX 6000, may either be over-specified and more expensive (CX 6400), not offer the necessary port density (CX 6200), or not exist in the product line (CX 6000).

Wireless client roaming decisions are made by the client device based on its own criteria, such as signal strength, noise level, data rate, etc. The network can influence the client’s roaming decision by providing information such as neighbor reports, load balancing, band steering, etc., but the final decision is up to the client.References:https://www.arubanetworks.com/techdocs/Instant_86_WebHelp/Content/instant-ug/wlan- roaming/client-roaming.htm Wireless client roaming decisions are primarily made by the client device itself. The client device monitors the signal strength and quality of the current connection and decides to roam to a different Access Point (AP) when the current signal deteriorates below a certain threshold or a better option is available. While APs and controllers can provide information and support for roaming decisions through protocols like 802.11k and
802.11v, the ultimate decision to roam is made by the client device based on its algorithms and thresholds.

In a 2.4GHz WLAN environment, channels 1, 6, and 11 are recommended for use simultaneously to avoid co-channel interference because these channels do not overlap with each other. Each of these channels is separated by enough frequency space to ensure that the signals do not interfere, which is not the case with other channel combinations.

Explanation:
Features: 1) Clustered Instant Access Points Aruba OS version: a) Aruba OS 8 Features: 2) Dynamic Radius Proxy Aruba OS version: a) Aruba OS 8 Features: 3) Scales to more than 10,000 devices Aruba OS version: b) Aruba OS 10 Features: 4) Unifies wired and wireless management Aruba OS version: a) Aruba OS 8 Features: 5) Wireless controllers Aruba OS version: a) Aruba OS 8 ArubaOS is the operating system for all Aruba Mobility Controllers (MCs) and controller-managed wireless access points (APs). ArubaOS 8 delivers unified wired and wireless access, seamless roaming, enterprise grade security, and a highly available network with the required reliability to support high density environments1.
Some of the features of ArubaOS 8 are:
– Clustered Instant Access Points: This feature allows multiple Instant APs to form a cluster and share configuration and state information. This enables seamless roaming, load balancing, and fast failover for clients2.
– Dynamic Radius Proxy: This feature allows an MC to act as a proxy for RADIUS authentication requests from clients or APs. This simplifies the configuration and management of RADIUS servers and reduces the network traffic between MCs and RADIUS servers3.
– Wireless controllers: Aruba wireless controllers are devices that centrally manage and control the wireless network. They provide functions such as AP provisioning, configuration, security, policy enforcement, and network optimization.
ArubaOS 10 is the next-generation operating system that works with Aruba Central, a cloud-based network management platform. ArubaOS 10 delivers greater scalability, security, and AI-powered optimization across large campuses, branches, and remote work environments. Some of the features of ArubaOS 10 are:
– Scales to more than 10,000 devices: ArubaOS 10 can support up to 10,000 devices per cluster, which is ten times more than ArubaOS 8. This enables customers to scale their networks without compromising performance or reliability.
– Unifies wired and wireless management: ArubaOS 10 provides a single platform for managing both wired and wireless devices across the network. Customers can use Aruba Central to configure, monitor, troubleshoot, and update their devices from anywhere.
Both ArubaOS 8 and ArubaOS 10 share some common features, such as:
– Unifies wired and wireless management: Both operating systems provide unified wired and wireless access for customers who use Aruba switches and APs. Customers can use a single interface to manage their entire network infrastructure1.
References:
1 https://www.arubanetworks.com/resource/arubaos-8-fundamental-guide/
2 https://www.arubanetworks.com/techdocs/Instant_86_WebHelp/Content/instant-ug/iap- maintenance/clus
3 https://www.arubanetworks.com/techdocs/ArubaOS_86_Web_Help/Content/arubaos-solutions/1- overvie
https://www.arubanetworks.com/products/networking/controllers/
https://www.arubanetworks.com/products/network-management-operations/arubaos/
https://blogs.arubanetworks.com/solutions/making-the-switch/
https://www.arubanetworks.com/products/network-management-operations/aruba-central/

Manual provisioning is a method to add switches to Aruba Central without using DHCP or DNS. It requires the user to enter the switch serial number, MAC address, and activation code in Aruba Central, and then configure the switch with the same activation code and Aruba Central’s IP address.

Explanation
The option that fulfills the requirements is to create individual SSIDs with unique PSK for each loT class, using 2.4 GHz and 5 GHz band. This option provides the following benefits:
Each loT class has a unique PSK that can be used to apply a different security policy as a role. This enhances the security and flexibility of the WLAN network.
Individual SSIDs allow for better isolation and management of different loT classes. This improves the performance and scalability of the WLAN network.
Using both 2.4 GHz and 5 GHz bands allows for backward compatibility with loT devices that operate only with 802.11b, which uses the 2.4 GHz band . It also allows for higher throughput and less interference for loT devices that support 802.11a, 802.11g, 802.11n, or 802.11ac, which use the 5 GHz band2.
The other options do not fulfill the requirements because:
Single SSID with MPSK for each loT class using 5 GHz and 6 GHz bands: This option does not support loT devices that operate only with 802.11b, which uses the 2.4 GHz band . It also does not optimize the performance of the WLAN network, as a single SSID may cause co-channel interference and congestion among different loT classes.
Single SSID with MPSK for each loT class using 2.4 GHz and 5 GHz bands: This option does not optimize the performance of the WLAN network, as a single SSID may cause co-channel interference and congestion among different loT classes.
Individual SSIDs with unique PSK for each loT class, using 5 GHz and 6 GHz bands: This option does not support loT devices that operate only with 802.11b, which uses the 2.4 GHz band1.
References: 1 https://en.wikipedia.org/wiki/IEEE_802.11b-1999 2
https://www.lifewire.com/wireless-standards-802-11a-802-11b-g-n-and-802-11ac-816553

Virtual Switching Extension (VSX) is a feature that allows two Aruba CX switches to operate as a single logical device with a single control plane and data plane. VSX provides high availability, scalability, and simplified management for campus and data center networks3. In VSX, one switch is designated as the primary switch and the other as the secondary switch. The primary switch owns and responds to ARP Address Resolution Protocol. ARP is a communication protocol used for discovering the link layer address, such as a MAC address, associated with a given internet layer address, typically an IPv4 address. This mapping is a critical function in the Internet protocol suite. requests for the virtual IP address of the VSX pair4. The virtual IP address is used as the default gateway for clients connected to the access switch. If the primary switch fails, the secondary switch takes over the virtual IP address and continues to forward traffic for the clients5.
References:
3 https://www.arubanetworks.com/techdocs/AOS-CX_10_04/UG/Content/cx-ug/vsx/vsx-overview.htm
4 https://www.arubanetworks.com/techdocs/AOS-CX_10_04/UG/Content/cx-ug/vsx/vsx-ip- addressing.htm
5 https://www.arubanetworks.com/techdocs/AOS-CX_10_04/UG/Content/cx-ug/vsx/vsx-failover.htm

The correct statement when comparing 5 GHz and 6 GHz channels with identical channel widths is that 5 GHz channels travel different distances and provide different throughputs to clients compared to 6 GHz channels. This statement reflects the fact that higher frequency signals tend to have higher attenuation Attenuation is a general term that refers to any reduction in signal strength during transmission over distance or through an object or medium. Higher attenuation means that higher frequency signals have shorter range and lower throughput than lower frequency signals.
Some facts about this statement are:
– 5 GHz channels have lower frequency than 6 GHz channels, which means they have lower attenuation than 6 GHz channels.
– Lower attenuation means that 5 GHz channels can travel longer distances and provide higher throughputs to clients than 6 GHz channels with identical channel widths.
– However, the difference in distance and throughput between 5 GHz and 6 GHz channels may not be significant in indoor environments where there are many obstacles and reflections that affect signal propagation.
– The advantage of using 6 GHz channels over 5 GHz channels is that they offer more spectrum availability, less interference, and more non-overlapping channels than 5 GHz channels.
The other options are not correct because:
– 5 GHz channels travel the same distances and provide different throughputs to clients compared to 6 GHz channels: This option is false because 5 GHz channels do not travel the same distances as 6 GHz channels due to higher attenuation of higher frequency signals.
– 5 GHz channels travel the same distances and provide the same throughputs to clients compared to 6 GHz channels: This option is false because 5 GHz channels do not travel the same distances or provide the same throughputs as 6 GHz channels due to higher attenuation of higher frequency signals.
– 5 GHz channels travel different distances and provide the same throughputs to clients compared to 6 GHz channels: This option is false because 5 GHz channels do not provide the same throughputs as 6 GHz channels due to higher attenuation of higher frequency signals.

These commands might help troubleshoot this issue as they check various aspects of the connectivity between the edge switch and the core switch, such as Layer 3 reachability, Layer 2 adjacency, LACP configuration and status, VLAN trunking configuration, and interface status.
References: https://www.arubanetworks.com/techdocs/AOS-CX_10_04/CLI/GUID-8F0E7E8B-0F4B-
4A3C-AE

The signal to noise ratio (SNR) is a measure that compares the level of a desired signal to the level of background noise. SNR is defined as the ratio of signal power to the noise power, often expressed in decibels (dB). A high SNR means that the signal is clear and easy to detect or interpret, while a low SNR means that the signal is corrupted or obscured by noise and may be difficult to distinguish or recover3. To calculate the SNR in dB, we can use the following formula:
SNR (dB) = Signal power (dBm) – Noise power (dBm)
In this question, we are given that the noise floor measures -90 dBm (0.000000001 milliwatts) and the receiver’s signal strength is -65 dBm (0.000316 milliwatts). Therefore, we can plug these values into the formula and get:
SNR (dB) = -65 dBm – (-90 dBm) SNR (dB) = -65 dBm + 90 dBm SNR (dB) = 25 dBm Therefore, the correct answer is that the SNR is 25 dBm.

Explanation
EAP-TLS is an authentication method that requires client certificates when authenticating to the network. It provides mutual authentication between the client and the server using public key cryptography and digital certificates.
References:https://www.arubanetworks.com/techdocs/ClearPass/6.9/Guest/Content/CPPM_UserGuide/EAP-TLS

The CX 6300 series is designed for high-density access and aggregation with support for large VSF stacks, high PoE capacity, and scalability, making it ideal for environments like hospitals with hundreds of connected devices per rack.

On Aruba switches, the Link Layer Discovery Protocol (LLDP) is enabled by default on all ports. This protocol is an industry-standard network discovery protocol that is used for network devices to advertise their identity, capabilities, and neighbors on a locally managed network, typical in an IEEE 802 network. This is beneficial for network mapping and troubleshooting purposes. Since LLDP is enabled by default, there is no need for any additional configuration on Switch 1 port 1/1/24 to receive LLDP messages from Router 1, as long as LLDP is not disabled on the port.

If the AP has internet access but does not receive its configuration from Aruba Central, one possible reason is that the AP does not have a license assigned in Aruba Central. A license is required for each AP to be managed by Aruba Central.