The Best HPE6-A85 Exam Study Material Premium Files and Preparation Tool (Dec-2023) [Q27-Q48]

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The Best HPE6-A85 Exam Study Material Premium Files and Preparation Tool (Dec-2023)

Get Instant Access to HPE6-A85 Practice Exam Questions

The HP HPE6-A85 exam consists of 60 multiple-choice questions that you need to complete within 90 minutes. The questions in the exam are designed to test your knowledge and skills in various areas, including ArubaOS switches, Aruba Instant access points, and Aruba AirWave. You must score at least a passing score of 70% to earn the certification.

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QUESTION 27
Match the feature to the Aruba OS version (Matches may be used more than once.)

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 infrastructure
https://www.arubanetworks.com/resource/arubaos-8-fundamental-guide/ 2
https://www.arubanetworks.com/techdocs/Instant_86_WebHelp/Content/instant-ug/iap-maintenance/clust
3
https://www.arubanetworks.com/techdocs/ArubaOS_86_Web_Help/Content/arubaos-solutions/1-overview
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/

QUESTION 28
The noise floor measures 000000001 milliwatts, and the receiver’s signal strength is -65dBm. What is the Signal to Noise Ratio?

35 dBm

15 dBm

45 dBm

25 dBm

QUESTION 29
Match the phase of message processing with the Open Systems interconnection (OSl) layer.

QUESTION 30
What does the status of “ALFOE” mean when checking LACP with “show lacp interfaces'”?

The interface on the local switch is configured as static-LAG

LACP is not configured on the peer side

LACP is in a synchronizing process

LACP is working fine with no problems

Explanation
The status of “ALFOE” means that LACP Link Aggregation Control Protocol (LACP) is a network protocol that provides dynamic negotiation of link aggregation between two devices. LACP allows multiple physical links to be combined into a single logical link for increased bandwidth, redundancy, and load balancing. LACP is defined in IEEE 802.3ad standard. is working fine with no problems when checking LACP with “show lacp interfaces”. The status of “ALFOE” is an acronym that stands for:
A: Active – The interface is actively sending LACP packets to negotiate link aggregation with the peer device.
L: Link Up – The interface has physical connectivity with the peer device.
F: Aggregatable – The interface can be aggregated with other interfaces into a single logical link.
D: Synchronized – The interface has successfully negotiated link aggregation parameters with the peer device and can transmit or receive traffic on the logical link.
E: Collecting/Distributing – The interface is collecting incoming traffic from the peer device and distributing outgoing traffic to the peer device on the logical link.
The other options are not correct because:
The interface on the local switch is configured as static-LAG: This option is false because static-LAG does not use LACP to negotiate link aggregation. Static-LAG requires manual configuration of link aggregation parameters on both devices and does not have any status indicators.
LACP is not configured on the peer side: This option is false because if LACP is not configured on the peer side, the status of the interface would be “ALF-” instead of “ALFOE”. This means that the interface would not be synchronized or collecting/distributing with the peer device.
LACP is in a synchronizing process: This option is false because if LACP is in a synchronizing process, the status of the interface would be “ALF-O” instead of “ALFOE”. This means that the interface would not be collecting/distributing with the peer device.
References:
https://www.arubanetworks.com/techdocs/AOS-CX_10_08/NOSCG/Content/cx-noscg/lag/lag-overview.htm
https://www.arubanetworks.com/techdocs/AOS-CX_10_08/NOSCG/Content/cx-noscg/lag/lag-lacp.htm
https://www.arubanetworks.com/techdocs/AOS-CX_10_08/NOSCG/Content/cx-noscg/lag/lag-lacp-status.htm

QUESTION 31
What is the correct order of the TCP 3-Way Handshake sequence?

QUESTION 32
When would you bond multiple 20MHz wide 802.11 channels?

To decrease the Signal to Noise Ratio (SNR)

To increase throughput between the client and AP

To provision highly available AP groups

To utilize high gain omni-directional antennas

QUESTION 33
When measuring signal strength, dBm is commonly used and 0 dBm corresponds to 1 mW power.
What does -20 dBm correspond to?

.-1 mW

.01 mw

10 mW

1mW

QUESTION 34
Which commands are used to set a default route to 10.4.5.1 on an Aruba CX switch when ln-band management using an SVl is being used?

iP default-gateway 10.4.5.1

ip route 0 0 0.070 10.4 5.1 vrf mgmt

ip route 0.0 0 0/0 10.4.5.1

default-gateway 10.4.5.1

QUESTION 35
Based on the “snow ip route” output on an AruDaCX 8400. what type of route is “10.1 20 0/24, vrf default via
10.1.12.2. [1/0]”?

local

static

OSPF

connected

QUESTION 36
A network technician has successfully connected to the employee SSID via 802 1X Which RADIUS message should you look for to ensure a successful connection?

Authorized

Access-Accept

Success

Authenticated

QUESTION 37
When performing live firmware upgrades on Aruba APs. which technology partitions all the APs based on RF neighborhood data minimizing the impact on clients?

Aruba ClientMatch

Aruba Ai insights

Aruba AirMatch

Aruba ESP

QUESTION 38

Based on the given topology, what is the requirement on an Aruba switch to enable LLDP messages to be received by Switch 1 port 1/1/24. when Router 1 is enabled with LLDP?

LLDP is enabled by default

global configuration lldp enable

int 1/1/24, lldp receive

int 1/1/24, no cdp

QUESTION 39
Which statement about manual switch provisioning with Aruba Central is correct?

Manual provisioning does not require DHCP and requires DNS

Manual provisioning does not require DHCP and does not require DNS

Manual provisioning requires DHCP and does not require DNS

Manual provisioning requires DHCP and requires DNS

QUESTION 40
After having configured the edge switch uplink as requested your colleague says that they have failed to ping the core You ask your colleague to verify the connection is plugged in and the switch is powered on They confirm that both are correct You attempt to ping the core switch and confirm that the ping is failing.
Knowing the nature of this deployment, what commands might you use to troubleshoot this issued

Ping 10.11 1 – ping the core to attempt to verify connectivity Show trunk – to verify if the LAG interface was correctly added to the switch Show spanning tree – to check for spanning-tree blocked states Show port-access clients interface all – to view any port-access blocking states or failed authentication attempts on all interfaces Show run interface vlan20 – to double check the layer 3 svi configuration is correct for l_3 connectivity Show lldp neighors – to verify whether you are able to see the Core as an L2 neighbor to verify if the correct links are plugged in to the correct ports

diagnostic diag cable-diag 1/1/51 diag cable-diag 1/1/52 – to view diagnostic information for the physical link to get a status on any interruptions to Layer 1 connectivity, show ip route – to verify that the default gateway is present in the routing table show ip ospf – to check whether there is a layer 3 routing protocol enabled show ip dns – to view whether there is a valid dns source

Ping 10.1.1.1 – ping the core to attempt to verify connectivity show lacp agg – to verify which link aggregations are currently configured using which physical ports show lacp int – to verify the LACP status and whether any links are blocking in your topology show lldp neighors – to verify whether you are able to see the Core as an L2 neighbor to verify if the correct links are plugged in to the correct ports show run interface 1/1/51.1/1/52-to ensure the physical interfaces are no-shut and members of the lag show run interface lag 1 – to ensure the correct vlan trunking configuration is applied to the logical interface show run int vlan 20 – to ensure you have the L3 SVI no shut and configured in the correct subnet

Show run – to view the running configuration of the switch Show run | begin 20 “vlan 20” – to ensure VLAN 20 was correctly added to the database show run | begin 20 ‘interface vlan 20’ – to view the L3 SVI configuration Show run interface 1/1/51.1/1/52 – to ensure the physical interfaces are no shut and were added as members of LAG 1 Show run int lag 1 – to verify LACP mode active was configured to eliminate LACP blocking states

QUESTION 41
What can be done to dynamically set the PoE Priority on a switch port when deploying IP cameras APs. and other PoE devices?

Enable Quick PoE on the switch modules

Enable profiling for device provisioning

Configure PoE power management to Class-based Mode

Configure PoE power management to Dynamic Mode

QUESTION 42
Refer to the exhibit.

In the given topology, a pair of Aruba CX 8325 switches are in a VSX stack using the active gateway What is the nature and behavior of the Virtual IP for the VSX pair if clients are connected to the access switch using VSX as the default gateway?

Virtual IP is active on the primary VSX switch
Virtual floating IP will failover in case of a failure

Virtual IP is active on both CX switches

Virtual IP uses SVI IP address synced with VSX

QUESTION 43
A hospital uses a lot of mobile equipment for the diagnosis and documentation of patient data What Is the ideal access switch for this large hospital with distribution racks of over 400 ports in a single VSF stack?

CX 6300

OCX 6400

OCX 6200

OCX 6100

Explanation
The ideal access switch for a large hospital with distribution racks of over 400 ports in a single VSF stack is the CX 6300. This switch provides the following benefits:
The CX 6300 supports up to 48 ports per switch and up to 10 switches per VSF stack, allowing for a total of 480 ports in a single stack. This meets the requirement of having over 400 ports in a single VSF stack.
The CX 6300 supports high-performance switching with up to 960 Gbps of switching capacity and up to
714 Mpps of forwarding rate. This meets therequirement of having high throughput and low latency for mobile equipment and patient data.
The CX 6300 supports advanced features such as dynamic segmentation, policy-based routing, and role-based access control. These features enhance the security and flexibility of the network by applying different policies and roles to different types of devices and users.
The CX 6300 supports Aruba NetEdit, a network configuration and orchestration tool that simplifies the management and automation of the network. This reduces the complexity and human errors involved in network configuration and maintenance.
The other options are not ideal because:
OCX 6400: This switch is designed for data center applications and does not support VSF stacking. It also does not support dynamic segmentation or policy-based routing, which are useful for network security and flexibility.
OCX 6200: This switch is designed for small to medium-sized businesses and does not support VSF stacking. It also has lower switching capacity and forwarding rate than the CX 6300, which may affect the performance of the network.
OCX 6100: This switch is designed for edge applications and does not support VSF stacking. It also has lower switching capacity and forwarding rate than the CX 6300, which may affect the performance of the network.
References: https://www.arubanetworks.com/assets/ds/DS_CX6300Series.pdf
https://www.arubanetworks.com/assets/ds/DS_OC6400Series.pdf
https://www.arubanetworks.com/assets/ds/DS_OC6200Series.pdf
https://www.arubanetworks.com/assets/ds/DS_OC6100Series.pdf

QUESTION 44
The customer has a requirement to create authorization policies for their users with Windows 10 clients, with a requirement Tor authorizing both device and user credentials within one Radius session.
What would be the correct solution for the requirement?

ClearPass 6.9 with EAP-TTLS

ClearPass 6.9 with EAP-TLS

ClearPass 6.9 with PEAP

ClearPass 6.9 with EAP-TEAP

QUESTION 45
When using an Aruba standalone AP you select “Native VLAN” for the Client VLAN Assignment In which subnet will the client IPs reside?

The same subnet as the mobility controller

The same subnet as the Aruba ESP gateway

The same subnet as the mobility conductor

The same subnet as the access point

QUESTION 46
What are the main characteristics of the 6 GHz band?

Less RF signal is absorb by objects in a 6 GHz WLAN.

In North America, the 6 GHz band offers more 80 MHz channels than there are 40 MHz channels in the
5 GHz band.

The 6 GHz band is fully backward compatible with the existing bands.

Low Power Devices are allowed for indoor and outdoor usage.

Explanation
The main characteristic of the 6 GHz band that is true among the given options is that in North America, the 6 GHz band offers more 80 MHz channels than there are 40 MHz channels in the 5 GHz band. This characteristic provides more spectrum availability, less interference, and higher throughput for wireless devices that support Wi-Fi 6E Wi-Fi Enhanced (Wi-Fi 6E) is an extension of Wi-Fi 6 (802.11ax) standard that operates in the newly available unlicensed frequency spectrum around 6 GHz in addition to existing bands below it. Some facts about this characteristic are:
In North America, there are up to seven non-overlapping channels available in each of three channel widths (20 MHz, 40 MHz, and 80 MHz) in the entire unlicensed portion of the new spectrum (5925-7125 MHz). This means there are up to 21 non-overlapping channels available for Wi-Fi devices in total.
In comparison, in North America, there are only nine non-overlapping channels available in each of two channel widths (20 MHz and 40 MHz) in the entire unlicensed portion of the existing spectrum below it (2400-2483 MHz and 5150-5825 MHz). This means there are only up to nine non-overlapping channels available for Wi-Fi devices in total.
Therefore, in North America, there are more than twice as many non-overlapping channels available in each channel width in the new spectrum than in the existing spectrum below it.
Specifically, there are more than twice as many non-overlapping channels available at 80 MHz width (seven) than at 40 MHz width (three) in the existing spectrum below it.
The other options are not true because:
Less RF signal is absorbed by objects in a 6 GHz WLAN: This option is false because higher frequency signals tend to be more absorbed by objects than lower frequency signals due to 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 . Therefore, RF signals in a 6 GHz WLAN would be more absorbed by objects than RF signals in a lower frequency WLAN.
The 6 GHz band is fully backward compatible with existing bands: This option is false because Wi-Fi devices need to support Wi-Fi 6E standard to operate in the new spectrum around 6 GHz . Existing Wi-Fi devices that do not support Wi-Fi 6Estandard cannot use this spectrum and can only operate in existing bands below it.
Low Power Devices are allowed for indoor and outdoor usage: This option is false because Low Power Indoor Devices (LPI) are only allowed for indoor usage under certain power limits and registration requirements . Outdoor usage of LPI devices is prohibited by regulatory authorities such as FCC Federal Communications Commission (FCC) is an independent agency of United States government that regulates communications by radio, television, wire, satellite, and cable across United States . However, outdoor usage of Very Low Power Devices (VLP) may be allowed under certain power limits and without registration requirements.
References: https://www.wi-fi.org/discover-wi-fi/wi-fi-certified-6e
https://www.wi-fi.org/file/wi-fi-alliance-spectrum-needs-study
https://www.cisco.com/c/en/us/products/collateral/wireless/spectrum-expert-wi-fi/prod_white_paper0900aecd80
https://www.cisco.com/c/en/us/support/docs/wireless-mobility/wireless-lan-wlan/82068-power-levels.html
https://www.wi-fi.org/file/wi-fi-alliance-unlicensed-spectrum-in-the-us

QUESTION 47
When using Aruba Central what can identify recommended steps to resolve network health issues and allows you to share detailed information with support personnel?

Overview Dashboard

OAlOps

Alerts and Events

Audit Trail

QUESTION 48
You need to drop excessive broadcast traffic on ingress to an ArubaOS-CX switch What is the best technology to use for this task?

Rate limiting

DWRR queuing

QoS shaping

Strict queuing

Explanation
The best technology to use for dropping excessive broadcast traffic on ingress to an ArubaOS-CX switch is rate limiting. Rate limiting is a feature that allows network administrators to control the amount of traffic that enters or leaves a port or a VLAN on a switch by setting bandwidth thresholds or limits. Rate limiting can be used to prevent network congestion, improve network performance, enforce service level agreements(SLAs), or mitigate denial-of-service (DoS) attacks. Rate limiting can be applied to broadcast traffic on ingress to an ArubaOS-CX switch by using the storm-control command in interface configuration mode. This command allows network administrators to specify the percentage of bandwidth or packets per second that can be used by broadcast traffic on an ingress port. If the broadcast traffic exceeds the specified threshold, the switch will drop the excess packets.
The other options are not technologies for dropping excessive broadcast traffic on ingress because:
DWRR queuing: DWRR stands for Deficit Weighted Round Robin, which is a queuing algorithm that assigns different weights or priorities to different traffic classes or queues on an egress port. DWRR ensures that each queue gets its fair share of bandwidth based on its weight while avoiding starvation of lower priority queues. DWRR does not drop excessive broadcast traffic on ingress, but rather schedules outgoing traffic on egress.
QoS shaping: QoS stands for Quality of Service, which is a set of techniques that manage network resources and provide different levels of service to different types of traffic based on their requirements.
QoS shaping is a technique that delays or buffers outgoing traffic on an egress port to match the available bandwidth or rate limit. QoS shaping does not drop excessive broadcast traffic on ingress, but rather smooths outgoing traffic on egress.
Strict queuing: Strict queuing is another queuing algorithm that assigns different priorities to different traffic classes or queues on an egress port. Strict queuing ensures that higher priority queues are always served before lower priority queues regardless of their bandwidth requirements or weights. Strict queuing does not drop excessive broadcast traffic on ingress, but rather schedules outgoing traffic on egress.
References: https://en.wikipedia.org/wiki/Rate_limiting
https://www.arubanetworks.com/techdocs/AOS-CX_10_08/NOSCG/Content/cx-noscg/qos/storm-control.htm
https://www.arubanetworks.com/techdocs/AOS-CX_10_08/NOSCG/Content/cx-noscg/qos/dwrr.htm
https://www.arubanetworks.com/techdocs/AOS-CX_10_08/NOSCG/Content/cx-noscg/qos/shaping.htm
https://www.arubanetworks.com/techdocs/AOS-CX_10_08/NOSCG/Content/cx-noscg/qos/strict.htm

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