Designing Aruba Solutions Question and Answers

Designing Aruba Solutions

Last Update May 4, 2024
Total Questions : 65

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Questions 1

A customer needs a wireless solution upgrade. Among the devices that need wireless access are printers. What information about the printers does the architect need to plan the wireless solution? (Select two.)

Options:

whether the printers are physically locked down

the identify of users who need to access printers

whether the printers support Power over Ethernet (PoE)

whether the printers support 802.1X

the 802.11 standards supported by the printer

Discussion 0

Answer:

D, E

Explanation:

To plan a wireless solution upgrade for printers, the architect needs to know whether the printers support 802.1X and the 802.11 standards supported by the printer. These two factors are important for ensuring the compatibility, security, and performance of the wireless network.

802.1X is a standard for network access control that provides authentication, authorization, and encryption for devices that connect to a wireless network1. It prevents unauthorized devices from accessing the network resources and protects the data transmission from eavesdropping or tampering. If the printers support 802.1X, the architect can design a wireless solution that leverages this feature to enhance the security and compliance of the network. If the printers do not support 802.1X, the architect may need to consider alternative methods of securing the wireless access, such as MAC address filtering, VPN, or WPA2-PSK2.
802.11 is a set of standards that define the specifications and protocols for wireless communication3. Different 802.11 standards have different characteristics, such as frequency, bandwidth, data rate, range, and compatibility. For example, 802.11a operates at 5 GHz and offers up to 54 Mbps, while 802.11b operates at 2.4 GHz and offers up to 11 Mbps3. If the printers support the same or higher 802.11 standards as the wireless network, the architect can design a wireless solution that ensures the optimal performance and reliability of the wireless communication. If the printers support lower or different 802.11 standards than the wireless network, the architect may need to consider the impact of the compatibility issues, such as interference, congestion, or degradation4.

The other options are not as relevant for planning a wireless solution upgrade for printers. Whether the printers are physically locked down or not does not affect the wireless connectivity, unless the lock interferes with the antenna or signal reception. The identity of users who need to access printers is more related to the access control and user management policies, rather than the wireless solution design. Whether the printers support PoE or not does not affect the wireless connectivity, unless the power source is unreliable or insufficient.

References:

1: https://www.arubanetworks.com/techdocs/ArubaOS_86_Web_Help/Content/arubaos-solutions/1-overview/802.1x.htm
2: https://www.arubanetworks.com/techdocs/ArubaOS_86_Web_Help/Content/arubaos-solutions/1-overview/securing-wireless-access.htm
3: https://www.arubanetworks.com/techdocs/ArubaOS_86_Web_Help/Content/arubaos-solutions/1-overview/802.11-standards.htm
4: https://www.arubanetworks.com/techdocs/ArubaOS_86_Web_Help/Content/arubaos-solutions/1-overview/compatibility-issues.htm

Questions 2

Refer to the exhibit.

An architect selects 5406R switches for the aggregation layer. What is an appropriate amount of bandwidth for the link aggregation between each aggregation layer VSF fabric and the campus core?

Options:

60 Gbps

160 Gbps

200 Gbps

320 Gbps

Discussion 0

Questions 3

A customer has several clusters of Aruba 325 Instant APs. The customer is happy with the performance of the current APs, but would like to add a Mobility Controller (MC). What should the architect propose?

Options:

the purchase of Universal APs that are the same modes as the current APs.

Aruba ClearPass to onboard the APs as campus APs in the new MC-based deployment

conversion of the existing Instant APs to campus APs (CAPs)

a Virtual Mobility Controller (VMC) which can be licensed to control Instant APs

Discussion 0

Questions 4

Refer to the exhibit.

What is one reason for an architect to recommend the use of Virtual Switching Framework (VSF) in this network?

Options:

VSF enables software-defined network monitoring in conjunction with AirWare.

VSF transforms switches into virtual extensions of the MCs to simplify MST management.

VSF enables administrators to manage all 18 switches as a single switch.

VSF simplifies the topology and eliminates the need for spanning tree.

Discussion 0

Questions 5

An architect plant to purpose an Aruba wireless solution with several Mobility Controllers (MCs) and a Mobility Master (MM) architecture. Wireless users run Skype for Business, a Unified Communications (UC) solution. The architect plans to use the Aruba SDN capabilities to integrate with the UC solution.

What helps to support high availability specifically for the SDN services?

Options:

a redundant master MC

backup controllers defines on the APs

a cluster deployment for MCs

a redundant MM

Discussion 0

Questions 6

An RF plan specifies wide sector directional antennas.

Refer to the antenna specifications.

H-plane refers to the Azimuth or Horizontal plane and E-plane refers to Elevation or Vertical plane.

Antenna 1: H-plane = 360; E-plane = 120

Antenna 2: H-plane = 360; E-plane = 60

Antenna 3: H-plane = 100; E-plane = 90

Antenna 4: H-plane = 60; E-plane = 60

Which antenna specifications indicate that the antenna is a good choice for the plan?

Options:

Antenna 1

Antenna 2

Antenna 3

Antenna 4

Discussion 0

Questions 7

An architect needs to choose between an Aruba Mobility Controller (MC) 7010 or 7024. Which сcustomer need indicates that the 7024 is a better choice than the 7010?

Options:

the need to support 2000 users or devices

the need to support PoE+

the need to manage 20 APs

the need to connect 20 APs directly to the MC

Discussion 0

Questions 8

What is one reason to recommend dedicated Air Monitors (AMs) for a customer, as opposed to APs that are doing WIPS in AP mode (hybrid)?

Options:

AMs can operate in a hybrid operation mode in which they can support clients, scan for threats, and contain detected threats.

AMs can implement wireless containment on any channel on which they detect a threat without negative impact on clients.

AMs can detect both 802.11 and non-802.11 sources of interference to the wireless network, while APs cannot.

AMs can maintain client and AP blacklists on their own without the need to communicate with a Mobility Controller (MC).

Discussion 0

Questions 9

An architect proposes Aruba 2930F switches, which do not have OOBM ports. The customer wants to follow best practices for network management security. Which guideline can the architect follow?

Options:

Assign access layer switches IP addresses on a VLAN that is dedicated for switch management.

Ensure that DHCP is enabled on only the switch Default VLAN.

Ensure that Telnet is enabled and set to listen on production VLANs.

Assign switches static IP addresses on the same VLAN on which APs are deployed.

Discussion 0

Questions 10

Which benefit does Aruba AirWare Clarity provide to customer IT staff?

Options:

assesses times for clients to obtain DHCP and DNS services to help staff diagnose non-WiFi related issues

create a heat map of RF coverage, shows places with interfaces, and helps staff pinpoint the interference source

provides insight into the security posture of clients connected to the network, whether wired or wireless

maps all network devices, including APs, MCs, switches, and client devices, and provides information about each node

Discussion 0

Questions 11

An architect plans where to deploy new Aruba 320 Series APs at a customer site. The architect plans for the APs to be installed on the ceiling where power is inaccessible. The Ethernet cable run to these locations is CAT6, and the customer wants to support at least 1 GbE connectivity. The architect plans to connect each AP with one Ethernet port to a switch in a nearby wiring closet.

Which feature does the switch need to support for this deployment?

Options:

PoE+

LACP

Port channel

Smart Rate

Discussion 0

Questions 12

A customer needs an 802.11ac upgrade for an office with cubicles. The customer states that, because they planned locations for the existing 802.11n APs so that there are no coverage holes, they will simply deploy the new 802.11ac APs in the same location as the existing APs. The customer plans to support mobile devices in addition to laptops.

What should the architect explain about shy a site survey is desirable to determine the optimal locations for the new APs?

Options:

An 802.11ac deployment typically works better with side-mounted, rather than ceiling-mounted, APs, and a site survey will help determine the new mounting locations.

The new 802.11ac deployment should have a capacity-based design for the best performance, but the existing deployment sounds like a coverage-based design.

802.11ac AP radios tend to be more sensitive to 2.4 GHz interference than 802.11n APs, so the architect needs to search for all potential sources of such interference.

802.11ac APs can support a higher density of clients, so they can be deployed farther apart than the APs in most existing 802.11n deployments.

Discussion 0

Questions 13

An Aruba wireless solution for a very high density (VHD) wireless solution consists of a Mobility Master (MM) and two Mobility Controllers (MCs). What is the best practice design for routing the wireless traffic?

Options:

The MCs provide the default gateway services for wireless devices and use static routers.

The MCs act at Layer2, and the MM acts as the default gateway.

The MCs act at Layer2, and core routing switches act as the default gateway.

The MCs provide the default gateway services for wireless devices and use OSPF.

Discussion 0

Questions 14

A customer currently has an Instant AP deployment. Which customer requirement would indicate that the customer needs to add a controller to the deployment?

Options:

the requirement to apply role-based firewall policies

the requirement for a captive portal for guests

the requirement to provide client-to-site VPN acces for remote users

the requirement for a cloud-based management solution

Discussion 0

Questions 15

What is one important guideline for antenna selection?

Options:

Ensure that the beam-width exceeds 100 degrees.

Ensure that the H-plane and E-plane values are within 45 degrees of each other.

Ensure that the antenna is rated for 802.11ac usage.

Ensure that the antenna is designed for the frequency used by the radio.

Discussion 0

Questions 16

An architect needs to plan an 802.11ac wireless upgrade for a university building. What is one reason that it is important for the architect to identify auditoriums?

Options:

Auditoriums typically require a high-density AP design for RF coverage.

Users in Auditoriums often have Bluetooth devices, which can be a source of interface in the 5 GHz band.

Auditoriums typically require the use of 80 MHz channels to meet bandwidth requirements.

Auditoriums often require the use of DFS channels for sufficient 20 MHz channels.

Discussion 0

Questions 17

Refer to the exhibit.

The customer requires fast failover if any one link or core device fails. Which additional technology should the architect plan on the core VSF fabric to meet these criteria?

Options:

OSPF graceful restart

SmartLink

BGP

VRRP

Discussion 0

Questions 18

An architect learns that a customer site is 14,307 square meters (154,000 square feet) and supports 900 employees using WiFi 5 Ghz radio. What additional information should the architect collect to create the RF plan?

Options:

number of devices used by each user

the OS used on wireless devices

whether BLE wayfinding is required

software version on Mobility Controllers (MCs)

Discussion 0

Questions 19

An architect simulates VoIP calls and tests the throughput as 67 Kbps, packet loss as 0.3 percent, maximum latency as 100 ms, and maximum jitter as 100 ms. Which issue typically causes a poor experience for users?

Options:

the packet loss

the throughput

the latency

the jitter

Discussion 0

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