Explanation
CoA (Change of Authorization) is a feature that allows ClearPass to dynamically change the authorization and access privileges of a device after it has been authenticated1. CoA uses RADIUS messages to communicate with the network device and instruct it to perform an action, such as reauthenticating the device, applying a new VLAN or user role, or disconnecting the device2.
To enable CoA on a CX switch, the network engineer needs to configure dynamic authorization on the switch, which is a global command that allows the switch to accept RADIUS messages from ClearPass and execute the requested actions3. The network engineer also needs to specify the IP address and shared secret of ClearPass as a dynamic authorization client on the switch3.
To trigger CoA for a specific wired device, the network engineer needs to bounce the switchport, which is an action that temporarily disables and re-enables the port where the device is connected. This forces the device to reauthenticate and receive the new policy from ClearPass. Bouncing the switchport can be done manually by using the interface shutdown and no shutdown commands, or automatically by using ClearPass as a CoA server and sending a RADIUS message with the Port-Bounce-Host AVP (Attribute-Value Pair).

Explanation
Client Insights matches with Built in , AI powered client visibility and fingerprinting capability that leverages infrastructure telemetry and ML based classification models to eliminate network bling spots Client Insights is a solution component of NetConductor that provides built-in, AI-powered client visibility and fingerprinting capability that leverages infrastructure telemetry and ML-based classification models to eliminate network blind spots. Client Insights uses machine learning to automatically detect, identify, and classify devices on the network, such as IoT devices, BYOD devices, or rogue devices. Client Insights also provides behavioral analytics and anomaly detection to monitor device performance and security posture.
Client Insights helps network administrators gain visibility into the device landscape, enforce granular access policies, and troubleshoot issues faster. References:
https://www.arubanetworks.com/products/network-management-operations/central/netconductor/
https://www.arubanetworks.com/assets/wp/WP_NetConductor.pdf
Cloud Auth matches with Enables fictionless onboarding of end users and client devices either through MAC address-based authentication or through integrations with common cloud identity stores Cloud Auth is a solution component of NetConductor that enables frictionless onboarding of end users and client devices either through MAC address-based authentication or through integrations with common cloud identity stores. Cloud Auth is a cloud-native network access control (NAC) solution that is delivered via Aruba Central. Cloud Auth allows network administrators to define user and device groups, assign roles and policies, and enforce access control across wired and wireless networks. Cloud Auth supports MAC authentication for devices that do not support 802.1X, as well as integrations with cloud identity providers such as Azure AD, Google Workspace, Okta, etc. References:
https://www.arubanetworks.com/products/network-management-operations/central/netconductor/
https://www.arubanetworks.com/assets/wp/WP_NetConductor.pdf
The Fabric Wizard matches with Simplifies the creation of the overlays using an intuitive graphical user interface and automatic generation of configuration instructions that are pushed to switches and gateways The Fabric Wizard is a solution component of NetConductor that simplifies the creation of the overlays using an intuitive graphical user interface and automatic generation of configuration instructions that are pushed to switches and gateways. The Fabric Wizard is a tool that allows network administrators to design, deploy, and manage overlay networks using VXLAN and EVPN protocols. The Fabric Wizard provides a graphical representation of the network topology, devices, and links, and allows users to drag and drop virtual components such as VRFs, VLANs, and subnets. The Fabric Wizard also generates the configuration commands for each device based on the user input and pushes them to the switches and gateways via Aruba Central. References:
https://www.arubanetworks.com/products/network-management-operations/central/netconductor/
https://www.arubanetworks.com/assets/wp/WP_NetConductor.pdf
Policy Manager matches with Defines user and device groups and creates the associated traffic routing and access enforcement rules for the physical network Policy Manager is a solution component of NetConductor that defines user and device groups and creates the associated traffic routing and access enforcement rules for the physical network. Policy Manager is a tool that allows network administrators to create and manage network policies based on user and device identities, roles, and contexts. Policy Manager uses Group Policy Identifier (GPID) to carry policy information in traffic for in-line enforcement. Policy Manager also integrates with Cloud Auth, ClearPass, or third-party solutions to provide flexible network access control. References:
https://www.arubanetworks.com/products/network-management-operations/central/netconductor/
https://www.arubanetworks.com/assets/wp/WP_NetConductor.pdf

Authentication survivability is a feature that allows the device to remain operational when a remote link failure occurs between a Gateway cluster and a RADIUS server that is either in the cloud or a datacenter.
Authentication survivability enables the Gateway cluster to cache successful authentication requests from the RADIUS server and use them to authenticate clients when the RADIUS server is unreachable. Authentication survivability also allows clients to use MAC caching or MAC authentication bypass (MAB) methods to access the network when the RADIUS server is down.

Explanation
Multi-Domain Authentication is the feature that should be enabled to support the requirement that the switch must be able to authenticate a single computer connected through a VoIP phone. Multi-Domain Authentication is a feature that allows an Aruba CX switch to apply different authentication methods and policies to different devices connected to the same port. For example, a VoIP phone and a computer can be connected to the same port using a single cable, but they can be authenticated separately using different credentials and assigned to different VLANs. The other options are incorrect because they either do not support multiple devices on the same port or do not provide authentication. References:
https://www.arubanetworks.com/techdocs/AOS-CX/10.05/HTML/5200-7540/GUID-7D9E9F6E-5C2A-4F7E-BE
https://www.arubanetworks.com/assets/tg/TB_ArubaCX_Switching.pdf

To configure an IP address for an interface in default state for interface 1/1/1 on Aruba CX 6300 switch, you need to disable switching on the interface first with the command no switching. Then you can assign an IP address with the command ip address. The other options are incorrect because they either do not disable switching or use invalid keywords such as switching or routing.

Explanation
802.3bz is a standard for Ethernet over twisted pair at speeds of 2.5 and 5 Gbit/s. These use the same cabling as the ubiquitous Gigabit Ethernet, yet offer higher speeds. The resulting standards are named 2.5GBASE-T and 5GBASE-T.
Option A: 2.5Gb and 5Gb Ethernet ports
This is because option A shows how to identify the speed of an Ethernet port based on its name and the standard it supports. A port that supports 2.5GBASE-T or 5GBASE-T is a multi-gigabit port that can operate at speeds of up to 2.5 Gbit/s or 5 Gbit/s over twisted pair cables23.
Therefore, option A is correct.
1: https://en.wikipedia.org/wiki/2.5GBASE-T_and_5GBASE-T 2:
https://kb.netgear.com/000049004/What-is-Multi-Gigabit-Ethernet-and-how-can-I-benefit-from-using-NETGEA
https://arstechnica.com/gadgets/2016/09/5gbps-ethernet-standard-details-8023bz/

To establish a keepalive connection between two Aruba CX 8325 switches for VSX configuration, you need to use a routed port in custom VRF. A routed port is a physical port that acts as a layer 3 interface and does not belong to any VLAN. A custom VRF is a virtual routing and forwarding instance that provides logical separation of routing tables. By using a routed port in custom VRF, you can isolate the keepalive traffic from other traffic and prevent routing loops or conflicts. The other options are incorrect because they either do not use a routed port or do not use a custom VRF. Reference: https://www.arubanetworks.com/techdocs/AOS-CX/10.04/HTML/5200-6728/bk01-ch07.html https://www.arubanetworks.com/techdocs/AOS-CX/10.04/HTML/5200-6728/bk01-ch02.html

Explanation
802.11k is a standard that provides mechanisms for APs and clients to dynamically measure the available radio resources in a wireless network. 802.11k defines radio resource management (RRM) functions, such as neighbor reports, link measurement, beacon reports, etc., that allow APs and clients to exchange information about the RF environment and make better roaming decisions. The other options are incorrect because they describe other standards, such as 802.11r, 802.11v, or 802.11ax. References:
https://www.arubanetworks.com/assets/wp/WP_WiFi6.pdf
https://www.arubanetworks.com/assets/ds/DS_AP510Series.pdf

The information that the Inter-Switch Link Protocol configuration uses in the configuration created is B. MAC tables.
The Inter-Switch Link Protocol (ISL) is a protocol that enables the synchronization of data and state information between two VSX peer switches. The ISL uses a version control mechanism and provides backward compatibility regarding VSX synchronization capabilities. The ISL can span long distances (transceiver dependent) and supports different speeds, such as 10G, 25G, 40G, or 100G1.
One of the data components that the ISL synchronizes is the MAC table, which is a database that stores the MAC addresses of the devices connected to the switch and the corresponding ports or VLANs. The ISL ensures that both VSX peers have the same MAC table entries and can forward traffic to the correct destination2. The ISL also synchronizes other data components, such as ARP table, LACP states for VSX LAGs, and MSTP states2.

This is because option C shows how to create a single group in Central with different configuration methods defined for each device type. For example, you can create a group with the name Group, and within this group, you can enable template-based configuration method for switches and UI- based configuration method for Instant APs and Gateways. Aruba Central identifies both these groups under a single name (Group). If a device type in the group is marked for template-based configuration method, the group name is prefixed with TG (TG Group). You can use Group as the group ID for workflows such as user management, monitoring, reports, and audit trail.

Authentication survivability is a feature that allows the device to remain operational when a remote link failure occurs between a Gateway cluster and a RADIUS server that is either in the cloud or a datacenter.
Authentication survivability enables the Gateway cluster to cache successful authentication requests from the RADIUS server and use them to authenticate clients when the RADIUS server is unreachable. Authentication survivability also allows clients to use MAC caching or MAC authentication bypass (MAB) methods to access the network when the RADIUS server is down.References:https://www.arubanetworks.com/assets/tg/TG_AuthSurvivability.pdf

NAE agents are software components that run on Aruba CX switches to monitor various aspects of network health and performance. NAE agents use NAE scripts to define what data to collect, how to analyze it, and what actions to take when certain conditions are met. A single NAE script can be used by multiple NAE agents on different switches or even different switch stacks.
However, NAE scripts must be reviewed and signed by Aruba before being used on production switches. This is to ensure that the scripts are safe, secure, and compliant with Aruba standards.

EVPN-VXLAN is a technology that allows layer-2 communication across layer-3 networks by using Ethernet VPN (EVPN) as a control plane and Virtual Extensible LAN (VXLAN) as a data plane3. EVPN- VXLAN can be used to support legacy applications that communicate at layer-2 across different campuses or data centers that are connected via layer-3. EVPN-VXLAN minimizes flooding by using BGP to distribute MAC addresses and IP addresses of hosts across different VXLAN segments3. EVPN- VXLAN also provides benefits such as loop prevention, load balancing, mobility, and scalability3.
References: https://www.arubanetworks.com/assets/tg/TG_EVPN_VXLAN.pdf

Explanation
Aruba Central is a cloud-based networking solution that empowers IT with AI-powered insights, intuitive visualizations, workflow automation, and edge-to-cloud security to manage campus, branch, remote, data center, and IoT networks from one dashboard1. Aruba Central also provides a mobile app that allows users to easily onboard and monitor devices2. The app enables users to scan the barcode of a device (such as an AP or a switch) and add it to their network in Aruba Central2. The app also lets users monitor the details of Aruba wireless access points and switches and their clients on their network2.
Therefore, the application that the office manager must use on their phone to complete the task of onboarding all the new hardware into Aruba Central is the Aruba Central App.
References: 1 https://www.hpe.com/us/en/aruba-central.html 2

802.11mc is a standard that uses Round Trip Time (RTT) and Fine Time Measurements (FTM) to calculate the distance a client is from an AP. 802.11mc defines a protocol for exchanging FTM frames between an AP and a client, which contain timestamps that indicate when the frames were transmitted and received. By measuring the RTT of these frames, the AP or the client can estimate their distance based on the speed of light. The other options are incorrect because they either do not use RTT or FTM or do not exist as standards.