HP HPE7-A01 Practice Test - Questions Answers, Page 10

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 provide encryption 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_gtw_act_fwd/act-gat-ove-vsx-10.htm2: https://community.arubanetworks.com/blogviewer?blogkey=989fc43a-e0df-42db-9c0b-f96d6565a1fa

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-T2: https://kb.netgear.com/000049004/What-is-Multi-Gigabit-Ethernet-and-how-can-I-benefit-from-using-NETGEAR-Multi-Gigabit-Ethernet-Switches-in-my-network3: https://arstechnica.com/gadgets/2016/09/5gbps-ethernet-standard-details-8023bz/

According to the Aruba Documentation Portal1, user-based tunneling (UBT) is a feature that uses GRE to tunnel ingress traffic on a switch interface to a gateway for further processing. UBT enables a switch to provide a centralized security policy, using per-user authentication and access control to ensure consistent access and permissions.

Option A: The switch will put the client on the access VLAN

This is because option A shows how UBT works on an Aruba switch. When a device connects to the network, it is authenticated using either MAC Authentication or 802.1X and triggers an enforcement policy from ClearPass, which contains an enforcement profile with a user role configuration. The user role can be assigned locally on the switch or on ClearPass as part of an enforcement profile.The user role determines the VLAN that the device belongs to and the access policies that apply to it23.

Therefore, option A is correct.

1: https://www.arubanetworks.com/techdocs/central/latest/content/nms/aos-cx/cfg/conf-cx-ubt.htm2: https://www.arubanetworks.com/techdocs/AOS-CX/10.06/HTML/5200-7696/GUID-581D2976-694B-46C7-8497-F6B788AA05B2.html3: https://community.arubanetworks.com/viewdocument/?DocumentKey=c740df4e-3e26-4cc5-9126-355a18709c44&CommunityKey=2fd943a6-8898-4dbe-915f-4f09e4d3c317&tab=librarydocuments

Wi-Fi 6 is an industry certification for products that support the new wireless standard 802.11ax, also known as ''high-efficiency wireless''. Wi-Fi 6 offers increased capacities, improved resource utilization and higher throughput speeds than previous standards.

Option B: ClientMatch

This is because option B shows how to use ClientMatch to optimize the wireless performance of Wi-Fi 6 clients on a UniFi network.ClientMatch is a feature that uses machine learning to analyze the traffic patterns of each client and assign them to the best available AP based on their location, device type, and network conditions2.

Therefore, option B is the best technology to implement for your customer's issue.

1: https://help.ui.com/hc/en-us/articles/221029967-UniFi-Network-Optimizing-Wireless-Connectivity2: https://help.ui.com/hc/en-us/articles/360012947634-UniFi-Network-Optimizing-Wireless-Speeds

According to the Aruba Documentation Portal1, 802.1X is a standard for port-based network access control that uses a RADIUS server to authenticate and authorize wireless clients. 802.1X can be configured in different modes, such as bridge mode, tunnel mode, or split tunnel mode.

Option C: GRE tunnel

This is because option C shows how to configure an SSID in tunnel mode with the default AP-group settings on an Aruba switch.In tunnel mode, all client traffic from the access points is tunneled back to the controller and the controller would in turn put the client traffic onto the network2.The GRE protocol is used to encapsulate and decapsulate the traffic between the access points and the controller3.

Therefore, option C is correct.

1: https://www.arubanetworks.com/techdocs/AOS-CX/10.06/HTML/5200-7696/GUID-581D2976-694B-46C7-8497-F6B788AA05B2.html2: https://community.arubanetworks.com/discussion/bridge-and-tunnel-mode3: https://www.twingate.com/blog/ipsec-tunnel-mode

Server derived role

User derived role

Authentication default role

Initiation role assigned

The Equivalent Isotropic Radiated Power (EIRP) is the measured radiated power of an antenna in a specific direction. It is also called Equivalent Isotropic Radiated Power. It is the output power when a signal is concentrated into a smaller area by the Antenna. The EIRP can take into account the losses in transmission line, connectors and includes the gain of the antenna. It is represented in dB2. The formula for EIRP is:

EIRP=PTLc+Ga

where PT is the output power of the transmitter in dBm, Lc is the cable and connector loss in dB, and Ga is the antenna gain in dBi.

For AP1, the EIRP can be calculated as:

EIRP=164+8=20dBm

Therefore, the answer B is correct.

Active gateway is a first hop redundancy protocol that eliminates a single point of failure. The active gateway feature is used to increase the availability of the default gateway servicing hosts on the same subnet. An active gateway improves the reliability and performance of the host network by enabling a virtual router to act as the default gateway for that network.If you have enabled active gateway, VRRP is not required3. Active gateway is similar to VRRP in that routed traffic from the VSX node is sourced from the switch interface MAC and not the virtual MAC address (VMAC). Each active gateway sends a periodic broadcast hello packet to avoid VMAC aging on the access switches.The switch views the active gateway IP as a self IP address3.Active gateway is preferable over VRRP because with VRRP traffic is still pushed over the ISL link, resulting in latency in the network3. Therefore, VRRP and active gateway are mutually exclusive on a VLAN, and answer A is correct.

The system-mac command is used to configure a fixed MAC address for the VSX system. This MAC address is used as the source MAC address for all routed traffic from the VSX node.The system-mac command is highly recommended for preventing traffic disruptions when the primary VSX switch restores after the secondary VSX switch, such as during a primary switch hardware replacement or a power outage2. During the initial VSX configuration, the system-mac is assigned with a fixed MAC based on VSX ID.The system-mac command can be used to change this default MAC address if needed2. Therefore, answer D is correct.