What can be done to dynamically set the PoE Priority on a switch port when deploying IP cameras APs. and other PoE devices?
Correct Answer:B
Profiling is a feature that allows Aruba switches to automatically identify and classify devices connected to them based on various attributes such as MAC address, DHCP options, LLDP information, etc. Profiling can be used to dynamically set the PoE priority on a switch port based on the device type and power requirements. For example, an IP camera may have a higher PoE priority than a printer or a PC. Profiling can also be used to apply other configuration settings such as VLANs, ACLs, QoS, etc. based on the device profile. References:https://www.arubanetworks.com/techdocs/ArubaOS_86_Web_Help/Content/ar ubaos-solutions/1-overview/profiling.htm
What is the ideal Aruba access switch for a cost-effective connection to 200-380 clients, printers and APs per distribution rack?
Correct Answer:B
The ideal Aruba access switch for a cost-effective connection to 200-380 clients, printers and APs per distribution rack is the Aruba CX 6200. This switch series is a cloud- manageable, stackable access switch series that is ideal for enterprise branch offices and campus networks, as well as SMBs. The CX 6200 series offers the following benefits:
✑ Enterprise-class connectivity: The CX 6200 series supports ACLs, robust QoS,
and common protocols such as static and Access OSPF routing.
✑ Power and speed for users and IoT: The CX 6200 series provides built-in 1/10GbE uplinks and 30W to 60W of Class 4 to Class 6 PoE for powering devices such as APs and cameras.
✑ Scalable growth made simple: The CX 6200 series supports Aruba Virtual Switching Framework (VSF) that allows you to quickly grow your network to eight members in a single stack using high-performance built-in 10G SFP ports.
✑ Management flexibility: The CX 6200 series supports a choice of management, including cloud-based and on-prem Central, CLI, switch Web GUI and programmability with AOS-CX operating system, and REST APIs.
The other options are not ideal because:
✑ Aruba CX 6400: This switch series is a high-availability modular switch series that is ideal for versatile edge access to data center deployments. It offers more performance, scalability, and modularity than the CX 6200 series, but it is also more expensive and complex to deploy and manage. It may not be cost-effective for connecting 200-380 clients per distribution rack.
✑ Aruba CX 6300: This switch series is a layer 3 stackable access and aggregation switch series that offers Smart Rate and High Power PoE. It offers more features and performance than the CX 6200 series, but it is also more expensive and may not be necessary for connecting 200-380 clients per distribution rack.
✑ Aruba CX 6000: This switch series is a layer 2 access switch series that offers PoE. It offers less features and performance than the CX 6200 series, and it does not support VSF stacking or routing protocols. It may not be sufficient for connecting 200-380 clients per distribution rack.
References: https://www.arubanetworks.com/products/switches/access/ https://www.arubanetworks.com/products/switches/access/6200-series/ https://www.arubanetworks.com/products/switches/access/6400-series/ https://www.arubanetworks.com/products/switches/access/6300-series/ https://www.arubanetworks.com/products/switches/access/6000-series/
What is the recommended VSF topology? (Select two.)
Correct Answer:BE
Only: Daisy chain plus MAD and ring are the recommended VSF topologies for Aruba switches. They provide high availability and redundancy for the VSF stack. MAD (Multiple Active Detection) is a mechanism to detect and resolve split-brain scenarios in a VSF stack. References:https://www.arubanetworks.com/techdocs/AOS-CX/10.04/HTML/5200- 6790/GUID-D6EF042E-EEEF-49F7-B67E-4CAC41CCB24D.html
DRAG DROP
List the WPA 4-Way Handshake functions in the correct order.
Solution:
✑ Proves knowledge of the PMK
✑ Exchanges messages for generating PTK
✑ Distributes an encrypted GTK to the client
✑ Sets first initialization vector (IV)
Does this meet the goal?
Correct Answer:A
What happens when the signal from an AP weakens by being absorbed as it moves through an object?
Correct Answer:C
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 recover1. When the signal from an AP Access Point. AP is a device that allows wireless devices to connect to a wired network using Wi-Fi, or related standards. weakens by being absorbed as it moves through an
object, such as a wall or a furniture, the signal power decreases. This reduces the SNR
and affects the quality of the wireless connection. The noise power may also increase due to interference from other sources, such as other APs or devices operating in the same frequency band2. Therefore, the correct answer is that SNR decreases when the signal from an AP weakens by being absorbed as it moves through an object. References: 1
https://en.wikipedia.org/wiki/Signal-to-noise_ratio2 https://documentation.meraki.com/MR/Wi-Fi_Basics_and_Best_Practices/Signal-to-
Noise_Ratio_%28SNR%29_and_Wireless_Signal_Strength