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| Section | Objectives |
|---|---|
| Topic 1: Security and Access Control | - Role-based access control - Authentication methods (802.1X) - Network segmentation (VLANs, policies) |
| Topic 2: Wireless LAN Fundamentals | - Wi-Fi standards and concepts - SSID and WLAN configuration basics - Access point operation and roaming concepts |
| Topic 3: Networking Fundamentals | - IP addressing and subnetting - Basic switching and routing concepts - OSI model and TCP/IP basics |
| Topic 4: Operations and Troubleshooting | - Basic network troubleshooting tools - Monitoring and logging concepts |
| Topic 5: Aruba Campus Access Architecture | - Aruba OS-CX switching fundamentals - Campus network design principles - Aruba access layer components |
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NEW QUESTION # 33
What can be done to dynamically set the PoE Priority on a switch port when deploying IP cameras APs. and other PoE devices?
Answer: C
Explanation:
Explanation
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/arubaos-solutions/1-ove
NEW QUESTION # 34 
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?
Answer: C
Explanation:
On Aruba switches, the Link Layer Discovery Protocol (LLDP) is enabled by default on all ports. This protocol is an industry-standard network discovery protocol that is used for network devices to advertise their identity, capabilities, and neighbors on a locally managed network, typical in an IEEE 802 network. This is beneficial for network mapping and troubleshooting purposes. Since LLDP is enabled by default, there is no need for any additional configuration on Switch 1 port 1/1/24 to receive LLDP messages from Router 1, as long as LLDP is not disabled on the port.
NEW QUESTION # 35
What is indicated by a solid amber radio status LED on an Aruba AP?
Answer: A
Explanation:
Explanation
The solid amber radio status LED on an Aruba AP Access Point (AP) Access Point (AP) is a device that connects wireless devices to a wired network using Wi-Fi or other wireless standards . APs act as transmitters and receivers of wireless signals and provide wireless coverage for a specific area . APs can operate in different modes such as root , repeater , bridge , mesh , etc . APs can also support different features such as security , QoS , roaming , load balancing , etc . APs can be standalone devices or managed by controllers or cloud services . APs can be verified by using commands such as show ap active , show ap database , show ap bss-table , etc . indicates that the radio is enabled in monitor or spectrum analysis mode. Monitor mode is a mode that allows the AP to scan all channels and collect information about wireless traffic, interference, rogue devices, etc. Spectrum analysis mode is a mode that allows the AP to scan all channels and collect information about RF Radio Frequency (RF) Radio Frequency (RF) is a term that refers to electromagnetic waves that have frequencies between 3 kHz and 300 GHz . RF waves are used for various purposes such as communication , broadcasting , radar , navigation , remote control , etc . RF waves can be modulated by changing their amplitude , frequency , or phase to encode information . RF waves can also be affected by various factors such as attenuation , reflection , refraction , diffraction , scattering , interference , noise , etc . RF waves can be measured by using devices such as spectrum analyzers , power meters , antennas , etc . environment, noise sources, channel utilization, etc. Both modes are useful for troubleshooting and optimizing wireless performance, but they disable normal data transmission and reception on the radio.
The other options are not indicated by a solid amber radio status LED on an Aruba AP because:
Not enough PoE is provided from the switch to power both radios of the AP: This option is false because not enough PoE Power over Ethernet (PoE) Power over Ethernet (PoE) is a technology that allows network devices to receive power and data over the same Ethernet cable . PoE eliminates the need for separate power sources and cables for devices such as IP phones , cameras , access points , etc .
PoE is defined in IEEE 802.3af and IEEE 802.3at standards and supports different power classes and modes . PoE can be provided by switches or injectors that act as power sourcing equipment (PSE) and received by devices that act as powered devices (PD) . PoE can be verified by using commands suchas show power inline , show power-over-ethernet , debug ip device tracking , etc . is indicated by a blinking amber power status LED on an Aruba AP, not by a solid amber radio status LED. A blinking amber power status LED means that the AP is receiving insufficient power from the switch or injector and cannot operate normally. A solid green power status LED means that the AP is receiving sufficient power from the switch or injector and can operate normally.
The radio is working in mesh mode: This option is false because the radio working in mesh mode is indicated by a solid green radio status LED on an Aruba AP, not by a solid amber radio status LED. A solid green radio status LED means that the radio is working in normal mode or mesh mode and can transmit or receive data on the assigned channel. Mesh mode is a mode that allows the AP to connect wirelessly to other APs and form a mesh network without requiring wired connections.
The radio is working the 5 GHz band only: This option is false because the radio working in the 5 GHz band only is indicated by a solid blue radio status LED on an Aruba AP, not by a solid amber radio status LED. A solid blue radio status LED means that the radio is working in dual-band mode and can transmit or receive data on both 2.4 GHz and 5 GHz bands.
References:
https://www.arubanetworks.com/techdocs/Instant_86_WebHelp/Content/instant-ug/ap-led-behavior.htm
https://www.arubanetworks.com/techdocs/Instant_86_WebHelp/Content/instant-ug/troubleshooting/ap-monitor-m
https://www.arubanetworks.com/techdocs/Instant_86_WebHelp/Content/instant-ug/troubleshooting/ap-spectrum
NEW QUESTION # 36
Which part of the WPA Key Hierarchy is used to encrypt and/or decrypt data''
Answer: B
Explanation:
The part of WPA Key Hierarchy that is used to encrypt and/or decrypt data is Pairwise Temporal Key (PTK).
PTK is a key that is derived from PMK Pairwise Master Key (PMK) is a key that is derived from PSK Pre- shared Key (PSK) is a key that is shared between two parties before communication begins , ANonce Authenticator Nonce (ANonce) is a random number generated by an authenticator (a device that controls access to network resources, such as an AP) , SNonce Supplicant Nonce (SNonce) is a random number generated by supplicant (a device that wants to access network resources, such as an STA) , AA Authenticator Address (AA) is MAC address of authenticator , SA Supplicant Address (SA) is MAC address of supplicant using Pseudo-Random Function (PRF). PTK consists of four subkeys:
* KCK Key Confirmation Key (KCK) is used for message integrity check
* KEK Key Encryption Key (KEK) is used for encryption key distribution
* TK Temporal Key (TK) is used for data encryption
* MIC Message Integrity Code (MIC) key
The subkey that is specifically used for data encryption is TK Temporal Key (TK). TK is also known as Pairwise Transient Key (PTK). TK changes periodically during communication based on time or number of packets transmitted.
The other options are not part of WPA Key Hierarchy because:
* PMK: PMK is not part of WPA Key Hierarchy, but rather an input for deriving PTK.
* KCK: KCK is part of WPA Key Hierarchy, but it is not used for data encryption, but rather for message integrity check.
* Nonce: Nonce is not part of WPA Key Hierarchy, but rather an input for deriving PTK.
References: https://en.wikipedia.org/wiki/Wi-Fi_Protected_Access#WPA_key_hierarchy_and_management
https://www.cwnp.com/wp-content/uploads/pdf/WPA2.pdf
NEW QUESTION # 37
Why is WPA3-Personal authentication a more secure option than WPA2-PSK?
Answer: D
Explanation:
WPA3-Personal uses Simultaneous Authentication of Equals (SAE), which replaces the WPA2 pre-shared key exchange mechanism. SAE generates a fresh Pairwise Master Key for each authentication attempt, providing stronger protection against offline password-guessing attacks and improving overall security.
NEW QUESTION # 38
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