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| Section | Weight | Objectives |
|---|---|---|
| Describe Wireless Networking Fundamentals | 20% | - Wireless LAN concepts
|
| Describe Network Fundamentals | 15% | - OSI model and TCP/IP fundamentals
|
| Describe Network Security Fundamentals | 15% | - Basic security concepts
|
| Describe Aruba Management Solutions | 15% | - Network management platforms
|
| Troubleshooting and Maintenance | 10% | - Basic troubleshooting methodology
|
| Describe Aruba Switching Solutions | 25% | - Aruba CX switching features
|
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NEW QUESTION # 122
What information is required when using the ClearPass self-service registration page to generate a Multiple Pre-Shared Key (MPSK) for headless devices?
Answer: A
Explanation:
When generating a Multiple Pre-Shared Key (MPSK) for headless devices using the ClearPass self-service registration page, the MAC address of the device is required. MPSK associates a unique PSK with the MAC address of a device, providing a way to authenticate devices that may not have a user interface.
NEW QUESTION # 123
What is a weakness introduced into the WLAN environment when WPA2-Personal is used for security?
Answer: D
Explanation:
The weakness introduced into WLAN environment when WPA2-Personal is used for security is that 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 , which are both fixed. This means that all users who know PSK can generate PMK without any authentication process. This also means that if PSK or PMK are compromised by an attacker, they can be used to decrypt all traffic encrypted with PTK Pairwise Temporal Key (PTK) is a key that is derived from PMK, 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 other options are not weaknesses because:
It uses X 509 certificates generated by a Certification Authority: This option is false because WPA2-Personal does not use X 509 certificates or Certification Authority for authentication. X 509 certificates and Certification Authority are used in WPA2-Enterprise mode, which uses 802.1X and EAP Extensible Authentication Protocol (EAP) is an authentication framework that provides support for multiple authentication methods, such as passwords, certificates, tokens, or biometrics. EAP is used in wireless networks and point-to-point connections to provide secure authentication between a supplicant (a device that wants to access the network) and an authentication server (a device that verifies the credentials of the supplicant). for user authentication with a RADIUS server Remote Authentication Dial-In User Service (RADIUS) is a network protocol that provides centralized authentication, authorization, and accounting (AAA) management for users who connect and use a network service .
The Pairwise Temporal Key (PTK) is specific to each session: This option is false because PTK being specific to each session is not a weakness but a strength of WPA2-Personal. PTK being specific to each session means that it changes periodically during communication based on time or number of packets transmitted. This prevents replay attacks and increases security of data encryption.
It does not use the WPA 4-Way Handshake: This option is false because WPA2-Personal does use the WPA 4-Way Handshake for key negotiation. The WPA 4-Way Handshake is a process that allows the station and the access point to exchange ANonce and SNonce and derive PTK from PMK. The WPA 4-Way Handshake also allows the station and the access point to verify each other's PMK and confirm the installation of PTK.
NEW QUESTION # 124
What is the ideal Aruba access switch for a cost-effective connection to 200-380 clients, printers and APs per distribution rack?
Answer: A
Explanation:
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/
NEW QUESTION # 125
Match the Open Systems Interconnection (OSI) layer with its comparable member of the TCP/IP stack. (Options may be used more than once.)
Answer:
Explanation:
NEW QUESTION # 126
What is indicated by a solid amber radio status LED on an HPE Aruba Networking AP?
Answer: B
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.
NEW QUESTION # 127
......
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