試験の準備方法-効率的なHPE6-A78学習関連題試験-100%合格率のHPE6-A78日本語認定

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>> HPE6-A78学習関連題 <<

HPE6-A78日本語認定 & HPE6-A78試験勉強過去問

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HP Aruba Certified Network Security Associate Exam 認定 HPE6-A78 試験問題 (Q159-Q164):

質問 # 159
How should admins deal with vulnerabilities that they find in their systems?

正解:A


質問 # 160
You are troubleshooting an authentication issue for Aruba switches that enforce 802 IX10 a cluster of Aruba ClearPass Policy Manager (CPPMs) You know that CPPM Is receiving and processing the authentication requests because the Aruba switches are showing Access-Rejects in their statistics However, you cannot find the record tor the Access-Rejects in CPPM Access Tracker What is something you can do to look for the records?

正解:D

解説:
If Access-Reject records are not showing up in the CPPM Access Tracker, one action you can take is to ensure that the CPPM cluster settings are configured to display Access-Rejects. Cluster-wide settings in CPPM can affect which records are visible in Access Tracker. Ensuring that these settings are correctly configured will allow you to view all relevant authentication records, including Access-Rejects.
References:
ClearPass Policy Manager documentation that includes information on cluster settings and Access Tracker configurations.
Troubleshooting guides for ClearPass that provide steps to resolve issues with viewing authentication records.


質問 # 161
An organization has HPE Aruba Networking infrastructure, including AOS-CX switches and an AOS-8 mobility infrastructure with Mobility Controllers (MCs) and APs. Clients receive certificates from ClearPass Onboard. The infrastructure devices authenticate clients to ClearPass Policy Manager (CPPM). The company wants to start profiling clients to take their device type into account in their access rights.
What is a role that CPPM should play in this plan?

正解:B

解説:
HPE Aruba Networking ClearPass Policy Manager (CPPM) is a network access control (NAC) solution that provides device profiling, authentication, and policy enforcement. In this scenario, the company wants to profile clients to determine their device type and use that information to define access rights. Device profiling in ClearPass involves identifying and categorizing devices based on various attributes, such as DHCP fingerprints, HTTP User-Agent strings, or TCP fingerprinting, to assign them to specific device categories (e.g., Windows, macOS, IoT devices, etc.). These categories can then be used in policy decisions to grant or restrict access.
Option A, "Assigning clients to their device categories," directly aligns with ClearPass's role in device profiling. ClearPass collects profiling data from network devices (like APs, MCs, or switches) and uses its profiling engine to categorize devices. This categorization is a core function of ClearPass Device Insight, which is integrated into CPPM, and is used to build policies based on device type.
Option B, "Helping to forward profiling information to the component responsible for profiling," is incorrect because ClearPass itself is the component responsible for profiling. It doesn't forward data to another system for profiling; instead, it collects data (e.g., via DHCP snooping, HTTP headers, or mirrored traffic) and processes it internally.
Option C, "Accepting and enforcing CoA messages," refers to ClearPass's ability to send Change of Authorization (CoA) messages to network devices to dynamically change a client's access rights (e.g., reassign a role or disconnect a session). While CoA is part of ClearPass's enforcement capabilities, it is not directly related to the profiling process or categorizing devices.
Option D, "Enforcing access control decisions," is a broader function of ClearPass. While ClearPass does enforce access control decisions based on profiling data (e.g., by assigning roles or VLANs), the question specifically asks about its role in the profiling process, not the enforcement step that follows.
The HPE Aruba Networking ClearPass Policy Manager 6.11 User Guide states:
"ClearPass Policy Manager provides a mechanism to profile devices that connect to the network. Device profiling collects information about a device during its authentication or through network monitoring (e.g., DHCP, HTTP, or SNMP). The collected data is used to identify and categorize the device into a device category (e.g., Computer, Smartphone, Printer, etc.) and device family (e.g., Windows, Android, etc.). These categories can then be used in policy conditions to enforce access control." (Page 245, Device Profiling Section) Additionally, the ClearPass Device Insight Data Sheet notes:
"ClearPass Device Insight uses a combination of passive and active profiling techniques to identify and classify devices. It assigns devices to categories based on their attributes, enabling organizations to create granular access policies." (Page 2)
:
HPE Aruba Networking ClearPass Policy Manager 6.11 User Guide, Device Profiling Section, Page 245.
ClearPass Device Insight Data Sheet, Page 2.


質問 # 162
A company with 439 employees wants to deploy an open WLAN for guests. The company wants the experience to be as follows:
*Guests select the WLAN and connect without having to enter a password.
*Guests are redirected to a welcome web page and log in.
The company also wants to provide encryption for the network for devices that are capable. Which security options should you implement for the WLAN?

正解:C

解説:
Opportunistic Wireless Encryption (OWE) provides encrypted communications on open Wi-Fi networks, which addresses the company's desire to have encryption without requiring a password for guests. It can work in transition mode, which allows for the use of OWE by clients that support it, while still permitting legacy clients to connect without encryption. Combining this with a captive portal enables the desired welcome web page for guests to log in.


質問 # 163
You are checking the Security Dashboard in the Web UI for your AOS solution and see that Wireless Intrusion Prevention (WIP) has discovered a rogue radio operating in ad hoc mode with open security. What correctly describes a threat that the radio could pose?

正解:C

解説:
The AOS Security Dashboard in an AOS-8 solution (Mobility Controllers or Mobility Master) provides visibility into wireless threats detected by the Wireless Intrusion Prevention (WIP) system. The scenario describes a rogue radio operating in ad hoc mode with open security. Ad hoc mode in 802.11 allows devices to communicate directly with each other without an access point (AP), forming a peer-to-peer network. Open security means no encryption or authentication is required to connect.
Ad Hoc Mode Threat: An ad hoc network created by a rogue device can pose significant risks, especially if a corporate client connects to it. Since ad hoc mode allows direct device-to-device communication, a client that joins the ad hoc network might inadvertently bridge the corporate LAN to the rogue network, especially if the client is also connected to the corporate network (e.g., via a wired connection or another wireless interface).
Option B, "It could open a backdoor into the corporate LAN for unauthorized users," is correct. If a corporate client connects to the rogue ad hoc network (e.g., due to a misconfiguration or auto-connect setting), the client might bridge the ad hoc network to the corporate LAN, allowing unauthorized users on the ad hoc network to access corporate resources. This is a common threat with ad hoc networks, as they bypass the security controls of the corporate AP infrastructure.
Option A, "It could be attempting to conceal itself from detection by changing its BSSID and SSID frequently," is incorrect. While changing BSSID and SSID can be a tactic to evade detection, this is not a typical characteristic of ad hoc networks and is not implied by the scenario. Ad hoc networks are generally visible to WIP unless explicitly hidden.
Option C, "It is running in a non-standard 802.11 mode and could effectively jam the wireless signal," is incorrect. Ad hoc mode is a standard 802.11 mode, not a non-standard one. While a rogue device could potentially jam the wireless signal, this is not a direct threat posed by ad hoc mode with open security.
Option D, "It is flooding the air with many wireless frames in a likely attempt at a DoS attack," is incorrect. There is no indication in the scenario that the rogue radio is flooding the air with frames. While ad hoc networks can be used in DoS attacks, the primary threat in this context is the potential for unauthorized access to the corporate LAN.
The HPE Aruba Networking AOS-8 8.11 User Guide states:
"A rogue radio operating in ad hoc mode with open security poses a significant threat, as it can open a backdoor into the corporate LAN. If a corporate client connects to the ad hoc network, it may bridge the ad hoc network to the corporate LAN, allowing unauthorized users to access corporate resources. This is particularly dangerous if the client is also connected to the corporate network via another interface." (Page 422, Wireless Threats Section) Additionally, the HPE Aruba Networking Security Guide notes:
"Ad hoc networks detected by WIP are a concern because they can act as a backdoor into the corporate LAN. A client that joins an ad hoc network with open security may inadvertently allow unauthorized users to access the corporate network, bypassing the security controls of authorized APs." (Page 73, Ad Hoc Network Threats Section)
:
HPE Aruba Networking AOS-8 8.11 User Guide, Wireless Threats Section, Page 422.
HPE Aruba Networking Security Guide, Ad Hoc Network Threats Section, Page 73.


質問 # 164
......

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