HPE6-A78 STUDY MATERIALS & HPE6-A78 EXAM PREPARATION & HPE6-A78 PASS SCORE

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HPE6-A78 study materials & HPE6-A78 exam preparation & HPE6-A78 pass score

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HP Aruba Certified Network Security Associate Exam Sample Questions (Q141-Q146):

NEW QUESTION # 141
You have an Aruba solution with multiple Mobility Controllers (MCs) and campus APs. You want to deploy a WPA3-Enterprise WLAN and authenticate users to Aruba ClearPass Policy Manager (CPPM) with EAP-TLS.
What is a guideline for ensuring a successful deployment?

  • A. Ensure that clients trust the root CA for the MCs' Server Certificates.
  • B. Educate users in selecting strong passwords with at least 8 characters.
  • C. Deploy certificates to clients, signed by a CA that CPPM trusts.
  • D. Avoid enabling CNSA mode on the WLAN, which requires the internal MC RADIUS server.

Answer: C

Explanation:
For WPA3-Enterprise with EAP-TLS, it's crucial that clients have a trusted certificate installed for the authentication process. EAP-TLS relies on a mutual exchange of certificates for authentication. Deploying client certificates signed by a CA that CPPM trusts ensures that the ClearPass Policy Manager can verify the authenticity of the client certificates during the TLS handshake process. Trust in the root CA is typically required for the server side of the authentication process, not the client side, which is covered by the client's own certificate.


NEW QUESTION # 142
What is a consideration for implementing wireless containment in response to unauthorized devices discovered by ArubaOS Wireless Intrusion Detection (WIP)?

  • A. It is best practice to implement automatic containment of unauthorized devices to eliminate the need to locate and remove them.
  • B. Your company should consider legal implications before you enable automatic containment or implement manual containment.
  • C. Wireless containment only works against unauthorized wireless devices that connect to your corporate LAN, so it does not offer protection against Interfering APs.
  • D. Because wireless containment has a lower risk of targeting legitimate neighbors than wired containment, it is recommended in most use cases.

Answer: B

Explanation:
When implementing wireless containment as a response to unauthorized devices, a company should consider the legal implications. Wireless containment might affect devices that are not part of the company's network and could be considered as a form of interference. This could have legal consequences, and therefore, such actions should be carefully reviewed and ideally should be performed in a targeted and controlled manner, reducing the risk of legal issues.


NEW QUESTION # 143
An MC has a WLAN that enforces WPA3-Enterprise with authentication to HPE Aruba Networking ClearPass Policy Manager (CPPM). The WLAN's default role is set to guest. A Mobility Controller (MC) has these roles configured on it:
authenticated
denyall
guest
general-access
guest-logon
logon
stateful-dot1x
switch-logon
voice
A client authenticates. CPPM returns an Access-Accept with an Aruba-User-Role VSA set to general_access. What role does the client receive?

  • A. guest
  • B. authenticated
  • C. general-access
  • D. logon

Answer: C

Explanation:
In an AOS-8 Mobility Controller (MC) environment, a WLAN is configured with WPA3-Enterprise security, using HPE Aruba Networking ClearPass Policy Manager (CPPM) for authentication. The WLAN's default role is set to "guest," which would be applied if no specific role is assigned after authentication. The MC has several roles configured, including "general-access" (note the underscore in the question : "general
_access").
The client successfully authenticates, and CPPM sends an Access-Accept message with an Aruba-User-Role Vendor-Specific Attribute (VSA) set to "general_access." In AOS-8, the Aruba-User-Role VSA is used to assign a specific role to the client, overriding the default role configured on the WLAN. The role specified in the VSA must match a role that exists on the MC. Since "general-access" (or "general_access" as written in the question) is listed among the roles configured on the MC, the MC will apply this role to the client.
The underscore in "general_access" in the VSA versus the hyphen in "general-access" in the MC's role list is likely a typographical inconsistency in the question. In practice, AOS-8 role names are case-insensitive and typically use hyphens, not underscores, but for the purpose of this question, we assume "general_access" matches "general-access" as the intended role.
Option A, "guest," is incorrect because the guest role is the default 802.1X role for the WLAN, but it is overridden by the Aruba-User-Role VSA specifying "general_access." Option B, "logon," is incorrect because the logon role is typically applied during the authentication process (e.g., to allow access to DNS or RADIUS servers), not after successful authentication when a specific role is assigned.
Option C, "general-access," is correct because the MC applies the role specified in the Aruba-User-Role VSA ("general_access"), which matches the "general-access" role configured on the MC.
Option D, "authenticated," is incorrect because the "authenticated" role is not specified in the VSA, and there is no indication that it is the default role for successful authentication in this scenario.
The HPE Aruba Networking AOS-8 8.11 User Guide states:
"When a client authenticates successfully via 802.1X, the Mobility Controller checks for an Aruba-User-Role VSA in the RADIUS Access-Accept message. If the VSA is present and the specified role exists on the controller, the controller assigns that role to the client, overriding the default 802.1X role configured for the WLAN. For example, if the VSA specifies 'general-access' and this role is configured on the controller, the client will be assigned the 'general-access' role." (Page 305, Role Assignment Section) Additionally, the HPE Aruba Networking ClearPass Policy Manager 6.11 User Guide notes:
"The Aruba-User-Role VSA allows ClearPass to assign a specific role to a client on an Aruba Mobility Controller. The role name sent in the VSA must match a role configured on the controller, and the controller will apply this role to the client session, ignoring the default role for the WLAN." (Page 289, RADIUS Enforcement Section)
:
HPE Aruba Networking AOS-8 8.11 User Guide, Role Assignment Section, Page 305.
HPE Aruba Networking ClearPass Policy Manager 6.11 User Guide, RADIUS Enforcement Section, Page 289.


NEW QUESTION # 144
You are deploying an Aruba Mobility Controller (MC). What is a best practice for setting up secure management access to the ArubaOS Web UP

  • A. Avoid using external manager authentication tor the Web UI.
  • B. Install a CA-signed certificate to use for the Web UI server certificate.
  • C. Make sure to enable HTTPS for the Web UI and select the self-signed certificate Installed in the factory.
  • D. Change the default 4343 port tor the web UI to TCP 443.

Answer: B

Explanation:
For securing management access to the ArubaOS Web UI of an Aruba Mobility Controller (MC), it is a best practice to install a certificate signed by a Certificate Authority (CA). This ensures that communications between administrators and the MC are secured with trusted encryption, which greatly reduces the risk of man-in-the-middle attacks. Using a CA-signed certificate enhances the trustworthiness of the connection over self-signed certificates, which do not offer the same level of assurance.
:
ArubaOS documentation on management access security.


NEW QUESTION # 145
What is a difference between passive and active endpoint classification?

  • A. Passive classification classifies endpoints based on entries in dictionaries, while active classification uses admin-defined rules to classify endpoints.
  • B. Passive classification is only suitable for profiling endpoints in small business environments, while enterprises should use active classification exclusively.
  • C. Passive classification refers exclusively to MAC OUI-based classification, while active classification refers to any other classification method.
  • D. Passive classification analyzes traffic that endpoints send as part of their normal functions; active classification involves sending requests to endpoints.

Answer: D

Explanation:
HPE Aruba Networking ClearPass Policy Manager (CPPM) uses endpoint classification (profiling) to identify and categorize devices on the network, enabling policy enforcement based on device type, OS, or other attributes. CPPM supports two primary profiling methods: passive and active classification.
Passive Classification: This method involves observing network traffic that endpoints send as part of their normal operation, without CPPM sending any requests to the device. Examples include DHCP fingerprinting (analyzing DHCP Option 55), HTTP User-Agent string analysis, and TCP fingerprinting (analyzing TTL and window size). Passive classification is non-intrusive and does not generate additional network traffic.
Active Classification: This method involves CPPM sending requests to the endpoint to gather information. Examples include SNMP scans (to query device details), WMI scans (for Windows devices), and SSH scans (to gather system information). Active classification is more intrusive and may require credentials or network access to the device.
Option A, "Passive classification refers exclusively to MAC OUI-based classification, while active classification refers to any other classification method," is incorrect. Passive classification includes more than just MAC OUI-based classification (e.g., DHCP fingerprinting, TCP fingerprinting). MAC OUI (Organizationally Unique Identifier) analysis is one passive method, but not the only one. Active classification specifically involves sending requests, not just "any other method." Option B, "Passive classification classifies endpoints based on entries in dictionaries, while active classification uses admin-defined rules to classify endpoints," is incorrect. Both passive and active classification use CPPM's fingerprint database (not "dictionaries") to match device attributes. Admin-defined rules are used for policy enforcement, not classification, and apply to both methods.
Option C, "Passive classification is only suitable for profiling endpoints in small business environments, while enterprises should use active classification exclusively," is incorrect. Passive classification is widely used in enterprises because it is non-intrusive and scalable. Active classification is often used in conjunction with passive methods to gather more detailed information, but enterprises do not use it exclusively.
Option D, "Passive classification analyzes traffic that endpoints send as part of their normal functions; active classification involves sending requests to endpoints," is correct. This accurately describes the fundamental difference between the two methods: passive classification observes existing traffic, while active classification actively queries the device.
The HPE Aruba Networking ClearPass Policy Manager 6.11 User Guide states:
"Passive classification analyzes traffic that endpoints send as part of their normal functions, such as DHCP requests, HTTP traffic, or TCP packets, without ClearPass sending any requests to the device. Examples include DHCP fingerprinting and TCP fingerprinting. Active classification involves ClearPass sending requests to the endpoint to gather information, such as SNMP scans, WMI scans, or SSH scans, which may require credentials or network access." (Page 246, Passive vs. Active Profiling Section) Additionally, the ClearPass Device Insight Data Sheet notes:
"Passive classification observes network traffic generated by endpoints during normal operation, such as DHCP or HTTP traffic, to identify devices without generating additional traffic. Active classification, in contrast, sends requests to endpoints (e.g., SNMP or WMI scans) to gather detailed information, which can be more intrusive but provides deeper insights." (Page 3, Profiling Methods Section)
:
HPE Aruba Networking ClearPass Policy Manager 6.11 User Guide, Passive vs. Active Profiling Section, Page 246.
ClearPass Device Insight Data Sheet, Profiling Methods Section, Page 3.


NEW QUESTION # 146
......

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