HPE6-A78 EXAMINATIONS ACTUAL QUESTIONS, EXAM HPE6-A78 CRAM REVIEW

HPE6-A78 Examinations Actual Questions, Exam HPE6-A78 Cram Review

HPE6-A78 Examinations Actual Questions, Exam HPE6-A78 Cram Review

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HPE6-A78 exam is a 90-minute exam consisting of 60 multiple-choice questions. HPE6-A78 exam is designed to test the candidate's knowledge, skills, and abilities in the area of network security. Candidates must pass the exam with a minimum score of 70% to obtain the Aruba Certified Network Security Associate certification. HPE6-A78 Exam is administered through Pearson VUE testing centers worldwide, and candidates can register for the exam through the Pearson VUE website. The HPE6-A78 exam is a valuable certification for IT professionals who want to demonstrate their expertise in network security and advance their careers in this field.

HP Aruba Certified Network Security Associate Exam Sample Questions (Q73-Q78):

NEW QUESTION # 73
You have deployed a new HPE Aruba Networking Mobility Controller (MC) and campus APs (CAPs). One of the WLANs enforces 802.1X authentication to HPE Aruba Networking ClearPass Policy Manager (CPPM). When you test connecting the client to the WLAN, the test fails. You check ClearPass Access Tracker and cannot find a record of the authentication attempt. You ping from the MC to CPPM, and the ping is successful.
What is a good next step for troubleshooting?

  • A. Renew CPPM's RADIUS/EAP certificate.
  • B. Reset the user credentials.
  • C. Check CPPM Event Viewer.
  • D. Check connectivity between CPPM and a backend directory server.

Answer: C

Explanation:
In this scenario, a new HPE Aruba Networking Mobility Controller (MC) and campus APs (CAPs) are deployed, with a WLAN configured for 802.1X authentication using HPE Aruba Networking ClearPass Policy Manager (CPPM) as the RADIUS server. A client test fails, and no record of the authentication attempt appears in ClearPass Access Tracker. However, a ping from the MC to CPPM is successful, confirming basic network connectivity between the MC and CPPM.
The absence of a record in Access Tracker indicates that CPPM did not receive the RADIUS authentication request from the MC, or the request was rejected at a low level before being logged in Access Tracker. Access Tracker typically logs all RADIUS authentication attempts (successful or failed), so the lack of a record suggests a configuration or connectivity issue at the RADIUS level.
Option C, "Check CPPM Event Viewer," is correct. The CPPM Event Viewer logs system-level events, including RADIUS-related errors that might not appear in Access Tracker. For example, if the MC's IP address is not configured as a Network Access Device (NAD) in CPPM, or if the shared secret between the MC and CPPM does not match, CPPM may reject the RADIUS request before it reaches Access Tracker. The Event Viewer will log such errors (e.g., "RADIUS authentication attempt from unknown NAD"), providing insight into why the request was not processed.
Option A, "Renew CPPM's RADIUS/EAP certificate," is incorrect because the issue is that CPPM did not receive or process the authentication request (no record in Access Tracker). If there were a certificate issue (e.g., an expired or untrusted certificate), the request would still reach CPPM, and Access Tracker would log a failure with a certificate-related error.
Option B, "Check connectivity between CPPM and a backend directory server," is incorrect because the issue occurs before CPPM processes the authentication request. If CPPM cannot contact a backend directory server (e.g., Active Directory), the authentication attempt would still be logged in Access Tracker with a failure reason related to the directory server.
Option D, "Reset the user credentials," is incorrect because the issue is not related to the user's credentials. The authentication request never reached CPPM, so the credentials were not evaluated.
The HPE Aruba Networking ClearPass Policy Manager 6.11 User Guide states:
"If an authentication attempt does not appear in Access Tracker, it indicates that the RADIUS request was not received by ClearPass or was rejected at a low level before being logged. The Event Viewer (Monitoring > Event Viewer) should be checked for system-level errors, such as 'RADIUS authentication attempt from unknown NAD' or shared secret mismatches. For example, if the Network Access Device (NAD) IP address of the Mobility Controller is not configured in ClearPass, or if the shared secret does not match, the request will be dropped, and an error will be logged in the Event Viewer." (Page 301, Troubleshooting RADIUS Issues Section) Additionally, the HPE Aruba Networking AOS-8 8.11 User Guide notes:
"When troubleshooting 802.1X authentication issues, verify that the Mobility Controller can communicate with the RADIUS server. If a ping is successful but no authentication records appear in the RADIUS server's logs (e.g., ClearPass Access Tracker), check the RADIUS server's system logs (e.g., ClearPass Event Viewer) for errors related to NAD configuration or shared secret mismatches." (Page 498, Troubleshooting 802.1X Authentication Section)
:
HPE Aruba Networking ClearPass Policy Manager 6.11 User Guide, Troubleshooting RADIUS Issues Section, Page 301.
HPE Aruba Networking AOS-8 8.11 User Guide, Troubleshooting 802.1X Authentication Section, Page 498.


NEW QUESTION # 74
A company with 382 employees wants to deploy an open WLAN for guests. The company wants the experience to be as follows:

The company also wants to provide encryption for the network for devices mat are capable, you implement Tor the WLAN?
Which security options should

  • A. WPA3-Personal and MAC-Auth
  • B. Captive portal and WPA3-Personai
  • C. Opportunistic Wireless Encryption (OWE) and WPA3-Personal
  • D. Captive portal and Opportunistic Wireless Encryption (OWE) in transition mode

Answer: D

Explanation:
For a company that wants to deploy an open WLAN for guests with the ease of access and encryption for capable devices, using a captive portal with Opportunistic Wireless Encryption (OWE) in transition mode would be suitable. The captive portal allows for a user-friendly login page for authentication without a pre-shared key, and OWE provides encryption to protect user data without the complexities of traditional WPA or WPA2 encryption, which is ideal for guest networks. Transition mode allows devices that support OWE to use it while still allowing older or unsupported devices to connect.
:
Wi-Fi Alliance recommendations for OWE.
Best practices for guest Wi-Fi network setup.


NEW QUESTION # 75
What is an Authorized client, as defined by AOS Wireless Intrusion Prevention System (WIP)?

  • A. A client that is NOT on the WIP blacklist
  • B. A client that has a certificate issued by a trusted Certification Authority (CA)
  • C. A client that is on the WIP whitelist
  • D. A client that has successfully authenticated to an authorized AP and passed encrypted traffic

Answer: D

Explanation:
The AOS Wireless Intrusion Prevention System (WIP) in an AOS-8 architecture (Mobility Controllers or Mobility Master) is designed to detect and mitigate wireless threats, such as rogue APs and unauthorized clients. WIP classifies clients and APs based on their behavior and status in the network.
Authorized Client Definition: In the context of WIP, an "Authorized" client is one that has successfully authenticated to an authorized AP (an AP managed by the MC and part of the company's network) and is actively passing encrypted traffic. This typically means the client has completed 802.1X authentication (e.g., in a WPA3-Enterprise network) or PSK authentication (e.g., in a WPA3-Personal network) and is communicating securely with the AP.
Option D, "A client that has successfully authenticated to an authorized AP and passed encrypted traffic," is correct. This matches the WIP definition of an Authorized client: the client must authenticate to an AP that is classified as "Authorized" (i.e., part of the company's network) and must be passing encrypted traffic, indicating a secure connection (e.g., using WPA3 encryption).
Option A, "A client that is on the WIP whitelist," is incorrect. WIP does not use a client whitelist for classification. The AP whitelist is used to authorize APs, not clients. Client classification (e.g., Authorized, Interfering) is based on their authentication status and connection to authorized APs.
Option B, "A client that has a certificate issued by a trusted Certification Authority (CA)," is incorrect. While a certificate might be used for 802.1X authentication (e.g., EAP-TLS), WIP does not classify clients as Authorized based on their certificate status. The classification depends on successful authentication to an authorized AP and encrypted traffic.
Option C, "A client that is NOT on the WIP blacklist," is incorrect. WIP does use blacklisting (e.g., for clients that violate security policies), but being "not on the blacklist" does not make a client Authorized. A client must actively authenticate to an authorized AP and pass encrypted traffic to be classified as Authorized.
The HPE Aruba Networking AOS-8 8.11 User Guide states:
"In the Wireless Intrusion Prevention (WIP) system, an 'Authorized' client is defined as a client that has successfully authenticated to an authorized AP and is passing encrypted traffic. An authorized AP is one that is managed by the Mobility Controller and part of the company's network. For example, a client that completes 802.1X authentication to an authorized AP using WPA3-Enterprise and sends encrypted traffic is classified as Authorized." (Page 414, WIP Client Classification Section) Additionally, the HPE Aruba Networking Security Guide notes:
"WIP classifies clients as 'Authorized' if they have authenticated to an authorized AP and are passing encrypted traffic, indicating a secure connection. Clients that are not authenticated or are connected to rogue or neighbor APs are classified as 'Interfering' or other categories, depending on their behavior." (Page 78, WIP Classifications Section)
:
HPE Aruba Networking AOS-8 8.11 User Guide, WIP Client Classification Section, Page 414.
HPE Aruba Networking Security Guide, WIP Classifications Section, Page 78.


NEW QUESTION # 76
Refer to the exhibits.
A company has added a new user group. Users in the group try to connect to the WLAN and receive errors that the connection has no Internet access. The users cannot reach any resources. The first exhibit shows the record for one of the users who cannot connect. The second exhibit shows the role to which the AOS device assigned the user's client.
What is a likely problem?

  • A. The role name that CPPM is sending does not match the role name configured on the AOS device.
  • B. The AOS device does not have the correct RADIUS dictionaries installed on it to understand the Aruba-User-Role VSA.
  • C. The AOS device has a server derivation rule configured on it that has overridden the role sent by CPPM.
  • D. The clients rejected the server authentication on their side because they do not have the root CA for CPPM's RADIUS/EAP certificate.

Answer: A

Explanation:
The scenario involves an AOS-8 Mobility Controller (MC) with a WLAN where a new user group has been added. Users in this group cannot connect to the WLAN, receiving errors indicating no Internet access and inability to reach resources. Exhibit 1 shows the ClearPass Policy Manager (CPPM) Access Tracker record for one user:
CPPM sends an Access-Accept with the VSA Radius:Aruba:Aruba-User-Role user_group4.
The endpoint is classified as "Known," but the user cannot access resources. Exhibit 2 (not provided but described) shows that the AOS device (MC) assigned the user's client to the "denyall" role, which likely denies all access, explaining the lack of Internet and resource access.
Analysis:
CPPM sends the Aruba-User-Role VSA with the value "user_group4," indicating that the user should be assigned to the "user_group4" role on the MC.
However, the MC assigns the client to the "denyall" role, which typically denies all traffic, resulting in no Internet or resource access.
The issue lies in why the MC did not apply the "user_group4" role sent by CPPM.
Option A, "The AOS device does not have the correct RADIUS dictionaries installed on it to understand the Aruba-User-Role VSA," is incorrect. If the MC did not have the correct RADIUS dictionaries to understand the Aruba-User-Role VSA, it would not process the VSA at all, and the issue would likely affect all users, not just the new user group. Additionally, Aruba-User-Role is a standard VSA in AOS-8, and the dictionaries are built into the system.
Option B, "The AOS device has a server derivation rule configured on it that has overridden the role sent by CPPM," is incorrect. Server derivation rules on the MC can override roles sent by the RADIUS server (e.g., based on attributes like username or NAS-IP), but there is no indication in the scenario that such a rule is configured. If a derivation rule were overriding the role, it would likely affect more users, and the issue would not be specific to the new user group.
Option C, "The clients rejected the server authentication on their side because they do not have the root CA for CPPM's RADIUS/EAP certificate," is incorrect. If the clients rejected the server authentication (e.g., due to a missing root CA for CPPM's certificate), the authentication would fail entirely, and CPPM would not send an Access-Accept with the Aruba-User-Role VSA. The scenario confirms that authentication succeeded (Access-Accept was sent), so this is not the issue.
Option D, "The role name that CPPM is sending does not match the role name configured on the AOS device," is correct. CPPM sends the role "user_group4" in the Aruba-User-Role VSA, but the MC assigns the client to the "denyall" role. This suggests that the role "user_group4" does not exist on the MC, or there is a mismatch in the role name (e.g., due to case sensitivity, typos, or underscores vs. hyphens). In AOS-8, if the role specified in the Aruba-User-Role VSA does not exist on the MC, the MC falls back to a default role, which in this case appears to be "denyall," denying all access. The likely problem is that the role name "user_group4" sent by CPPM does not match the role name configured on the MC (e.g., it might be "user-group4" or a different name).
The HPE Aruba Networking AOS-8 8.11 User Guide states:
"When the Mobility Controller receives an Aruba-User-Role VSA in a RADIUS Access-Accept message, it attempts to assign the specified role to the client. If the role name sent by the RADIUS server (e.g., 'user_group4') does not match a role configured on the controller, the controller will fall back to a default role, such as 'denyall,' which may deny all access. To resolve this, ensure that the role name sent by the RADIUS server matches the role name configured on the controller, accounting for case sensitivity and naming conventions (e.g., underscores vs. hyphens)." (Page 306, Role Assignment Troubleshooting Section) Additionally, the HPE Aruba Networking ClearPass Policy Manager 6.11 User Guide notes:
"A common issue when assigning roles via the Aruba-User-Role VSA is a mismatch between the role name sent by ClearPass and the role name configured on the Aruba device. If the role name does not match (e.g., 'user_group4' vs. 'user-group4'), the device will not apply the intended role, and the client may be assigned a default role like 'denyall,' resulting in access issues. Verify that the role names match exactly in both ClearPass and the device configuration." (Page 290, RADIUS Role Assignment Issues Section)
:
HPE Aruba Networking AOS-8 8.11 User Guide, Role Assignment Troubleshooting Section, Page 306.
HPE Aruba Networking ClearPass Policy Manager 6.11 User Guide, RADIUS Role Assignment Issues Section, Page 290.


NEW QUESTION # 77
What is a Key feature of me ArubaOS firewall?

  • A. The firewall is stateful which means that n can track client sessions and automatically allow return traffic for permitted sessions
  • B. The firewall examines all traffic at Layer 2 through Layer 4 and uses source IP addresses as the primary way to determine how to control traffic.
  • C. The firewall is designed to fitter traffic primarily based on wireless 802.11 headers, making it ideal for mobility environments
  • D. The firewall Includes application layer gateways (ALGs). which it uses to filter Web traffic based on the reputation of the destination web site.

Answer: A

Explanation:
The ArubaOS firewall is a stateful firewall, meaning that it can track the state of active sessions and can make decisions based on the context of the traffic. This stateful inspection capability allows it to automatically allow return traffic for sessions that it has permitted, thereby enabling seamless two-way communication for authorized users while maintaining the security posture of the network.
:
ArubaOS firewall documentation.


NEW QUESTION # 78
......

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