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HP HPE6-A78 Test Pattern | Exam HPE6-A78 Preview
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HP HPE6-A78 exam is a certification exam that is designed to test the knowledge and skills of network security professionals who want to enhance their skills and knowledge in network security and wireless networking. Aruba Certified Network Security Associate Exam certification is specifically focused on Aruba Certified Network Security Associate (ACNSA) certification, which is a widely recognized certification in the industry. HPE6-A78 exam is challenging and covers a wide range of network security topics, making it ideal for network security professionals who want to enhance their skills and knowledge in network security and wireless networking.
HP HPE6-A78, also known as the Aruba Certified Network Security Associate (ACNSA) Exam, is a certification exam designed to test the candidate's knowledge and skills in network security concepts and technologies. HPE6-A78 Exam is targeted towards individuals who are interested in pursuing a career in network security and want to validate their understanding of Aruba's network security solutions. HPE6-A78 exam covers a wide range of topics, including but not limited to firewall policies, intrusion detection and prevention, network access control, and VPN technologies.
HP Aruba Certified Network Security Associate Exam Sample Questions (Q99-Q104):
NEW QUESTION # 99
What is one way that Control Plane Security (CPsec) enhances security for me network?
Answer: A
NEW QUESTION # 100
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?
Answer: B
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 # 101
Refer to the exhibit, which shows the settings on the company's MCs.
You have deployed about 100 new HPE Aruba Networking 335 APs. What is required for the APs to become managed?
Answer: B
Explanation:
The scenario involves an AOS-8 Mobility Controller (MC) with Control Plane Security (CPSec) enabled and auto certificate provisioning disabled. CPSec is a feature that secures the control plane communication between the MC and APs using certificates. When CPSec is enabled, APs must be authorized and trusted by the MC to become managed.
CPSec Enabled, Auto Cert Provisioning Disabled: When CPSec is enabled, APs must have a valid certificate to establish a secure control plane connection with the MC. If auto certificate provisioning is disabled (as shown in the exhibit), the MC does not automatically provision certificates to the APs. Instead, the APs must already have a factory-installed certificate (or a manually installed certificate), and the MC must trust the AP's certificate by having the issuing CA in its trust list. Additionally, the AP must be on the MC's AP whitelist to be authorized.
AP Whitelist: The AP whitelist is a list of authorized APs maintained on the MC (or Mobility Master, MM, if present). For an AP to become managed, its MAC address must be in the whitelist, especially when CPSec is enabled and auto provisioning is disabled. This ensures that only authorized APs can connect to the MC.
Option A, "Installing CA-signed certificates on the APs," is incorrect because HPE Aruba Networking APs, such as the 335 series, come with factory-installed certificates signed by Aruba's CA. These certificates are sufficient for CPSec, provided the MC trusts the Aruba CA (which is typically preconfigured). Manually installing CA-signed certificates is not required unless the factory certificates are not used or trusted.
Option B, "Approving the APs as authorized APs on the AP whitelist," is correct. With CPSec enabled and auto cert provisioning disabled, the APs must be explicitly authorized by adding their MAC addresses to the AP whitelist on the MC. This step ensures that the MC accepts the AP's certificate and allows it to become managed.
Option C, "Installing self-signed certificates on the APs," is incorrect because self-signed certificates are not typically used for CPSec. APs use factory-installed certificates, and the MC must trust the issuing CA. Self-signed certificates would require manual trust configuration on the MC, which is not a standard practice.
Option D, "Configuring a PAPI key that matches on the APs and MCs," is incorrect. PAPI (Protocol for AP Provisioning and Information) keys are used for securing communication between APs and the MC in non-CPSec environments or for specific configurations (e.g., when CPSec is disabled). When CPSec is enabled, certificate-based authentication replaces the need for a PAPI key.
The HPE Aruba Networking AOS-8 8.11 User Guide states:
"When Control Plane Security (CPSec) is enabled and auto certificate provisioning is disabled, APs must be authorized by adding their MAC addresses to the AP whitelist on the Mobility Controller (or Mobility Master). The AP uses its factory-installed certificate to establish a secure control plane connection with the MC. The MC must trust the CA that issued the AP's certificate (e.g., Aruba's CA), and the AP must be in the whitelist to become managed. To add an AP to the whitelist, navigate to Configuration > Access Points > AP Whitelist in the MC UI and add the AP's MAC address." (Page 395, CPSec Configuration Section) Additionally, the HPE Aruba Networking CPSec Deployment Guide notes:
"If auto cert provisioning is disabled, the AP whitelist becomes mandatory for CPSec. Each AP must be explicitly approved by adding its MAC address to the whitelist, ensuring that only authorized APs can connect to the MC. The AP's factory certificate is used for authentication, and no manual certificate installation is required on the AP." (Page 12, CPSec with Manual Provisioning Section)
:
HPE Aruba Networking AOS-8 8.11 User Guide, CPSec Configuration Section, Page 395.
HPE Aruba Networking CPSec Deployment Guide, CPSec with Manual Provisioning Section, Page 12.
NEW QUESTION # 102
Refer to the exhibit.
A diem is connected to an ArubaOS Mobility Controller. The exhibit snows all Tour firewall rules that apply to this diem What correctly describes how the controller treats HTTPS packets to these two IP addresses, both of which are on the other side of the firewall
10.1 10.10
203.0.13.5
Answer: D
Explanation:
Referring to the exhibit, the ArubaOS Mobility Controller treats HTTPS packets based on the firewall rules applied to the client. The rule that allows svc-https service for destination IP range 10.1.0.0 255.255.0.0 would permit an HTTPS packet to 10.1.10.10 since this IP address falls within the specified range. There are no rules shown that would allow traffic to the IP address 203.0.13.5; hence, the packet to this address would be dropped.
:
ArubaOS firewall configuration guides detailing how firewall rules are interpreted and applied to traffic.
Network security textbooks explaining firewall rule processing and packet filtering based on source and destination IP addresses.
NEW QUESTION # 103
You are managing an Aruba Mobility Controller (MC). What is a reason for adding a "Log Settings" definition in the ArubaOS Diagnostics > System > Log Settings page?
Answer: C
NEW QUESTION # 104
......
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