HP HPE6-A78 Exam With Confidence Using Practice Dumps

To differentiate access control for faculty and students, the best approach is to use roles. By creating two roles - "faculty" and "student" - and applying the appropriate firewall policies to each, the university can enforce different access rules for each group. This is more efficient than managing multiple VLANs or WLANs because it allows for role-based access control, which is directly tied to user identity rather than just IP addresses or the network they are connected to.QUESTION NO: 105

The monitoring admin has asked you to set up an ArubaOS-Switch to meet these criteria:

• Send logs to a SIEM Syslog server at 10.4.13.15 at the standard UDP port (514)

• Send a log for all events at the "warning" level or above

The switch did not have any "logging" configuration on it. You then entered this command:

ArubaOS-Switch(config)# logging 10.4.13.15 udp

What should you do to finish configuring to the requirements?

A. Add categories (system-modules) at the global level.

B. Specify "warning" as the global level.

C. Ask for the Syslog password and configure it on the switch.

D. Configure logging as a debug destination.

Answer: B

To set up an ArubaOS-Switch to send logs to a SIEM syslog server at the specified criteria, you would need to specify the level of events that should be logged. Since the requirement is to log all events at the "warning" level or above, you should specify the syslog level after the logging server IP and port. The command should look like this:

ArubaOS-Switch(config)# logging 10.4.13.15 ArubaOS-Switch(config)# logging trap warning

This would set up the switch to send logs to the syslog server at the IP address 10.4.13.15 using the default UDP port (514), for all events at the "warning" level or above.

In an AOS-8 mobility architecture, the Mobility Controller (MC) manages user roles and policies for wireless clients connecting to SSIDs. When a user connects to an SSID with WPA3-Enterprise security, the MC uses 802.1X authentication to validate the user against an authentication server, in this case, HPE Aruba Networking ClearPass Policy Manager (CPPM). The SSID is configured with specific roles:

Initial role: Applied before authentication begins (not specified in the question, but typically used for pre-authentication access).

Logon role: Applied during the authentication process to allow access to authentication services (e.g., DNS, DHCP, or RADIUS traffic).

802.1X default role (guest): Applied if 802.1X authentication fails or if no specific role is assigned by the RADIUS server after successful authentication.

In this scenario, the user successfully authenticates, and CPPM sends an Access-Accept message with an Aruba-User-Role Vendor-Specific Attribute (VSA) set to "contractor." The "contractor" role exists on the MC, meaning it is a predefined role in the MC’s configuration.

When the MC receives the Aruba-User-Role VSA, it applies the specified role ("contractor") to the user session, overriding the default 802.1X role ("guest"). The MC does not combine the contractor role with other roles like logon or guest; it applies only the role specified by the RADIUS server (CPPM) in the Aruba-User-Role VSA. This is the standard behavior in AOS-8 for role assignment after successful authentication when a VSA specifies a role.

Option A, "Applies the rules in the logon role, then guest role, and the contractor role," is incorrect because the MC does not apply multiple roles in sequence. The logon role is used only during authentication, and the guest role (default 802.1X role) is overridden by the contractor role specified in the VSA.

Option C, "Applies the rules in the contractor role and the logon role," is incorrect because the logon role is no longer applied once authentication is complete; only the contractor role is applied.

Option D, "Applies the rules in the contractor role and guest role," is incorrect because the guest role (default 802.1X role) is not applied when a specific role is assigned via the Aruba-User-Role VSA.

The HPE Aruba Networking AOS-8 8.11 User Guide states:

"When a user authenticates successfully via 802.1X, the Mobility Controller applies the role specified in the Aruba-User-Role VSA returned by the RADIUS server in the Access-Accept message. If the role specified in the VSA exists on the controller, it is applied to the user session, overriding any default 802.1X role configured for the WLAN. The controller does not combine the VSA-specified role with other roles, such as the initial, logon, or default roles." (Page 305, Role Assignment Section)

Additionally, the HPE Aruba Networking ClearPass Policy Manager 6.11 User Guide notes:

"ClearPass can send the Aruba-User-Role VSA in a RADIUS Access-Accept message to assign a specific role to the user on Aruba Mobility Controllers. The role specified in the VSA takes precedence over any default roles configured on the WLAN, ensuring that the user is placed in the intended role." (Page 289, RADIUS Enforcement Section)

The company wants to deploy an open WLAN for guests with the following requirements:

Guests connect without entering a password (open authentication).

Guests are redirected to a welcome web page and log in (captive portal).

Encryption is provided for devices that support it.

Open WLAN with Captive Portal: An open WLAN means no pre-shared key (PSK) or 802.1X authentication is required to connect. A captive portal can be used to redirect users to a web page where they must log in (e.g., with guest credentials). This meets the requirement for guests to connect without a password and then log in via a web page.

Encryption for Capable Devices: The company wants to provide encryption for devices that support it, even on an open WLAN. Opportunistic Wireless Encryption (OWE) is a WPA3 feature designed for open networks. OWE provides encryption without requiring a password by negotiating unique encryption keys for each client using a Diffie-Hellman key exchange. OWE in transition mode allows both OWE-capable devices (which use encryption) and non-OWE devices (which connect without encryption) to join the same SSID, ensuring compatibility.

Option A, "Opportunistic Wireless Encryption (OWE) and WPA3-Personal," is incorrect. WPA3-Personal requires a pre-shared key (password), which conflicts with the requirement for guests to connect without entering a password.

Option B, "Captive portal and WPA3-Personal," is incorrect for the same reason. WPA3-Personal requires a password, which does not meet the open WLAN requirement.

Option C, "WPA3-Personal and MAC-Auth," is incorrect. WPA3-Personal requires a password, and MAC authentication (MAC-Auth) does not provide the web-based login experience (captive portal) specified in the requirements.

Option D, "Captive portal and Opportunistic Wireless Encryption (OWE) in transition mode," is correct. An open WLAN with OWE in transition mode allows guests to connect without a password, provides encryption for OWE-capable devices (e.g., WPA3 devices), and supports non-OWE devices without encryption. The captive portal ensures that guests are redirected to a welcome web page to log in, meeting all requirements.

The HPE Aruba Networking AOS-8 8.11 User Guide states:

"Opportunistic Wireless Encryption (OWE) is a WPA3 feature that provides encryption for open WLANs without requiring a password. In OWE transition mode, the WLAN supports both OWE-capable devices (which use encryption) and non-OWE devices (which connect without encryption) on the same SSID. This is ideal for guest networks where encryption is desired for capable devices, but compatibility with all devices is required. A captive portal can be configured on an open WLAN to redirect users to a login page, such as captive-portal guest-login, ensuring a seamless guest experience." (Page 290, OWE and Captive Portal Section)

Additionally, the HPE Aruba Networking Wireless Security Guide notes:

"OWE in transition mode is recommended for open guest WLANs where encryption is desired for devices that support it. Combined with a captive portal, this setup allows guests to connect without a password, get redirected to a login page, and benefit from encryption if their device supports OWE." (Page 35, Guest Network Security Section)