Free Access to HP.HPE6-A78.v2026-01-19.q107 with Valid Practice Test (Page 16)

Question 71

Refer to the exhibits.
An admin has created a WLAN that uses the settings shown in the exhibits (and has not otherwise adjusted the settings in the AAA profile). A client connects to the WLAN. Under which circumstances will a client receive the default role assignment?

A.The client has attempted 802.1X authentication, but the MC could not contact the authentication server.
B.The client has passed 802.1X authentication, and the authentication server did not send an Aruba-User-Role VSA.
C.The client has attempted 802.1X authentication, but failed to maintain a reliable connection, leading to a timeout error.
D.The client has passed 802.1X authentication, and the value in the Aruba-User-Role VSA matches a role on the MC.

Correct Answer: B

The exhibit shows the configuration of a WLAN on an AOS-8 Mobility Controller (MC) with the following settings:
Key management: WPA3-Enterprise (indicating 802.1X authentication).
Use CNSA suite: Unchecked (using standard encryption, not the Commercial National Security Algorithm suite).
Key size: 128 bits (standard for AES-GCMP in WPA3).
Reauth interval: 1440 minutes (24 hours, the interval for re-authentication).
Machine authentication: Disabled (only user authentication is required).
Blacklisting: Disabled (clients are not blacklisted after failed attempts).
The question states that the AAA profile settings have not been adjusted, meaning the default roles (e.g., initial role, logon role, 802.1X default role) are not specified in the exhibit and are assumed to be the system defaults (e.g., "logon" for the initial and logon roles, and a default role like "guest" for the 802.1X default role). The question asks under which circumstances a client will receive the "default role assignment," which refers to the 802.1X default role configured in the AAA profile for the WLAN.
802.1X Authentication Process in AOS-8:
When a client connects to a WPA3-Enterprise WLAN, it starts in the initial role (typically "logon") to allow basic connectivity (e.g., DHCP, DNS).
During 802.1X authentication, the client is placed in the logon role to allow communication with the authentication server (e.g., ClearPass Policy Manager, CPPM).
If authentication succeeds, the client is assigned a role:
If the authentication server (e.g., CPPM) sends an Aruba-User-Role VSA with a role that exists on the MC, the client is assigned that role.
If no Aruba-User-Role VSA is sent, the client is assigned the 802.1X default role configured in the AAA profile for the WLAN.
If authentication fails or the server is unreachable, the client may be assigned a different role (e.g., a critical role, if configured) or denied access.
Option A, "The client has attempted 802.1X authentication, but the MC could not contact the authentication server," is incorrect. If the MC cannot contact the authentication server (e.g., due to a timeout), the client does not receive the 802.1X default role. Instead, the MC may apply a critical role (if configured) or deny access, depending on the configuration. The 802.1X default role is applied only after successful authentication.
Option B, "The client has passed 802.1X authentication, and the authentication server did not send an Aruba-User-Role VSA," is correct. If the client successfully authenticates via 802.1X and the authentication server (e.g., CPPM) does not send an Aruba-User-Role VSA, the MC assigns the client the 802.1X default role configured in the AAA profile for the WLAN. This is the "default role assignment" referred to in the question.
Option C, "The client has attempted 802.1X authentication, but failed to maintain a reliable connection, leading to a timeout error," is incorrect. A timeout error during authentication (e.g., the client fails to respond to EAP messages) typically results in an authentication failure, not a successful authentication. The client would not receive the 802.1X default role; it might be denied access or placed in a different role (e.g., a pre-authentication role).
Option D, "The client has passed 802.1X authentication, and the value in the Aruba-User-Role VSA matches a role on the MC," is incorrect. If the authentication server sends an Aruba-User-Role VSA with a role that exists on the MC, the client is assigned that specific role, not the 802.1X default role.
The HPE Aruba Networking AOS-8 8.11 User Guide states:
"After a client successfully authenticates via 802.1X, the Mobility Controller assigns a role to the client. If the authentication server (e.g., a RADIUS server) sends an Aruba-User-Role VSA with a role that exists on the controller, the client is assigned that role. If no Aruba-User-Role VSA is sent in the Access-Accept message, the client is assigned the 802.1X default role configured in the AAA profile for the WLAN. For example, if the AAA profile specifies 'guest' as the 802.1X default role, the client will be assigned the 'guest' role." (Page 305, Role Assignment Section) Additionally, the HPE Aruba Networking Wireless Security Guide notes:
"In WPA3-Enterprise with 802.1X authentication, the default role assignment occurs when a client successfully authenticates but the authentication server does not specify a role via the Aruba-User-Role VSA. In this case, the client receives the 802.1X default role defined in the AAA profile, such as 'guest' or another role configured by the administrator." (Page 42, 802.1X Role Assignment Section)
:
HPE Aruba Networking AOS-8 8.11 User Guide, Role Assignment Section, Page 305.
HPE Aruba Networking Wireless Security Guide, 802.1X Role Assignment Section, Page 42.

Question 72

What is one way that WPA3-PerSonal enhances security when compared to WPA2-Personal?

A.WPA3-Personal is more complicated to deploy because it requires a backend authentication server
B.WPA3-Personai prevents eavesdropping on other users' wireless traffic by a user who knows the passphrase for the WLAN.
C.WPA3-Personai is more resistant to passphrase cracking Because it requires passphrases to be at least 12 characters
D.WPA3-Perscn3i is more secure against password leaking Because all users nave their own username and password

Question 73

What is a vulnerability of an unauthenticated Dime-Heliman exchange?

A.A hacker can replace the public values exchanged by the legitimate peers and launch an MITM attack.
B.A brute force attack can relatively quickly derive Diffie-Hellman private values if they are able to obtain public values
C.Diffie-Hellman with elliptic curve values is no longer considered secure in modem networks, based on NIST recommendations.
D.Participants must agree on a passphrase in advance, which can limit the usefulness of Diffie- Hell man in practical contexts.

Question 74

The monitoring admin has asked you to set up an AOS-CX switch to meet these criteria:
Send logs to a SIEM Syslog server at 10.4.13.15 at the standard TCP port (514) Send a log for all events at the "warning" level or above; do not send logs with a lower level than "warning" The switch did not have any "logging" configuration on it. You then entered this command:
AOS-CX(config)# logging 10.4.13.15 tcp vrf default
What should you do to finish configuring to the requirements?

A.Specify the "warning" severity level for the logging server.
B.Add logging categories at the global level.
C.Ask for the Syslog password and configure it on the switch.
D.Configure logging as a debug destination.

Correct Answer: A

The task is to configure an AOS-CX switch to send logs to a SIEM Syslog server at IP address 10.4.13.15 using TCP port 514, with logs for events at the "warning" severity level or above (i.e., warning, error, critical, alert, emergency). The initial command entered is:
AOS-CX(config)# logging 10.4.13.15 tcp vrf default
This command configures the switch to send logs to the Syslog server at 10.4.13.15 using TCP (port 514 is the default for TCP Syslog unless specified otherwise) and the default VRF. However, this command alone does not specify the severity level of the logs to be sent, which is a requirement of the task.
Severity Level Configuration: AOS-CX switches allow you to specify the severity level for logs sent to a Syslog server. The severity levels, in increasing order of severity, are: debug, informational, notice, warning, error, critical, alert, and emergency. The requirement is to send logs at the "warning" level or above, meaning warning, error, critical, alert, and emergency logs should be sent, but debug, informational, and notice logs should not.
Option A, "Specify the 'warning' severity level for the logging server," is correct. To meet the requirement, you need to add the severity level to the logging configuration for the specific Syslog server. The command to do this is:
AOS-CX(config)# logging 10.4.13.15 severity warning
This command ensures that only logs with a severity of warning or higher are sent to the Syslog server at 10.4.13.15. Since the initial command already specified TCP and the default VRF, this additional command completes the configuration.
Option B, "Add logging categories at the global level," is incorrect. Logging categories (e.g., system, security, network) are used to filter logs based on the type of event, not the severity level. The requirement is about severity ("warning" or above), not specific categories, so this step is not necessary to meet the stated criteria.
Option C, "Ask for the Syslog password and configure it on the switch," is incorrect. Syslog servers typically do not require a password for receiving logs, and AOS-CX switches do not have a configuration option to specify a Syslog password. Authentication or encryption for Syslog (e.g., using TLS) is not mentioned in the requirements.
Option D, "Configure logging as a debug destination," is incorrect. Configuring a debug destination (e.g., using the debug command) is used to send debug-level logs to a destination (e.g., console, buffer, or Syslog), but the requirement is to send logs at the "warning" level or above, not debug-level logs. Additionally, the logging command already specifies the Syslog server as the destination.
The HPE Aruba Networking AOS-CX 10.12 System Management Guide states:
"To configure a Syslog server on an AOS-CX switch, use the logging <ip-address> [tcp | udp] [vrf <vrf-name>] command to specify the server's IP address, protocol, and VRF. To filter logs by severity, add the severity <level> option to the logging command. For example, logging 10.4.13.15 tcp severity warning sends logs with a severity of warning or higher (warning, error, critical, alert, emergency) to the Syslog server at 10.4.13.15 using TCP. The default port for TCP Syslog is 514." (Page 89, Syslog Configuration Section) Additionally, the guide notes:
"Severity levels for logging on AOS-CX switches are, in increasing order: debug, informational, notice, warning, error, critical, alert, emergency. Specifying a severity level of 'warning' ensures that only logs at that level or higher are sent to the configured destination." (Page 90, Logging Severity Levels Section)
:
HPE Aruba Networking AOS-CX 10.12 System Management Guide, Syslog Configuration Section, Page 89.
HPE Aruba Networking AOS-CX 10.12 System Management Guide, Logging Severity Levels Section, Page 90.

Question 75

What are the roles of 802.1X authenticators and authentication servers?

A.The authenticator stores the user account database, while the server stores access policies.
B.The authenticator supports only EAP, while the authentication server supports only RADIUS.
C.The authenticator is a RADIUS client and the authentication server is a RADIUS server.
D.The authenticator makes access decisions and the server communicates them to the supplicant.

Question 71

Question 72

Question 73

Question 74

Question 75

Download PDF File