Question # 1
| A company is implementing a client-to-site VPN based on tunnel-mode IPsec.
Which devices are responsible for the IPsec encapsulation? | | A. Gateways at the remote clients' locations and devices accessed by the clients at the
main site | | B. The remote clients and devices accessed by the clients at the main site
| | C. The remote clients and a gateway at the main site
| | D. Gateways at the remote clients' locations and a gateway at the main site |
C. The remote clients and a gateway at the main site
Explanation: In a client-to-site VPN based on tunnel-mode IPsec, the remote clients and a
gateway at the main site are responsible for the IPsec encapsulation. The remote clients
initiate the VPN connection and encapsulate their traffic in IPsec, which is then
decapsulated by the gateway at the main site.
Question # 2
| What correctly describes an HPE Aruba Networking AP's Device (TPM) certificate? | | A. It is signed by an HPE Aruba Networking CA and is trusted by many HPE Aruba
Networking solutions. | | B. It works well as a captive portal certificate for guest SSIDs. | | C. It is a self-signed certificate that should not be used in production. | | D. It is installed on APs after they connect to and are provisioned by HPE Aruba
Networking Central. |
A. It is signed by an HPE Aruba Networking CA and is trusted by many HPE Aruba
Networking solutions.
An HPE Aruba Networking AP's Device (TPM) certificate is signed by an HPE Aruba Networking Certificate Authority (CA) and is trusted by many HPE Aruba Networking solutions. This certificate is used for secure communications and device authentication within the Aruba network ecosystem.
1. CA-Signed Certificate: The Device (TPM) certificate is signed by a trusted Aruba CA,
ensuring its authenticity and integrity.
2. Trust Across Solutions: Because it is signed by an Aruba CA, it is recognized and trusted
by various Aruba solutions, facilitating secure interactions and communications.
3. Security: Using a CA-signed certificate enhances the security of the network by
preventing unauthorized access and ensuring that communications are secure.
Reference:
Aruba's documentation on AP certificates and security protocols outlines the use and trust relationships of Device (TPM) certificates within the Aruba network infrastructure.
Question # 3
| A company has HPE Aruba Networking APs (AOS-10), which authenticate clients to HPE Aruba Networking ClearPass Policy Manager (CPPM). CPPM is set up
to receive a variety of information about clients' profile and posture. New information can mean that CPPM should change a client's enforcement profile.
What should you set up on the APs to help the solution function correctly? | | A. In the security settings, configure dynamic denylisting. | | B. In the RADIUS server settings for CPPM, enable Dynamic Authorization. | | C. In the WLAN profiles, enable interim RADIUS accounting. | | D. In the RADIUS server settings for CPPM, enable querying the authentication status. |
B. In the RADIUS server settings for CPPM, enable Dynamic Authorization.
Explanation:
To ensure that HPE Aruba Networking APs (AOS-10) properly interact with HPE Aruba Networking ClearPass Policy Manager (CPPM) and dynamically update a client's enforcement profile based on new profile and posture information, you should enable Dynamic Authorization in the RADIUSserver settings for CPPM. This allows ClearPass to send Change of Authorization (CoA) requests to the APs, prompting them to reapply the appropriate enforcement profiles based on updated information.
1.Dynamic Authorization: Enabling this feature allows ClearPass to dynamically push changes to the APs whenever there is new relevant information about a client's profile or posture.
2.Change of Authorization (CoA): This mechanism ensures that clients are assigned the correct enforcement profiles in real-time, based on the latest data.
3.Enhanced Policy Enforcement: This setup helps in maintaining accurate and up-to-date policy enforcement for clients on the network.
[Reference: ClearPass and AOS-10 documentation on RADIUS server settings and dynamic authorization explain the process and benefits of enabling Dynamic Authorization for real-time policy updates., , ]
Question # 4
You have downloaded a packet capture that you generated on HPE Aruba Networking
Central. When you open the capture in Wireshark, you see the output shown in the
exhibit.
What should you do in Wireshark so that you can better interpret the packets? | | A. Choose to decode UDP port 5555 packets as ARUBA_ERM and set the Aruba ERM
Type to 0.
| | B. Edit preferences for IEEE 802.11 and chose to ignore the Protection bit with IV.
| | C. Apply the following display filter: wlan.fc.type == 1.
| | D. Edit the Enabled Protocols and make sure that 802.11, GRE, and Aruba_ERM are
enabled. |
A. Choose to decode UDP port 5555 packets as ARUBA_ERM and set the Aruba ERM
Type to 0.
Explanation: To better interpret the packets shown in the Wireshark capture, you should
choose to decode UDP port 5555 packets as ARUBA_ERM and set the Aruba ERM Type
to 0. This configuration will allow Wireshark to properly decode and display the Aruba specific encapsulated remote mirroring (ERM) packets, providing a clearer understanding
of the traffic.
1.Decoding Protocols: Selecting the correct protocol decoding in Wireshark ensures that
the captured packets are interpreted correctly, displaying the relevant information.
2.Aruba ERM: The packets in the capture are likely encapsulated remote mirroring (ERM)
packets specific to Aruba, which require proper decoding settings in Wireshark.
3.Clear Interpretation: By setting the Aruba ERM Type to 0 and decoding the packets as
ARUBA_ERM, you can view the encapsulated data accurately.
Question # 5
A company issues user certificates to domain computers using its Windows CA and the default user certificate template. You have set up HPE Aruba Networking ClearPass Policy Manager (CPPM) to authenticate 802.1X clients with those certificates.
However, during tests, you receive an error that authorization has failed because the usernames do not exist in the authentication source.
What is one way to fix this issue and enable clients to successfully authenticate with
certificates?
| | A. Configure rules to strip the domain name from the username. | | B. Change the authentication method list to include both PEAP MSCHAPv2 and EAP-TLS. | | C. Add the ClearPass Onboard local repository to the authentication source list. | | D. Remove EAP-TLS from the authentication method list and add TEAP there instead |
A. Configure rules to strip the domain name from the username.
To fix the issue where authorization fails because the usernames do not exist in the authentication source, you can configure rules in HPE Aruba Networking ClearPass Policy Manager (CPPM) to strip the domain name from the username. When certificates are issued by a Windows CA, the username in the certificate often includes the domain (e.g., user@domain.com). ClearPass might not be able to find this format in the authentication source. By stripping the domain name, you ensure that ClearPass searches for just the username (e.g., user) in the authentication source, allowing successful authentication.
Reference:
ClearPass configuration guides and documentation on certificate-based authentication detail the process of modifying and normalizing usernames to ensure successful authentication against authentication sources.
Question # 6
(Note that the HPE Aruba Networking Central interface shown here might look slightly
different from what you see in your HPE Aruba Networking Central
interface as versions change; however, similar concepts continue to apply.)
An HPE Aruba Networking 9x00 gateway is part of an HPE Aruba Networking Central
group that has the settings shown in the exhibit. What would cause the
gateway to drop traffic as part of its IDPS settings? | | A. Its site-to-site VPN connections failing
| | B. Traffic matching a rule in the active ruleset
| | C. Its IDPS engine failing
| | D. Traffic showing anomalous behavior |
B. Traffic matching a rule in the active ruleset
Explanation: In the exhibit, the HPE Aruba Networking Central settings for the 9x00
gateway show that traffic inspection is enabled, and the gateway is set to operate in IDS
(Intrusion Detection System) mode with the fail strategy set to "Block". This configuration
means that the gateway will drop traffic if it matches a rule in the active ruleset.
1.Active Ruleset: The ruleset version 9861 is active, and the gateway is configured to
automatically update the ruleset daily.
2.Traffic Matching Rules: When traffic matches a rule in the active ruleset, it is flagged as
suspicious or malicious.
3.Block Mode: Since the fail strategy is set to "Block", any traffic that matches a rule in the
active ruleset will be dropped to prevent potential threats.
Question # 7
| A company uses HPE Aruba Networking ClearPass Device Insight (CPDI) (the standalone
application option). In the details for a generic device cluster, you see a recommendation for "Windows 8/10" with 70% accuracy.
What does this mean? | | A. CPDI has detected that these devices match about 70% of the system rule for defining
"Windows 8/10" devices. | | B. CPDI has matched these devices against several, conflicting system rules. 70% of those
rules are for "Windows 8/10" devices. | | C. CPDI has grouped this cluster with similar classified devices. 70% of those classified
devices are "Windows 8/10." | | D. CPDI has used MAC OUI to group these devices together. The average device's MAC
address matches 70% of the "Windows 8/10" OUI. |
A. CPDI has detected that these devices match about 70% of the system rule for defining
"Windows 8/10" devices.
Explanation:
When HPE Aruba Networking ClearPass Device Insight (CPDI) shows a recommendation
for "Windows 8/10" with 70% accuracy for a generic device cluster, it means that CPDI has
detected that these devices match about 70% of the system rule criteria for defining
"Windows 8/10" devices. This percentage indicates the confidence level based on the
observed characteristics and behavior of the devices, helping administrators understand
the likelihood that these devices are indeed running Windows 8 or 10.
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