Free Practice Questions for HP HPE7-A01 Exam

The best option to enhance security for the new IP cameras and scanners in this environment is C. MPSK provides for each device in the WLAN to have its own unique pre-shared key.

MPSK stands for Multi Pre-Shared Key, and it is a feature that allows different devices to connect to the same SSID with different pre-shared keys. This improves the security and scalability of the network, as each device can have its own key and role without requiring 802.1X authentication or an external policy engine. MPSK can be configured either locally on the AP or centrally on Aruba Central12.

The other options are incorrect because:

A. MPSK Local is a feature that allows the user to configure 24 PSKs per SSID locally on the device. These local PSKs would serve as an extension of the base MPSK functionality. However, MPSK Local is not suitable for this scenario, as it can only support up to 24 devices per SSID, while the client has 250 devices1.

B. Aruba ClearPass is a network access control solution that can perform 802.1X authentication and install certificates for devices. However, this option is not feasible for this scenario, as the new IP cameras and scanners do not support 802.1X authentication3.

D. MPSK Local will not allow the cameras to share a key and the scanners to share a different key. MPSK Local will assign a different key to each device, regardless of their type. Moreover, MPSK Local can only support up to 24 devices per SSID, while the client has 250 devices1.

The difference in the noise floor perceived by a client using a bonded 40 MHz wide channel as compared to an unbonded 20 MHz wide channel is 3 dB. The noise floor is the level of background noise in a given frequency band. When two adjacent channels are bonded, the noise floor increases by 3 dB because the bandwidth is doubled and more noise is captured. The other options are incorrect because they do not reflect the correct relationship between bandwidth and noise floor. References: https://www.arubanetworks.com/techdocs/ArubaOS_86_Web_Help/Content/arubaos-solutions/wlan-rf/rf-fundamentals.htm https://www.arubanetworks.com/techdocs/ArubaOS_86_Web_Help/Content/arubaos-solutions/wlan-rf/channel-bonding.htm

The required optimization is to use IEEE 802.3az Energy Efficient Ethernet (EEE) across the AP deployment. Aruba documentation states that 802.3az allows supported APs to consume less power during periods of low data activity, which directly matches the scenario of reducing nighttime energy consumption. Aruba Networking

However, Aruba explicitly documents that 802.3az is not supported on the AP-315 or the 330 Series, which includes the AP-335. Aruba Networking Consequently, those older AP-315 and AP-335 units must be replaced with models supporting EEE. The AP-515 belongs to a newer generation and does not fall within Aruba ' s documented EEE exclusions, so replacing the AP-515 is unnecessary.

After installing EEE-capable replacements, 802.3az should be enabled across the AP environment, allowing Ethernet links to reduce power usage during low-traffic periods.

IPM is not the primary mechanism for this requirement. Aruba describes Intelligent Power Monitoring as dynamically restricting AP functions when AP consumption approaches or exceeds its available power budget. It is primarily concerned with operating an AP within available PoE resources, rather than automatically exploiting nighttime Ethernet inactivity. Aruba Networking

Study Guide Topics: Energy Efficient Ethernet (802.3az), AP Ethernet Link Profiles, AP Power Optimization, Intelligent Power Monitoring (IPM), Campus WLAN Sustainability.

The reason is that ClearPass OnBoard is a tool that allows you to enroll Mac computers into a ClearPass Policy Manager site using an Apple MDM push certificate. This certificate can be obtained from Apple or from a third-party PKI provider.

Apple Configurator is a tool that allows you to configure and deploy Mac computers using a GPO. This tool can also be used to enroll Mac computers into a ClearPass Policy Manager site using an Apple MDM push certificate.

For switches to participate in the same Multiple Spanning Tree Protocol (MSTP) region, their MST region configuration must match. One of the critical parameters is the configuration revision number, configured in AOS-CX using:

spanning-tree config-revision < REVISION-NUMBER >

HPE Aruba Networking explicitly states that all switches within an MST region must have identical revision numbers. The revision number forms part of the MST region identity along with the configuration name and VLAN-to-instance mapping. Aruba Networking

This is essential for VLAN load balancing because MSTP allows different VLAN groups to be mapped to different MST instances. Each instance can then use a different spanning-tree topology/root, allowing otherwise blocked redundant links to forward traffic for other VLAN groups. Aruba ' s MSTP configuration example specifically demonstrates that changing the root for individual instances permits more effective load sharing across redundant links. Aruba Networking

The spanning-tree priority does not need to be identical; in fact, different instance priorities are deliberately used when different switches should become roots for different MST instances. Likewise, “root” and “secondary root” describe root-election behavior rather than an MST region parameter that must be identical across Access-1 and the other participating switches.

Therefore, among the choices, spanning-tree config-rev is the required identical configuration.

Study Guide Topics: MSTP, MST Regions, Configuration Revision, VLAN-to-MSTI Mapping, Root Bridge Selection, VLAN Load Balancing.

The correct mechanism is RADIUS Change of Authorization (CoA). ClearPass Policy Manager can dynamically alter or terminate an already authenticated network session by sending a RADIUS dynamic-authorization message to the network access device. Aruba defines dynamic authorization as the capability to modify a user ' s authorization while the session is active, including disconnecting the session. Aruba Networking

For guest accounts, ClearPass can associate an expiration time or permitted access duration with the account. When the configured expiration condition requires the guest to be logged out, ClearPass can issue a RADIUS Disconnect-Request to the NAS, such as an Aruba wireless controller or access infrastructure. Aruba ' s ClearPass Guest documentation specifically describes the Disable and logout behavior as disabling further authorization and using a RADIUS Disconnect-Request for matching active sessions. Aruba Networking Once disconnected, the client must go through the applicable authentication and authorization process again before network access can resume.

An Authorization Profile defines what access should be granted but does not itself provide the dynamic session-disconnect mechanism. Active Directory session timeout and Wi-Fi Sense do not fulfill this ClearPass enforcement function.

Study Guide Topics: ClearPass Policy Manager, AAA, Guest Access, RADIUS Dynamic Authorization, Change of Authorization (CoA), Disconnect-Request, Session Enforcement.

The statements that are true regarding Aruba NAE agents are A and C.

A. A single NAE script can be used by multiple NAE agents. This means that you can create different instances of the same script with different parameters or settings. For example, you can use the same script to monitor different VLANs or interfaces on the switch1.

C. NAE agents will never consume more than 10% of switch processor resources. This is a built-in safeguard that prevents the agents from affecting the switch performance or stability. If an agent exceeds the 10% limit, it will be automatically disabled and an alert will be generated2.

The other options are incorrect because:

B. NAE agents are not active at all times. They can be enabled or disabled by the user, either manually or based on a schedule. They can also be disabled automatically if they encounter an error or exceed the resource limit1.

D. NAE scripts do not need to be reviewed and signed by Aruba before being used. You can create your own custom scripts using Python and upload them to the switch or Aruba Central. You can also use the scripts provided by Aruba or other sources, as long as they are compatible with the switch firmware version1.

E. A single NAE agent cannot be used by multiple NAE scripts. An agent is an instance of a script that runs on the switch. Each agent can only run one script at a time1.

QoS stands for Quality of Service and is a mechanism that allows network devices to prioritize and differentiate traffic based on certain criteria, such as application type, source, destination, etc3. QoS involves identifying specific traffic for special treatment and applying policies and actions to improve its performance or meet certain service level agreements (SLAs)3. QoS can help network devices to manage congestion, delay, jitter, packet loss, bandwidth allocation, etc., for different types of traffic3. QoS can be implemented at various layers of the network stack and across different network domains. References: 3 https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/qos/configuration/15-mt/qos-15-mt-book/qos-overview.html