Question 1

What are two advantages of splitting a larger OSPF area into a number of smaller areas? (Select two )

Accepted Answer

B, D

Explanation: Splitting a large OSPF domain into multiple smaller areas is a fundamental design principle for scalability. This hierarchical approach contains routing information within an area. When a network topology change occurs, the resulting Link-State Advertisement (LSA) flooding and the intensive Shortest Path First (SPF) algorithm recalculation are confined to the routers within that specific area. This localization prevents instability in one area from affecting others. Consequently, routers maintain smaller Link-State Databases (LSDBs) and routing tables, which significantly reduces the CPU and memory resources required for SPF computations, thereby lowering processing overhead.

Question 2

Your Director of Security asks you to assign AOS-CX switch management roles to new employees
based on their specific job requirements After the configuration was complete, it was noted that a
user assigned with the administrators role did not have the appropriate level of access on the switch.
The user was not limited to viewing nonsensitive configuration information and a level of 1 was not
assigned to their role Which default management role should have been assigned for the user?

Accepted Answer

B

Explanation: The question requires identifying the appropriate default management role for a user needing more than minimal read-only access but less than full administrative rights. In ArubaOS-CX, there are three pre-defined default roles: administrators, operators, and auditors. The administrators role was deemed inappropriate, implying the user needed fewer privileges. The operators role grants access to all show commands, allowing full visibility of the switch configuration and operational state, which aligns with the requirement of not being "limited to viewing nonsensitive configuration information." This role is the standard choice for monitoring and initial troubleshooting without permitting configuration changes. The other options listed are not default roles in AOS-CX.

Question 3

What are the requirements to ensure that WMM is working effectively'? (Select two)

Accepted Answer

A, C

Explanation: Wi-Fi Multimedia (WMM) is a Wi-Fi Alliance certification program based on the IEEE 802.11e standard, designed to provide Quality of Service (QoS) on wireless networks. For WMM to function effectively, it requires end-to-end support. This means both the network infrastructure, specifically the Access Point (AP), and the client device must be WMM-certified and have the feature enabled. The client's operating system or application must also mark traffic into the appropriate WMM Access Categories (Voice, Video, Best Effort, Background). If either the AP or the client does not support WMM, the connection will revert to standard, non-prioritized data transmission.

Question 4

You need to have different routing-table requirements with Aruba CX 6300 VSF configuration
Assuming the correct layer-2 VLAN already exists how would you create a new OSPF configuration for
a separate routing table?

Accepted Answer

B

Explanation: To achieve separate routing tables on Aruba CX switches, Virtual Routing and Forwarding (VRF) instances are used. Each VRF maintains an independent routing table. To enable OSPF for a specific VRF, a new OSPF process must be created and explicitly associated with that VRF. The command router ospf vrf instantiates a new OSPF process that operates exclusively within the context of the named VRF, populating its unique routing table. This isolates its routing information from the default routing table and other VRFs.

Question 5

You need to ensure that voice traffic sent through an ArubaOS-CX switch arrives with minimal latency What is the best scheduling technology to use for this task?

Accepted Answer

A

Explanation: Strict queuing, also known as Strict Priority (SP) queuing, is the most effective scheduling method for minimizing latency for delay-sensitive traffic like voice. This algorithm services the highest-priority queue exclusively until it is empty before servicing any lower-priority queues. By placing voice traffic in the highest-priority queue, the switch ensures these packets are transmitted with the least possible delay, as they are not required to wait for any other traffic. This makes it the ideal choice for real-time applications where minimizing latency is the primary objective.

Question 6

You are doing tests in your lab and with the following equipment specifications
• AP1 has a radio that generates a 10 dBm signal
• AP2 has a radio that generates a 11 dBm signal
• AP1 has an antenna with a gain of 9 dBi
• AP2 has an antenna with a gain of 12 dBi.
• The antenna cable for AP1 has a 2 dB loss
• The antenna cable for AP2 has a 3 dB loss
What would be the calculated Equivalent Isotropic Radiated Power (EIRP) for APT?

Accepted Answer

C

Explanation: Equivalent Isotropic Radiated Power (EIRP) is the total power radiated from a theoretical isotropic antenna. It is calculated by adding the transmitter power to the antenna gain and subtracting any signal loss that occurs in the transmission line (e.g., antenna cable). The formula is: EIRP = Transmitter Power (dBm) + Antenna Gain (dBi) – Cable Loss (dB) For AP1, the values are: Transmitter Power = 10 dBm Antenna Gain = 9 dBi Cable Loss = 2 dB Calculation: EIRP = 10 dBm + 9 dBi - 2 dB = 17 dBm.

Question 7

With the Aruba CX switch configuration, what is the first-hop protocol feature that is used for VSX L3 gateway as per Aruba recommendation?

Accepted Answer

A

Explanation: Active Gateway is the recommended and purpose-built first-hop redundancy protocol (FHRP) for Aruba CX switches operating in a VSX (Virtual Switching Extension) environment. It enables both VSX switches to simultaneously process and route traffic for a given VLAN (SVI), creating a true active-active L3 gateway. This is achieved by configuring a shared virtual IP address and a common virtual MAC address on the SVI of both switches. This design eliminates suboptimal traffic paths inherent in traditional active-standby protocols like VRRP.

Question 8

In AOS 10. which session-based ACL below will only allow ping from any wired station to wireless
clients but will not allow ping from wireless clients to wired stations"? The wired host ingress traffic
arrives on a trusted port.

Accepted Answer

B

Explanation: This session ACL is applied to wireless clients. The alias user represents the wireless client's IP address. In ArubaOS, ACL rules are processed sequentially from top to bottom. The goal is to allow ICMP (ping) from a wired source (any) to the wireless client (user) but deny ICMP initiated by the wireless client (user) to any wired destination (any). The correct ACL structure is: 1. user any svc-icmp deny: This first rule explicitly denies any ICMP traffic originating from the wireless client (user) to any destination. This satisfies the requirement to block pings from wireless to wired. 2. any any svc-icmp permit: Any ICMP traffic that does not match the first rule is processed by this second rule. A ping from a wired host (any) to the wireless client (user) will not match the first rule and will be permitted by this rule. Because the firewall is stateful, the return ICMP echo-reply for the allowed session is automatically permitted.

Question 9

You must ensure the HPEAruba network you are configuring for a client is capable of plug-and-play provisioning of access points. What enables this capability?

Accepted Answer

B

Explanation: LLDP-MED (Link Layer Discovery Protocol - Media Endpoint Discovery) enables plug-and-play provisioning. It is an extension to LLDP that allows network switches to automatically provide configuration information to connected endpoints, such as access points (APs) and VoIP phones. The switch can advertise network policies, including the correct management VLAN ID, Power over Ethernet (PoE) levels, and Quality of Service (QoS) priorities. The AP uses this information to configure itself, join the correct network segment, and subsequently discover its mobility controller, streamlining the deployment process without manual intervention.

Question 10

DRAG DROP Select the Aruba stacking technology matching each option (Options may be used more than once or not at all.) https://kxbjsyuhceggsyvxdkof.supabase.co/storage/v1/object/public/file-images/HP_HPE7-A01/page_49_img_1.jpg

Accepted Answer

Explanation: VSF (Virtual Switching Framework) is a front-plane stacking technology used primarily in the access and aggregation layers (e.g., Aruba CX 6300 series). Stack Size: It supports stacking up to 10 member switches (specifically on the CX 6300). Bandwidth: The CX 6300 allows the use of SFP56 ports for VSF links. These ports support speeds up to 50G individually. With up to 4 ports configured for stacking, the maximum aggregate stacking bandwidth is 200 Gbps (unidirectional) or quoted as 400 Gbps bidirectional in some marketing, but the "200G" and "50G" figures specifically define the VSF limits in this context. VSX (Virtual Switching Extension) is a high-availability clustering technology used in the core and data center (e.g., Aruba CX 6400, 8325, 9300 ). Cluster Size: VSX always pairs exactly two devices (peers) to form a cluster with synchronized control planes. Bandwidth: VSX uses standard Ethernet links for the Inter-Switch Link (ISL). On high-end platforms like the Aruba CX 9300 , which features native 400G ports, an individual ISL link can operate at 400G .

Question 11

DRAG DROP What is the order of operations tor Key Management service for a wireless client roaming from AP1 to AP2? https://kxbjsyuhceggsyvxdkof.supabase.co/storage/v1/object/public/file-images/HP_HPE7-A01/page_36_img_2.jpg

Accepted Answer

Explanation: The process follows the standard Predictive Roaming or Key Management Service (KMS) workflow in a controller-based (e.g., ArubaOS 8 Mobility Conductor) environment: Association/Authentication: The process initiates when the client successfully connects and authenticates with the first access point (AP1), deriving the initial Pairwise Master Key (PMK). Caching: The centralized KMS receives and caches this PMK and client state to manage the session. Neighbor Identification: To prepare for roaming, the KMS determines the potential roaming targets by retrieving the neighbor AP list for AP1. Key Generation: The system proactively generates the required keys (e.g., PMK-R1s in 802.11r or OKC keys) specifically for those identified neighbor APs. Distribution: Finally, the keys and client context (VLAN, User Role) are shared/pushed to the target neighbor APs, allowing the client to roam to them seamlessly without full re-authentication.

Question 12

DRAG DROP Match the appropriate QoS concept with its definition. (Options may be used more than once or not at all.) https://kxbjsyuhceggsyvxdkof.supabase.co/storage/v1/object/public/file-images/HP_HPE7-A01/page_63_img_1.jpg

Accepted Answer

Explanation: Class of Service (CoS) operates at Layer 2, utilizing the 3-bit Priority Code Point (PCP) field within the 802.1Q Ethernet header to define 8 priority levels (0–7). Differentiated Services (DiffServ) functions at Layer 3. It re-purposes the ToS byte in the IPv4 header (or Traffic Class in IPv6) to use the 6-bit Differentiated Services Code Point (DSCP), allowing for 2^6 = 64 distinct traffic classifications. Best Effort Service is the default behavior where no QoS mechanisms are applied. Network devices forward packets in the order they arrive (First-In, First-Out) without guarantees for bandwidth or latency. WMM (Wi-Fi Multimedia) is a subset of the IEEE 802.11e standard adapted by the Wi-Fi Alliance. It prioritizes wireless traffic into four Access Categories (AC): Voice, Video, Best Effort, and Background.

Question 13

DRAG DROP Match the terms below to their characteristics (Options may be used more than once or not at all.) https://kxbjsyuhceggsyvxdkof.supabase.co/storage/v1/object/public/file-images/HP_HPE7-A01/page_51_img_1.jpg

Accepted Answer

Explanation: Unicast is a one-to-one transmission between a specific source and a specific destination IP (e.g., 10.1.3.7 to 10.13.4.2). Multicast enables efficient one-to-many or many-to-many communication where traffic is sent to a specific group of interested receivers (class D addresses), allowing multiple senders and recipients. IP Directed Broadcast targets all hosts on a specific remote subnet; the packet is routed as unicast until it reaches the destination router, which then broadcasts it locally. Broadcast (specifically limited broadcast, 255.255.255.255) is sent to all network interface cards (NICs) on the same local Layer 2 segment as the sender and is not forwarded by routers.

Question 14

DRAG DROP List the firewall role derivation flow in the correct order https://kxbjsyuhceggsyvxdkof.supabase.co/storage/v1/object/public/file-images/HP_HPE7-A01/page_79_img_1.jpg

Accepted Answer

Explanation: The Aruba controller assigns user roles based on a specific hierarchy of precedence. The process flows from the base configuration to specific overrides: Initial role assigned: This is the starting point. When a user first associates with the SSID (before authentication completes), they are assigned the "Initial Role" configured in the AAA profile. Authentication default role: Upon successful authentication, the system applies the default role specified in the authentication profile (e.g., 802.1X or MAC authentication profile). This overrides the initial role. User derived role: The controller then checks for User Derivation Rules (UDRs) configured locally on the controller (based on attributes like SSID, VLAN, or MAC OUI). If a match is found, this role takes precedence over the authentication default role. Server derived role: Finally, if the authentication server (RADIUS) returns a Vendor Specific Attribute (VSA) specifying a role, this Server Derived Role takes the highest precedence and overrides all previous roles.

Question 15

DRAG DROP Match each PoE power class to Its corresponding 802.3 standard. (Options may he used more than once or not at all) https://kxbjsyuhceggsyvxdkof.supabase.co/storage/v1/object/public/file-images/HP_HPE7-A01/page_69_img_3.jpg

Accepted Answer

Explanation: IEEE 802.3af (PoE) , also known as Type 1, was the original standard defining power delivery over Ethernet. It supports a maximum power output of 15.4 W at the Power Sourcing Equipment (PSE), which encompasses Class 3 . IEEE 802.3at (PoE+) , or Type 2, increased the available power to 30 W at the PSE. This standard introduced Class 4 to handle the higher power requirements beyond the original 802.3af limits. IEEE 802.3bt (4-Pair PoE) introduced Type 3 and Type 4, utilizing all four pairs of the Ethernet cable. It supports Class 6 (providing up to 60 W at the PSE under Type 3) and Class 8 (providing up to 90 W at the PSE under Type 4).

Free HP HPE7-A01 Actual Exam Questions