HPE2-W09問題集合格保証付きの合格できるHPE2-W09試験2023年更新
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HP HPE2-W09試験は、データセンターネットワーキングに関連する幅広いトピックをカバーしており、ArubaOS-CXスイッチとその機能、Aruba Virtual Switching Framework（VSF）、Aruba Network Analytics Engine（NAE）、およびAruba ClearPassについての知識が必要です。また、ネットワークセキュリティ、ルーティングプロトコル、およびネットワーク仮想化の知識も試験で問われます。試験に合格するには、これらのトピックに深い理解が必要です。
質問 # 25
Can you attach this type of ArubaOS-CX interface to a VRF?
Solution: A loopback interface
- A. Yes
- B. No
正解：B
解説：
A loopback interface can be attached to a VRF on an ArubaOS-CX switch. A loopback interface is a virtual interface that has an IP address assigned to it and is always up. A loopback interface can be attached to a VRF by using the vrf attach command under its configuration mode1.
質問 # 26
Refer to the exhibit.
The company wants AtubaOS-CX switches to provide VXLAN services for several VMs and servers, as shown in the exhibit. Hypervisors will not run VXLAN for this solution. Is this part of a valid configuration to meet the requirements?
Solution: Attach VNIs 5010 and 5020 to interface 1/1/3 on Switch-2.
- A. Yes
- B. No
正解：B
解説：
Attach VNIs 5010 and 5020 to interface 1/1/3 on Switch-2 is not part of a valid configuration to meet the requirements for providing VXLAN services for several VMs and servers using ArubaOS-CX switches. VNIs are virtual network identifiers that are used to identify VXLAN segments. A VNI can only be attached to a VLAN interface, not a physical interface, on an ArubaOS-CX switch1.
質問 # 27
Is this a use case for implementing Enhanced Transmission Selection (ETS) on an ArubaOS-CX switch?
Solution: to enable the switch to assign the correct priority and bandwidth to traffic that it transmits to servers
- A. No
- B. Yes
正解：B
解説：
Enhanced Transmission Selection (ETS) is a network scheduling algorithm that allows the switch to assign different priority and bandwidth values to different traffic classes1. This can be useful for transmitting traffic to servers that have different requirements for latency, jitter, or throughput. For example, ETS can prioritize voice or video traffic over data traffic, or allocate more bandwidth to backup or replication traffic. ETS is configured using the Data Center Bridging Exchange (DCBx) protocol, which advertises the configuration to peer devices2. Therefore, implementing ETS on an ArubaOS-CX switch is a valid use case for enabling the switch to assign the correct priority and bandwidth to traffic that it transmits to servers.
質問 # 28
Refer to the exhibit.
which shows the topology tot an Ethernet Ring Protection Switching (ERPS) solution.
Is this a valid design for the control and protected VLANs on the VSX fabric 1 switches?
Solution: Ring l, instance 1:
control VLAN: 1000 protected VLANs: 51-135 Ring 1, Instance 2:
control VLAN: 1000 protected VLANs: 136-220 Ring 2, Instance 1: control VLAN: 1001 protected VLANs: 181 -200 Ring 2, Instance 2: control VLAN: 1001 protected VLANs: 201 -220
- A. No
- B. Yes
正解：B
解説：
Ring l, instance 1: control VLAN: 1000 protected VLANs: 51-135 Ring l,Instance2: control VLAN: 1001 protected VLANs: 136-220 Ring 2, Instance l: control VLAN: 1002 protected VLANs: l8l -200 Ring 2, Instance2: control VLAN: l003 protected VLANs:201 -220 is a valid design for the control and protected VLANs on the VSX fabric l switches for an Ethernet Ring Protection Switching (ERPS) solution. The control VLANs are unique for each ring instance and do not overlap with any protected VLANs. The protected VLANs are also unique for each ring instance and do not overlap with any control VLANs2.
質問 # 29
Your task is to configure an EVPN solution for a dual-stack IPv4 and IPv6 protocol in the overlay networks. Is this statement about EVPN and IPv6 correct?
Solution: Different virtual MAC must be used for IPv4 and IPv6 Active Gateway.
- A. Yes
- B. No
正解：B
質問 # 30
Your customer is using Nutanix AHV and they need a network orchestration tool to simplify network provisioning. Is this operation supported when Aruba Fabric Composer (AFC) is integrated with Nutanix?
Solution: Automated provisioning of LAGs Between AHV and VSX
- A. No
- B. Yes
正解：B
解説：
Automated provisioning of LAGs between AHV and VSX is an operation supported when Aruba Fabric Composer (AFC) is integrated with Nutanix. AFC is a tool that provides automation and orchestration for managing data center networks composed of ArubaOS-CX switches. AFC can integrate with various data center software such as VMware vSphere, Nutanix AHV, Microsoft Hyper-V, etc. AFC can discover, monitor, and configure Nutanix AHV clusters and hosts using REST APIs. AFC can also automate the provisioning of LAGs between AHV and VSX by creating VSX LAGs or MC-LAGs on the ArubaOS-CX switches and configuring the corresponding LAGs on the AHV hosts1.
質問 # 31
Can you attach this type of ArubaOS-CX interface to a VRF?
Solution: A loopback interface
- A. No
- B. Yes
正解：B
質問 # 32
Is this a way that Virtual Switching Extension (VSX) differs from Virtual Switching Framework (VSF)?
Solution: VSX features a dual control plane while VSF features a single control plane.
- A. No
- B. Yes
正解：B
解説：
VSX features a dual control plane while VSF features a single control plane. VSX and VSF are both high availability solutions that provide redundancy and load balancing across a pair of switches1. However, VSX features a dual control plane, which means that each switch has its own independent configuration and state information1. VSF features a single control plane, which means that one switch acts as the commander and synchronizes the configuration and state information to the other switch1. The statement is true because it correctly describes the difference between VSX and VSF control planes.
質問 # 33
Refer to the exhibit.
The company wants AtubaOS-CX switches to provide VXLAN services for several VMs and servers, as shown in the exhibit. Hypervisors will not run VXLAN for this solution. Is this part of a valid configuration to meet the requirements?
Solution: Work with the server admins to assign a consistent VLAN for VMs 1 and 4. Assign interface 1/1/2 on Switch-1 to the same VLAN.
- A. Yes
- B. No
正解：B
質問 # 34
Does this correctly describe how the Virtual Switching Extension (VSX) fabric reacts to various component failure scenarios?
Solution: The ISL goes down, and after a few seconds, the keepalive link goes down too. Switch-1 and Switch-2 remains up.
The Split-recovery mode is enabled. In this case the secondary switch first shutdowns and then enables SVis.
- A. Yes
- B. No
正解：B
解説：
The Virtual Switching Extension (VSX) fabric is a high availability solution that provides industry-leading performance and simplicity for campus and data center networks1. When the ISL goes down, and after a few seconds, the keepalive link goes down too, the VSX fabric reacts differently depending on the split-recovery mode setting. If the split-recovery mode is enabled, the secondary switch shuts down all its SVIs and waits for the ISL to come back up2. If the split-recovery mode is disabled, both switches keep their SVIs up and continue to forward traffic2. Therefore, this does not correctly describe how the VSX fabric reacts to various component failure scenarios. Reference: https://www.arubanetworks.com/assets/tg/TB_VSX.pdf
質問 # 35
Refer to the exhibits.
Is this how the switch handles the traffic?
Solution: A frame with destination MAC address, 00:50:56:00:00:03 arrives with a VLAN 10 tag on 1/1//1 on Switch-1. Switch-1 switches the frame out interface 1/1/2 without VXLAN.
- A. Yes
- B. No
正解：B
解説：
VXLAN is a tunneling protocol that encapsulates layer 2 traffic over an IP network using VXLAN Network Identifiers (VNIs) to identify different layer 2 segments. VXLAN Tunnel Endpoints (VTEPs) are devices that perform the encapsulation and decapsulation of VXLAN packets. According to the exhibit, Switch-1 and Switch-2 are VTEPs that use VNI 10010 to map VLAN 10 traffic. Therefore, when Switch-1 receives a frame with destination MAC address 00:50:56:00:00:03 and VLAN 10 tag on interface 1/1/1, it should encapsulate the frame with a VXLAN header that contains VNI 10010 and send it as a unicast packet to Switch-2's loopback address (10.1.1.2) over the IP network1. Switch-1 should not switch the frame out interface 1/1/2 without VXLAN, as this would violate the VNI mapping and cause layer 2 loops. Therefore, this is not how the switch handles the traffic. https://networklessons.com/cisco/ccnp-encor-350-401/introduction-to-virtual-extensible-lan-vxlan
質問 # 36
Refer to the exhibit.
Switch-1, Switch-2, and the router run OSPF on LAG 100, which is a Layer 3 LAG. Does this correctly explain how to control how core-to-access traffic Is forwarded?
Solution: To force the router to use both links, ensure that active gateway is enabled on LAG 100 on both Switch-1 and Switch-2.
- A. Yes
- B. No
正解：B
解説：
The exhibit shows a network topology where Switch-1 and Switch-2 are part of a Virtual Switching Extension (VSX) fabric, and the router runs OSPF on LAG 100, which is a Layer 3 LAG. The question asks how to control how core-to-access traffic is forwarded, which means how the router chooses between the two links to Switch-1 and Switch-2. To force the router to use both links, ensuring that active gateway is enabled on LAG 100 on both Switch-1 and Switch-2 is not the correct solution. Active gateway is a feature that allows both VSX members to act as the default gateway for downstream devices, using a common virtual MAC address. Active gateway does not affect how upstream devices, such as the router, forward traffic to the VSX members1. To force the router to use both links, the correct solution is to configure equal-cost multi-path (ECMP) in OSPF on the router. ECMP is a feature that allows a router to load balance traffic across multiple paths with the same cost. ECMP can be configured using the maximum-paths command and specifying how many equal-cost paths the router should use2. Therefore, this does not correctly explain how to control how core-to-access traffic is forwarded.
質問 # 37
Is this something that NetEdit 2.0 does after it discovers a switch?
Solution: It enables the switch REST API Interface, if disabled.
- A. Yes
- B. No
正解：B
質問 # 38
You are using NetEdit to manage AruDaOS-CX switches. You want to deploy a standard config to the switches, but need the config to include a few device-specific settings such as hostname and IP address.
Is this what you should do?
Solution: Create a conformance validation test to deploy the standard part of the configuration.
- A. Yes
- B. No
正解：B
解説：
NetEdit is a network management tool that allows you to configure, monitor, and troubleshoot ArubaOS-CX switches. You can use NetEdit to deploy a standard config to the switches, but you need to use a different feature than conformance validation tests. Conformance validation tests are used to check if the switches comply with a predefined set of rules or best practices, and to generate reports or alerts if any deviations are found1. They are not used to deploy configurations. To deploy a standard config that includes device-specific settings, you should use templates. Templates are files that contain configuration commands with variables that can be replaced with device-specific values when applied to the switches1. Therefore, this is not what you should do.
質問 # 39
Your task is to configure an EVPN solution for a dual-stack IPv4 and IPv6 protocol in the overlay networks. Is this statement about EVPN and IPv6 correct?
Solution: IPv6 protocol can be encapsulated in the underlay network's IPv4 packets.
- A. Yes
- B. No
正解：B
解説：
IPv6 protocol cannot be encapsulated in the underlay network's IPv4 packets. EVPN is a protocol that provides layer 2 and layer 3 services over an IP network1. It uses VXLAN tunnels to encapsulate Ethernet frames in UDP packets and transport them across the underlay network1. The underlay network can use either IPv4 or IPv6 protocol, but it must match the protocol used by the VXLAN tunnels1. The statement is false because it implies that IPv6 protocol can be encapsulated in IPv4 packets, which is not possible.
質問 # 40
Your customer is using Nutanix AHV and they need a network orchestration tool to simplify network provisioning. Is this operation supported when Aruba Fabric Composer (AFC) is integrated with Nutanix?
Solution: Automated configuration of Layer 3 MP-BGP protocol on leaf switches
- A. Yes
- B. No
正解：B
解説：
Automated configuration of Layer 3 MP-BGP protocol on leaf switches is not an operation supported when Aruba Fabric Composer (AFC) is integrated with Nutanix. AFC is a tool that provides automation and orchestration for managing data center networks composed of ArubaOS-CX switches. AFC can integrate with various data center software such as VMware vSphere, Nutanix AHV, Microsoft Hyper-V, etc. AFC can discover, monitor, and configure Nutanix AHV clusters and hosts using REST APIs. However, AFC does not support the configuration of Layer 3 MP-BGP protocol on leaf switches, which is required for EVPN VXLAN networks. AFC only supports the configuration of Layer 2 VXLAN networks without EVPN1.
質問 # 41
Is this how you should position switches in the ArubaOS-CX portfolio for data center networks?
Solution: Deploy Aruba 83xx switches as core switches for very large three-tier data center networks.
- A. No
- B. Yes
正解：B
解説：
Deploying Aruba 83xx switches as core switches for very large three-tier data center networks is how you should position switches in the ArubaOS-CX portfolio for data center networks. The Aruba 83xx switches are designed for data center spine or core roles, and they provide high performance, scalability, and resiliency. They can support very large three-tier data center networks with up to 512 leaf switches using VSX2.
質問 # 42
Is this a rule for configuring schedule profiles on an ArubaOS-CX switch?
Solution: If the profile mixes strict priority scheduling with another scheduling algorithm, the strict priority queue must be the highest numbered queue.
- A. No
- B. Yes
正解：B
解説：
A schedule profile is a feature of ArubaOS-CX that determines the order and service of queues for transmission123. A schedule profile must be configured on every interface at all times23. The switch supports three scheduling algorithms: Guaranteed Minimum Bandwidth (GMB), Strict, and Strict EQS23. Strict scheduling gives absolute priority to a queue over other queues, regardless of the bandwidth allocation23. If the profile mixes strict priority scheduling with another scheduling algorithm, the strict priority queue must be the highest numbered queue23. Therefore, this is a rule for configuring schedule profiles on an ArubaOS-CX switch, and the correct answer is yes. For more information on schedule profiles and QoS, refer to the Aruba Data Center Network Specialist (ADCNS) certification datasheet1 and the QoS Guide for your switch model23.
質問 # 43
Is this part of a valid strategy for load sharing traffic across the links in an Ethernet Ring Protection Switching (ERPS) ring?
Solution: Implement Virtual Switching Extension (VSX) on pairs of ERPS switches at the same site. Then combine multiple links between two data centers into VSX LAGs (M-LAGs).
- A. Yes
- B. No
正解：B
解説：
Implement Virtual Switching Extension (VSX) on pairs of ERPS switches at the same site. Then combine multiple links between two data centers into VSX LAGs (MC-LAGs) is not part of a valid strategy for load sharing traffic across the links in an Ethernet Ring Protection Switching (ERPS) ring. ERPS is a feature that provides loop prevention and fast convergence for Layer 2 networks that use ring topologies. VSX is a feature that provides active-active forwarding and redundancy for ArubaOS-CX switches. VSX LAGs or MC-LAGs are LAGs that span across two VSX nodes and provide load balancing and resiliency. However, VSX LAGs or MC-LAGs are not supported by ERPS because they can create loops in the ring topology. A better way to load share traffic across the links in an ERPS ring would be to use link aggregation groups (LAGs) between two nodes in a ring as long as they are not multi-chassis LAGs (MC-LAGs)1.
質問 # 44
Refer to the exhibit.
You need to set up an ArubaOS-CX switch to implement Virtual Extensible LAN (VXLAN) WITHOUT Ethernet VPN (EVPN). The exhibit Indicates which servers should be part of the same VXLANs and the desired VNls for the VXLANs. Assume that the network is already configured to permit each ArubaOS-CX switch to reach each other switch's loopback interface.
Is this part of the process for setting up VXLAN to meet the requirements?
Solution: On Switch-1, create two VXLAN interfaces, one with ID 5010 and one with 1D 5020; both VXLAN interfaces should use 192.168.1.1 as the source IP address.
- A. No
- B. Yes
正解：B
解説：
VXLAN is a feature of ArubaOS-CX that provides layer 2 connectivity between networks across an IP network1. VXLAN uses a 24-bit identifier called VXLAN Network Identifier (VNI) to segment the layer 2 domain1. VXLAN also uses a tunnel endpoint (VTEP) to encapsulate and decapsulate VXLAN packets1. A VXLAN interface is a logical interface that represents a VNI and is associated with a source IP address and a VRF1. To set up VXLAN without EVPN, you need to create VXLAN interfaces on each switch and configure static VTEP peers1. Based on the exhibit, Switch-1 needs to create two VXLAN interfaces, one with ID 5010 and one with ID 5020, to match the VNIs of the servers connected to it. Both VXLAN interfaces should use 192.168.1.1 as the source IP address, which is the loopback interface of Switch-1. Therefore, this is part of the process for setting up VXLAN to meet the requirements, and the correct answer is yes. For more information on VXLAN and EVPN, refer to the Aruba Data Center Network Specialist (ADCNS) certification datasheet2 and the EVPN VXLAN Guide for your switch model1.
質問 # 45
Is this a way that Virtual Switching Extension (VSX) differs from Virtual Switching Framework (VSF)?
Solution: VSX permits admins to select which features to synchronize between members while VSF requires manual configuration of Identical features on each member of the VSF fabric.
- A. No
- B. Yes
正解：B
質問 # 46
Switch-1 and Switch-2 are AruDaOS-CX switches, which are part of a Virtual Switching Extension (VSX) fabric. Switch-2 is the primary member. Switch-2 experiences a power failure while Switch-1 remains up. Switch-2's power recovers, and Switch-2 reboots.
Is this one of the things that happens when Switch-2 finishes booting?
Solution: Switch-2 wails a period called the link-up delay before it enables Switched Virtual Interfaces (SVls) on its VSX LAGs.
- A. No
- B. Yes
正解：B
解説：
Switch-2 waits a period called the link-up delay before it enables Switched Virtual Interfaces (SVIs) on its VSX LAGs is a true statement about what happens when Switch-2 experiences a power failure while Switch-1 remains up and then recovers. Switch-1 and Switch-2 are ArubaOS-CX switches, which are part of a Virtual Switching Extension (VSX) fabric. VSX is a feature that provides active-active forwarding and redundancy for ArubaOS-CX switches. The link-up delay timer defines how long a VSX node waits before advertising link state changes to its peer node. This allows the node to synchronize its MAC forwarding, ARP, and routing tables with its peer node before sending or receiving traffic on the newly activated link1.
質問 # 47
Two ArubaOS-CX switches ate part of a Virtual Switching Extension (V5X) fabric. Is this a guideline for configuring the switches' link-up delay settings?
Solution: The link-up delay timer is only required when split-recovery is disabled.
- A. Yes
- B. No
正解：B
解説：
Virtual Switching Extension (VSX) is a high-availability technology that allows two ArubaOS-CX switches to operate as a single logical device. VSX link-up delay is a feature that delays bringing downstream VSX links up, following a VSX device reboot or an ISL flap. This prevents traffic blackholing or loops due to transient conditions. The link-up delay timer is not only required when split-recovery is disabled. Split-recovery is another feature that prevents traffic blackholing or loops when the ISL link fails and then recovers. Split-recovery works by disabling the secondary VSX member's downstream links until it synchronizes with the primary member. However, split-recovery does not cover all scenarios where traffic blackholing or loops can occur, such as when both VSX members reboot simultaneously or when the ISL flaps rapidly. Therefore, it is recommended to configure the link-up delay timer even when split-recovery is enabled1. Therefore, this is not a valid guideline for configuring the switches' link-up delay settings.
質問 # 48
Does this correctly describe the ArubaOS-CX architecture?
Solution: The ArubaOS-CX time-series database helps to support network analytics and troubleshooting.
- A. No
- B. Yes
正解：B
解説：
The ArubaOS-CX time-series database helps to support network analytics and troubleshooting is a correct description of the ArubaOS-CX architecture. The time-series database (TSDB) is a component of the ArubaOS-CX software that stores information about the switch's configuration, status, and performance over time. The TSDB helps to support network analytics and troubleshooting by providing historical data and trend analysis for various metrics1.
質問 # 49
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