HP HPE2-W09 Online Practice Questions and Exam Preparation

HP HPE2-W09 Online Questions & Answers

• Question 1:

  Does this correctly describe NetEdit's notification capabilities?

  Solution: NetEdit notifies admins of errors using Its Internal email server.

  A. Yes
  B. No
  B. No

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  Explanation/Reference:

  NetEdit is a network management tool that allows you to configure, monitor, and troubleshoot ArubaOS-CX switches. NetEdit can send notifications of changes in network conditions to other services, such as email, using methods that define the service type and credentials. However, NetEdit does not use its internal email server to send notifications. NetEdit requires an external SMTP server to send email notifications, and the SMTP server address, port, username, and password must be configured in the email method1. Therefore, this does not correctly describe NetEdit's notification capabilities.

• Question 2:

  Is this a use case for deploying Ethernet Ring Protection Switching (ERPS)?

  Solution: extending Layer 2 communications between data centers that connect over Layer 3 MPLS links

  A. Yes
  B. No
  B. No

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  Explanation/Reference:

  Extending Layer 2 communications between data centers that connect over Layer 3 MPLS links is not a use case for deploying Ethernet Ring Protection Switching (ERPS). ERPS is a feature that provides loop prevention and fast convergence for Layer 2 networks that use ring topologies. ERPS does not support extending Layer 2 communications over Layer 3 networks such as MPLS1.

• Question 3:

  Is this a way that Virtual Switching Extension (VSX) differs from Virtual Switching Framework (VSF)?

  Solution: VSX is recommended for the access layer of data centers and campuses while VSF is recommended for the core.

  A. Yes
  B. No
  B. No

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  Explanation/Reference:

  VSX is not recommended for the access layer of data centers and campuses while VSF is recommended for the core. VSX and VSF are both high availability solutions that provide redundancy and load balancing across a pair of switches1. However, VSX is recommended for the core and aggregation layers of data centers and campuses, while VSF is recommended for the access layer of campuses1. The statement is false because it reverses the recommended roles of VSX and VSF.

• Question 4:

  Is this a use case for disabling split-recovery mode on ArubaOS-CX switches in a Virtual Switching Extension (VSX) fabric?

  Solution: You are not concerned about split brain Issues in your environment, so you want the secondary member to keep its links up if the ISL falls.

  A. Yes
  B. No
  A. Yes

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  Explanation/Reference:

  You are not concerned about split brain issues in your environment, so you want the secondary member to keep its links up if the ISL fails is a use case for disabling split-recovery mode on ArubaOS-CX switches in a Virtual Switching Extension (VSX) fabric. VSX is a feature that provides active-active forwarding and redundancy for ArubaOS-CX switches. The ISL is the inter-switch link that connects two VSX nodes and carries data traffic. The split-recovery mode is a feature that prevents split-brain scenarios when both VSX nodes lose connectivity with each other but remain up. When split-recovery mode is disabled, if the ISL fails but both VSX nodes remain up,

• Question 5:

  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
  B. No

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  Explanation/Reference:

  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.

• Question 6:

  You are configuring Ethernet Ring Protection Switching (ERPS) on an ArubaOS-CX switch. Is this a guideline for configuring timers?

  Solution: The wait to restore timer (WTR) Is set in units of minutes; you can set it to prevent frequent topology changes due to a link going up and down.

  A. Yes
  B. No
  A. Yes

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  Explanation/Reference:

  The wait to restore timer (WTR) Is set in units of minutes; you can set it to prevent frequent topology changes due to a link going up and down is a guideline for configuring timers for Ethernet Ring Protection Switching (ERPS) on an ArubaOS-CX switch. The WTR timer is set in units of minutes, and it defines how long a node must wait before restoring traffic on a previously failed link that has recovered1.

• Question 7:

  You want to use NetEdit to configure an AtubaOS-CX switch.

  Is this a minimum requirement for setting up communications between the switch and NetEdit?

  Solution: Make sure that the SSH server is enabled.

  A. Yes
  B. No
  A. Yes

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  Explanation/Reference:

  The solution is correct because making sure that the SSH server is enabled is a minimum requirement for setting up communications between the switch and NetEdit. NetEdit uses SSH to establish a secure connection to the switch and execute commands on it. Therefore, making sure that the SSH server is enabled is necessary for setting up communications between the switch and NetEdit.

• Question 8:

  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. Yes
  B. No
  A. Yes

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  Explanation/Reference:

  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.

• Question 9:

  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 reduce the amount of traffic sent over the ISL between Switch-1 and Switch-2. enable Equal Cost Multi Path (ECMP) on both Switch-1 and Switch-2.

  A. Yes
  B. No
  B. No

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  Explanation/Reference:

  To reduce the amount of traffic sent over the ISL between Switch-1 and Switch-2, enable Equal Cost Multi Path (ECMP) on both Switch-1 and Switch-2 is not a correct explanation of how to control how core-to-access traffic is forwarded. Switch-1, Switch-2, and the router run OSPF on LAG 100, which is a Layer 3 LAG. ECMP is a feature that allows a router to load balance traffic destined to some network that is reachable through multiple equal cost route nexthops. Enabling ECMP on Switch-1 and Switch-2 would not reduce the amount of traffic sent over the ISL, but rather increase it by sending traffic over both links instead of one. A better way to reduce the amount of traffic sent over the ISL would be to enable active forwarding on LAG 100 on both Switch-1 and Switch-2, which would make one link active and one link standby for each direction of traffic 1.

• Question 10:

  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 1, Instance 1:

  control VLAN: 51 protected VLANs: 51-100 Ring 1, Instance 2:

  control VLAN: 51 protected VLANs: 101-150 Ring 2, Instance 1: control VLAN: 181 protected VLANs: 181-200 Ring 2, Instance 2: control VLAN: 181 protected VLANs: 201-220

  A. Yes
  B. No
  B. No

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  Explanation/Reference:

  ERPS is a feature of ArubaOS-CX that prevents loops at layer 2 on ring networks1. ERPS uses a protocol called Ring Auto Protection Switching (RAPS) to detect link failures and perform fast traffic switchover1. ERPS supports multiple rings and multiple instances per ring1. Each instance has a control VLAN and one or more protected VLANs1 . The control VLAN carries the RAPS PDUs and must be unique per ring1. The protected VLANs are the user traffic VLANs that are protected by ERPS and must be unique per instance1. Based on the exhibit, the design for the control and protected VLANs on the VSX fabric 1 switches is not valid. The control VLAN 51 is used for both instances 1 and 2 on ring 1, which violates the rule that the control VLAN must be unique per ring1. The protected VLANs 51-100 and 101-150 are also overlapping with the control VLAN 51, which violates the rule that the protected VLANs must be unique per instance1. Therefore, this is not a valid design for the control and protected VLANs on the VSX fabric 1 switches, and the correct answer is no. For more information on ERPS and VLANs, refer to the Aruba Data Center Network Specialist (ADCNS) certification datasheet2 and the ERPS Guide for your switch model1.