HP HPE6-A86 Online Practice Questions and Exam Preparation

HP HPE6-A86 Online Questions & Answers

• Question 21:

  On a switched infrastructure using Spanning Tree, what entity defines the best path for traffic in an HPE Aruba Networking CX environment?

  A. Root bridge
  B. Designated bridge
  C. Alternative bridge
  D. Common bridge
  A. Root bridge

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  Explanation

  Spanning Tree calculates path cost toward the root bridge, and that root bridge is the reference point for selecting forwarding and blocking roles. Designated and alternate roles are derived from the root-path calculation rather than defining the overall best path by themselves.

• Question 22:

  A Windows PC is not able to browse the Internet.

  Based on the output, what could be the problem?

  

  A. The port has been error-disabled by STP.
  B. There is no VLAN tag configured on the PC.
  C. The wrong subnet mask has been configured.
  D. A static route must be configured on the PC.
  C. The wrong subnet mask has been configured.

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  Explanation

  An incorrect subnet mask can place the PC in the wrong IP subnet and prevent normal local gateway communication or Internet access. VLAN tags are not normally configured on an end-user PC access connection, and a host static route is not the first correction for a mask mismatch.

• Question 23:

  DRAG DROP

  Match the device stacking or clustering feature to the correct HPE Aruba Networking CX switch series when selecting a switch family for a use case where device failure needs to be protected by using HPE Aruba Networking OS capabilities. Matches may be used more than once.

  Select and Place:

  

  

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  CX 6200 = VSF - 8 members;

  CX 8100 = VSX;

  CX 6100 = None;

  CX 6300 = VSF - 10 members;

  CX4100 = None.

  VSF and VSX are different high-availability approaches across Aruba CX families. CX 6200 supports VSF with up to 8 members, CX 6300 supports VSF with up to 10 members, and CX 8100 uses VSX rather than VSF. CX 6100 and CX 4100 do not provide the listed stacking or clustering feature.

• Question 24:

  What is the default behavior of a trunked port on an HPE Aruba Networking CX switch?

  A. By default, all VLAN traffic is tagged to traverse a trunk link.
  B. By default, all VLAN traffic is tagged to traverse a trunk link when the port is part of a LAG.
  C. By default, all VLAN traffic is tagged to traverse a trunk link when the port type is routed.
  D. By default, all VLAN traffic is tagged to traverse a trunk link except the native VLAN.
  D. By default, all VLAN traffic is tagged to traverse a trunk link except the native VLAN.

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  Explanation

  On a trunk, VLAN traffic is tagged except for the native VLAN, which is carried untagged by default. The behavior is not limited to LAGs or routed ports, and it is not true that every VLAN is tagged when a native VLAN exists.

• Question 25:

  Which attributes are true about TCP? Select two.

  A. Does not support retransmission
  B. Connectionless
  C. Uses sequence numbers
  D. Requires an established connection
  E. Used for latency-sensitive traffic
  C. Uses sequence numbers
  D. Requires an established connection

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  Explanation

  TCP is connection-oriented and uses sequence numbers to provide ordered delivery and retransmission. It is not connectionless, and it does support retransmission. Latency-sensitive traffic often uses UDP instead because TCP reliability mechanisms can add delay.

• Question 26:

  A host has IP address 192.168.12.70 with subnet mask 255.255.255.192.

  Which subnet contains this host?

  A. 192.168.12.0/26
  B. 192.168.12.64/26
  C. 192.168.12.70/27
  D. 192.168.12.128/26
  B. 192.168.12.64/26

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  Explanation

  The /26 mask creates subnets in blocks of 64 addresses. The host address 192.168.12.70 falls in the 192.168.12.64 through 192.168.12.127 range, so the subnet is 192.168.12.64/26.

• Question 27:

  A newly connected 500 Series access point is not visible in HPE Aruba Networking Central. You have run the following commands to troubleshoot:

  

  Based on the output, what could be the problem?

  A. The AP does not support DHCP.
  B. The DHCP server must be in the same subnet as the AP.
  C. The DHCP server has run out of leases.
  D. The switch port should be configured as an access port.
  C. The DHCP server has run out of leases.

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  Explanation

  If DHCP has no available leases, the access point cannot obtain the address information it needs to reach management services. A DHCP server can be reached through relay, the AP supports DHCP, and simply changing the port to access mode does not address lease exhaustion.

• Question 28:

  Which is an example of half-duplex communication?

  A. Telephone system
  B. Push-to-talk radio
  C. FM radio broadcast
  D. Fibre-optic pair
  B. Push-to-talk radio

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  Explanation

  Push-to-talk radio is half-duplex because only one side transmits at a time while others listen. A telephone call is full-duplex, FM broadcast is one-way simplex, and a fiber pair can support simultaneous transmit and receive paths.

• Question 29:

  A switch receives an Ethernet broadcast frame on a port assigned to VLAN 20.

  What is the normal forwarding behavior?

  A. Flood the frame only within VLAN 20 except out the receiving port
  B. Forward the frame to every port on the switch regardless of VLAN
  C. Route the frame to all configured Layer 3 interfaces
  D. Drop the frame because broadcast frames are not forwarded by switches
  A. Flood the frame only within VLAN 20 except out the receiving port

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  Explanation

  A broadcast frame is flooded within its VLAN, except back out the port where it was received. VLANs limit broadcast scope, so the frame is not sent to every switch port regardless of VLAN and is not routed as a Layer 3 packet.

• Question 30:

  You are discussing the central management options for HPE Aruba Networking CX switches with a customer.

  How would you describe HPE Aruba Networking Central as a solution?

  A. AOS-CX switches are currently supported as templates only.
  B. AOS-CX switches are currently supported as monitored only.
  C. It is available only as an on-premises solution.
  D. It is available as a cloud solution.
  D. It is available as a cloud solution.

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  Explanation

  HPE Aruba Networking Central is available as a cloud management solution for supported Aruba devices.

  It is not only on-premises, and the question is asking for the management delivery model rather than a limited template-only or monitor-only description.