HP HPE6-A86 Online Practice Questions and Exam Preparation

HP HPE6-A86 Online Questions & Answers

• Question 31:

  Which Layer 2 technology helps prevent switching loops when redundant physical paths exist between switches?

  A. RSTP
  B. ARP
  C. DNS
  D. NAT
  A. RSTP

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  Explanation

  RSTP prevents Layer 2 loops by building a loop-free forwarding topology while retaining redundant links for failover. ARP, DNS, and NAT do not calculate switch port roles or block redundant Layer 2 paths.

• Question 32:

  A technician is explaining why two hosts on the same Ethernet VLAN can discover each other's MAC addresses before sending IP traffic.

  Which protocol is used for this discovery?

  A. ARP
  B. DNS
  C. LLDP
  D. SNMP
  A. ARP

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  Explanation

  ARP resolves a known IPv4 address to the destination MAC address needed for Ethernet delivery on the local network. DNS resolves names, LLDP discovers neighbors, and SNMP is used for monitoring or management.

• Question 33:

  Which item is at the Physical Layer of the OSI model?

  A. URL
  B. Switch port
  C. IP address
  D. TCP port
  B. Switch port

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  Explanation

  A switch port is a physical interface and belongs to OSI Layer 1 from the perspective of media and signaling. URLs are application-layer identifiers, IP addresses are network-layer information, and TCP ports belong to the transport layer.

• Question 34:

  Which is at the Transport Layer of the OSI model?

  A. IP address
  B. TCP port
  C. MAC address
  D. Switch port
  B. TCP port

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  Explanation

  TCP and UDP port numbers are transport-layer identifiers. IP addresses are network-layer identifiers, MAC addresses are data-link identifiers, and physical switch ports are associated with the physical layer.

• Question 35:

  A technician installed a new HPE Aruba Networking 550 Series access point, which is cabled back to an

  HPE Aruba Networking CX 6000 Series switch.

  However, there are no lights on the access point.

  What could cause this?

  A. STP has not been configured.
  B. PoE is disabled on the interface.
  C. The access point cannot connect to HPE Aruba Networking Central.
  D. The wrong VLAN has been configured.
  B. PoE is disabled on the interface.

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  Explanation

  If PoE is disabled on the switch interface, an access point powered by that Ethernet link will not receive power and may show no lights. VLAN, STP, or Central connectivity problems can affect network operation, but they do not normally prevent the AP from powering on.

• Question 36:

  The external DHCP server is configured with the IP address 192.168.1.100. The HPE Aruba Networking

  CX 6300M VSF is the Layer 3 gateway for VLAN 200 clients, which should receive an IP address from the 192.168.200.0/24 subnet

  using the external DHCP server address.

  How do you configure IPv4 DHCP relay on the specific HPE Aruba Networking CX 6300 switch?

  A. interface vlan 200 ip address 192.168.200.1/24 ip helper-address 192.168.1.100
  B. interface vlan 1 ip address 192.168.200.1/24 ip helper-address 192.168.1.100
  C. interface vlan 1 ip address 192.168.200.1/24 dhcp-relay server 192.168.1.100
  D. interface vlan 200 ip address 192.168.200.1/24 dhcp-relay server 192.168.1.100
  A. interface vlan 200 ip address 192.168.200.1/24 ip helper-address 192.168.1.100

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  Explanation

  DHCP relay is configured on the client VLAN SVI with the gateway IP address and an ip helper-address pointing to the external DHCP server. The helper belongs on VLAN 200, not VLAN 1, and the shown dhcp-

  relay server syntax is not the expected AOS-CX interface configuration.

• Question 37:

  How many broadcast domains are shown in the diagram below?

  

  A. 1
  B. 2
  C. 4
  D. 6
  B. 2

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  Explanation

  A broadcast domain is bounded by a Layer 3 boundary or VLAN separation. The topology contains two separate broadcast domains, so a broadcast from one side is not flooded into the other domain. Four or six would count individual links or devices rather than broadcast domains.

• Question 38:

  Which statement correctly describes the factory default on an HPE Aruba Networking CX switch?

  A. Static routing is disabled by default.
  B. VSF stacking is disabled by default.
  C. Default VLAN 1 is created by default.
  D. Multicast routing is enabled by default.
  C. Default VLAN 1 is created by default.

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  Explanation

  A default VLAN 1 exists on an HPE Aruba Networking CX switch in factory-default configuration. The other statements describe features or routing behavior that are not the key factory-default item asked by the question.

• Question 39:

  You are checking the interface details for an access point that cannot reach HPE Aruba Networking Central.

  After reviewing the following output, which statement is true?

  

  A. Layer 2 QoS markings from the AP will be trusted.
  B. The interface has been administratively disabled.
  C. VLANs 10, 20, and 30 are 802.1Q tagged.
  D. The link on interface 1/1/16 is not established.
  D. The link on interface 1/1/16 is not established.

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  Explanation

  The relevant interface status indicates that the link on interface 1/1/16 is not established. An administratively disabled interface, trusted QoS markings, or tagged VLAN list would point to different operational states than the link-down condition.

• Question 40:

  What are valid responses from a RADIUS server? Choose two.

  A. ACCEPT
  B. ALLOW
  C. PERMIT
  D. DENY
  E. BLOCK
  F. REJECT
  A. ACCEPT
  F. REJECT

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  Explanation

  A RADIUS server commonly returns Access-Accept or Access-Reject outcomes. Terms such as ALLOW, PERMIT, DENY, and BLOCK are generic policy words, but they are not the standard RADIUS response names in this context.