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Exam HPE6-A79 topic 1 question 20 discussion

Actual exam question from HP's HPE6-A79
Question #: 20
Topic #: 1
[All HPE6-A79 Questions]

An organization owns a fully functional multi-controller Aruba network with a Virtual Mobility Master (VMM) in VLAN20. They have asked a network consultant to deploy a redundant MM on a different server. The solution must offer the lowest convergence time and require no human interaction in case of failure.
The servers host other virtual machines and are connected to different switches that implement ACLs to protect them. The organization grants the network consultant access to the servers only, and appoints a network administrator to assist with the deployment.
What must the network administrator do so the network consultant can successfully deploy the solution? (Choose two.)

  • A. Allocate VLAN20 to the second server, and extend it throughout the switches, then reserve one IP address for the second MM and another IP address for its gateway.
  • B. Allocate VLAN20 to the second server, and permit routing between them, then reserve one IP address for the second MM and another IP address for its gateway.
  • C. Configure an ACL entry that permits IP protocol 50, UDP port 500, and multicast IP 224.0.0.18.
  • D. Allocate VLAN20 to the second server, and extend it throughout the switches, then reserve one IP address for the second MM and another for the VIP.
  • E. Configure an ACL entry that permits UDP 500, TCP 4500, and multicast IP 224.0.0.5.
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Suggested Answer: AE 🗳️

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Smartf0x
11 months, 1 week ago
Selected Answer: CD
the correct : C and D
upvoted 1 times
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dianacuellarr
1 year, 3 months ago
C and D Master-redundancy IPsec phase-1 is using ISAKMP UDP port#500 and IPsec Phase-2 is using IP protocol number 50 (ESP). It’s important to make sure no firewall or ACLs are blocking UDP port#500 and IP protocol #50 within the path of the Mobility Master’s communication. VRRP uses multicast (224.0.0.18) to exchange hello messages with another VRRP neighbor on the same VLAN. If Promiscuous Mode is not enabled on the VM ports then the other Mobility Master Virtual Appliance does not see all those multicast messages.
upvoted 1 times
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SniBBz
1 year, 6 months ago
C and D is correct.
upvoted 1 times
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