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F5 BIG-IP DNS Specialist (302) Exam Materials-Question 111 Discussion
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Which two fundamental steps are necessary to include an LTM device properly into an iQuery mesh? (Choose two answers)

  • A. run gtm add <BIG-IP DNS self IP> on the new LTM device add the new LTM device to the Server list on any BIG-IP DNS device in the synchronization group
  • B. add the new LTM device to the Server list on all BIG-IP DNS devices in the synchronization group
  • C. run bigip add <BIG-IP DNS self IP> on the new LTM device
  • D. run bigip_add <new LTM self IP> on any BIG-IP DNS device in the synchronization group
Correct Answer: B,E

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Luiz Fernando Conegundes 2026-07-16 21:03:19

Selected Answers: A, D


A.** Run `gtm_add <BIG-IP DNS self IP>` on the new LTM device and add the new LTM device to the Server list on any BIG-IP DNS device in the synchronization group.
D.** Run `bigip_add <new LTM self IP>` on any BIG-IP DNS device in the synchronization group.

Explanation:

To properly include an LTM device in an iQuery mesh, you need to establish the trust relationship between the devices:

1. On the new LTM, run `gtm_add` pointing to the BIG-IP DNS (formerly GTM) self IP.

2. On a BIG-IP DNS device, run `bigip_add` pointing to the new LTM self IP (or add it as a Server object, which is then synchronized to the other BIG-IP DNS devices in the sync group).

Why the others are incorrect:

B: is incorrect because you do not need to add the server on **all** BIG-IP DNS devices. Adding it on one device in the synchronization group is sufficient.
C: is incorrect because `bigip_add` is not run on the LTM pointing to the BIG-IP DNS self IP.