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Infoblox NIOS-DDI-Expert Exam - Topic 4 Question 10 Discussion

Actual exam question for Infoblox's NIOS-DDI-Expert exam
Question #: 10
Topic #: 4
[All NIOS-DDI-Expert Questions]

VRRP is used for Infoblox High Availability. VRRP requires a virtual IP address, a virtual router ID, a virtual MAC address, and a VRRP priority. The administrator configures which values? (Select all that apply.)

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Suggested Answer: B, C, D

Comprehensive and Detailed In-Depth

Virtual Router Redundancy Protocol (VRRP) is the mechanism Infoblox uses for HA pairs, ensuring seamless failover between active and passive nodes by sharing a virtual IP (VIP). Let's analyze what the administrator configures:

A (Virtual MAC Address): VRRP automatically generates the virtual MAC address based on the Virtual Router ID (VRID) using the format 00:00:5E:00:01:XX, where XX is the VRID in hexadecimal. The admin doesn't manually set this---it's derived. Incorrect.

B (Virtual IP Address): The VIP is the shared IP that clients use to reach the HA pair. The administrator must configure this in the HA setup (e.g., 192.168.1.100) to define the service endpoint. Correct.

C (Virtual Router ID): The VRID (1-255) uniquely identifies the VRRP group on the network. The admin sets this to avoid conflicts with other VRRP instances. Correct.

D (VRRP Priority): The priority (0-255) determines which node is active (higher priority wins). The admin configures this (e.g., 100 for active, 90 for passive) to control failover behavior. Correct.

Practical Example: In an INE lab, you'd configure a VIP (e.g., 10.0.0.10), VRID (e.g., 25), and priorities (e.g., 100/90) to set up an HA pair, then troubleshoot failover using VRRP logs.


by Leota at Jul 03, 2025, 11:08 AM

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Carolynn
2 months ago
I thought the Virtual router ID was also configurable?
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Terrilyn
2 months ago
Totally agree, those are key settings!
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Kip
3 months ago
Yup, all four values are important for proper setup!
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Janessa
3 months ago
Wait, can you really set the Virtual MAC address?
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Jolene
3 months ago
You configure the Virtual IP address and VRRP priority.
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Ashton
3 months ago
I'm a bit confused about the virtual MAC address. I thought it was automatically generated, but maybe we can configure it too?
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Sarah
4 months ago
I practiced a similar question last week, and I think VRRP priority is definitely configurable. The virtual IP and router ID seem to be too.
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Mary
4 months ago
I think the virtual router ID is also something we set up, but I can't recall if it's mandatory or optional.
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Kayleigh
4 months ago
I remember we discussed that the virtual IP address is definitely something the admin configures, but I'm not sure about the virtual MAC address.
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Elvera
4 months ago
Wait, I'm a bit confused. Does the administrator configure the virtual MAC address or is that something else? I want to make sure I get this right.
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Jenelle
4 months ago
Okay, I've got this. The administrator configures the virtual IP address, virtual router ID, virtual MAC address, and VRRP priority. I'm confident I've got all the right answers.
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Mozelle
5 months ago
Hmm, I'm not too familiar with VRRP, but I think the virtual MAC address is also something the administrator configures. Let me double-check that.
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Deane
5 months ago
This seems straightforward. I'll select the virtual IP address, virtual router ID, and VRRP priority since those are all mentioned in the question.
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Frederick
6 months ago
Haha, I wonder if the virtual MAC address comes with a complimentary virtual Ferrari too. Anyway, B, C, and D are the right choices here.
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Margurite
7 months ago
I agree, B, C, and D are the ones the admin needs to configure. Anything less and it's just not a complete VRRP setup.
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Carrol
7 months ago
That's right. And don't forget about the VRRP priority that needs to be configured as well.
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Thurman
8 months ago
I believe the Virtual router ID is another value that the administrator configures.
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Dong
8 months ago
Yes, that's correct. The Virtual IP address is also configured by the administrator.
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Carrol
8 months ago
I think the administrator configures the Virtual MAC address.
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Isaac
8 months ago
Definitely B, C, and D. Gotta have that virtual IP, router ID, and priority to make VRRP work!
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Diane
7 months ago
Yeah, the VRRP priority is crucial for determining the master router.
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Detra
7 months ago
Don't forget about the virtual router ID, that's important too.
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Kimbery
7 months ago
I agree, you definitely need the virtual IP address for VRRP.
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