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Infoblox NIOS-DDI-Expert Exam - Topic 5 Question 12 Discussion
Topic #: 5
Which types of Zone are available for Add Zone? (Select all that apply.)
Comprehensive and Detailed In-Depth
In NIOS Grid Manager (Data Management > DNS > Add Zone), administrators can create various zone types to manage DNS resolution. All listed options are valid:
A (Authoritative Zone): A zone where the Infoblox appliance is the authoritative source for DNS records (e.g., example.com with A, MX records). Correct.
B (Forward Zone): A zone configured to forward queries to external DNS servers (e.g., forwarding 'internal.com' to a corporate DNS). Correct.
C (Primary Zone): Often synonymous with Authoritative Zone in Infoblox, it's a master zone hosting original DNS data (distinct from secondary zones). Correct.
D (Delegation): A zone delegated to another name server (e.g., 'sub.example.com' delegated to different NS records). Correct.
Clarification: In NIOS, 'Authoritative' and 'Primary' are sometimes used interchangeably, but both are options in the Add Zone wizard, alongside Forward and Delegation zones.
Practical Example: In an INE lab, you might add an Authoritative Zone for 'lab.com,' a Forward Zone for external lookups, and a Delegation for a subdomain, testing DNS troubleshooting across these types.
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