REF: AI Tools/ChatGPT/OpenAI/Internet
What is a Flat Name Space?
Sure! Let’s break down DNS flat name space clearly.
1. What is a Flat Name Space?
A flat name space is a naming system where all names exist at the same level, without any hierarchy. In other words:
- Every name is unique, but there is no parent-child relationship.
- Names do not indicate location or domain.
- Think of it as a simple list of names, like a phonebook where each person has a unique name but there’s no grouping.
2. Flat vs. Hierarchical Name Space
| Feature | Flat Name Space | Hierarchical Name Space |
| Structure | Single level | Multiple levels (tree-like) |
| Example | Alice, Bob, Charlie | alice.example.com, bob.example.net |
| Uniqueness | Must be unique globally | Unique within its parent domain |
| Scalability | Not scalable (hard to manage many names) | Scalable (can delegate subdomains) |
| Resolution | Simple (direct lookup) | Can be iterative or recursive through DNS hierarchy |
