NoSQL data store, aren't we moving to the age of flat files?

It's a hot topic in architect community "Moving to NoSQL DB". But my question is, Does NoSQL DB is capable enough to process huge database.

1. Does it support indexing
2. Does it support backups (data backup and log backup)
3. Is there Management Tools available
4. Does it support replication
5. Does it support Transaction

A developer can work independen开发者_JS百科tly on Relational Database. Does NoSQL has such tools. Can we use it in data center?

Thanks

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Nirajan, The answer to all of your questions with regards to RavenDB is that it absolutely does support all of those.

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Regarding RavenDB:

1. yes
2. yes
3. yes (it's self-explanatory and missing from the documentation, but it will be re-written anyway)
4. yes
5. yes