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Q2 Single choice

You are a solution architect working with a startup that has decided to move their workload to Oracle Cloud Infrastructure. Since their workload is small, upon architecting, you decide its sufficient to use 8 compute instances to run their workload. The company wants to use a common storage for their instances. So, you propose the idea of attaching a block volume to multiple instances to provide a common storage.

Which of the below option is NOT true for such a solution?

A
If the block volume is already attached to an instance as read/write non-shareable you can't attach it to another instance until you detach it from the first instance.
B
Block volumes attached as read-only are configured as shareable by default.
C
You can delete a block volume from one instance without detaching it from all other instances there by
keeping other instance's storage intact.
D
Once you attach a block volume to an instance as read-only, it can only be attached to other instances as read-only.

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