Metadata API follows which pattern?
Is it "Request and Reply"  or "Batch Data Synchronization"

which pattern does Metadata API follow?
- Remote Process Invocation—Request and Reply or 
- Remote Process Invocation—Fire and Forget or 
- Batch Data Synchronization or
- Remote Call-In or
- UI Update Based on Data Changes

Metadata API follows which pattern?
Is it "Request and Reply"  or "Batch Data Synchronization"

which pattern does Metadata API follow?
- Remote Process Invocation—Request and Reply or 
- Remote Process Invocation—Fire and Forget or 
- Batch Data Synchronization or
- Remote Call-In or
- UI Update Based on Data Changes