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When using this type of protocol, each transaction must obtain a ___ on the data before it can read or write it

1. When using this type of protocol, each transaction must obtain a ___ on the data before it can read or write it.

1. Lock
2. Protocol
3. Base
4. Transaction

Answer: A) Lock

Explanation:

When using this type of protocol, each transaction must obtain a lock on the data before it can read or write it.