Which of the Following Is True About a Shared Lock

question 41

Multiple Choice

Which of the following is true about a shared lock?

• A) It is more restrictive than an implicit lock.
• B) It allows only two transactions to update a record simultaneously.
• C) It locks the item from all access.
• D) It allows reads to the locked item.
• E) It must use a two-phase locking scheme.

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