The Term "Stale Data" Refers to a Situation in Multi-CPU

question 27

Multiple Choice

The term "stale data" refers to a situation in multi-CPU machines when one thread modifies shared data and a second thread accesses that data later, but sees the data value before the change took place. What is required to guarantee that the second thread sees the updated data, not stale data when access to the shared data occurs in two different methods?

• A)One method needs to acquire then release the lock after modifying the data.
• B)Both methods need to acquire then release the lock after modifying or reading the data.
• C)Never change any shared object data in multi-CPU machines.
• D)Never use locks for any shared data in multi-CPU machines.

---

Definitions:

Corporation Formation

The legal process of creating a corporation, which involves filing necessary documents with a governmental entity, adhering to laws, and meeting statutory requirements.

By-laws

Internal rules governing the operation and management of an organization or corporation, typically adopted by its board or membership.

Corporate Charter

A corporate charter is a legal document issued by a government entity that establishes a corporation's existence and outlines its rights and obligations.

Transferability of Ownership

The capability to legally transfer one's ownership stake in an asset or a company to another party.