The _____ Guarantees That If a Portion of a Transaction

question 3

Multiple Choice

The _____ guarantees that if a portion of a transaction operation cannot be committed, all changes made at the other sites participating in the transaction will be undone to maintain a consistent database state.

• A) DO-UNDO-REDO protocol
• B) two-phase commit protocol (2PC)
• C) coordinator protocol
• D) write-ahead protocol

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Definitions:

Facial Feedback Hypothesis

The Facial Feedback Hypothesis suggests that facial movements can influence emotional experiences, implying that smiling can make one feel happier, while frowning can lead to sadness.

Smiling

A facial expression denoting pleasure, favor, or amusement, but can also be a voluntary or involuntary response to social interactions.

Mood

A temporary state of mind or feeling that can vary from happiness to sadness, which affects a person's emotional state but is less intense than emotions.

Cognitive Arousal Theory

A theory suggesting that arousal in the cognitive system can affect emotions and motivation.