Question at position 34 A business transaction requires:human intervention.a trigger.a stored procedure.several actions against the database.

Question

BlackTom AI · Accepted Answer

A transaction in a database context is fundamentally a logical unit of work composed of one or more database operations that must be executed together so the system remains consistent. This is why the correct answer is: several actions against the database.

Relevant concepts:
- ACID properties: Atomicity (all operations in the transaction succeed or none do), Consistency (database moves from one valid state to another), Isolation (concurrent transactions don’t interfere), Durability (committed results persist).
- A “business transaction” typically models a real-world business operation that requires multiple DB changes (for example, debit one account and credit another in a funds transfer).

Step-by-step reasoning:
1. Define the term: A database transaction is a grouping of operations (INSERT/UPDATE/DELETE/SELECT under certain isolation) that form one unit of work.
2. Identify the minimal requirement: For a business transaction to represent a business operation, it usually encompasses several database actions that must be treated atomically (e.g., update inventory, create an invoice, adjust customer balance).
3. Evaluate each answer option:
   - “human intervention.” Not required: transactions can be created and committed programmatically without human action.
   - “a trigger.” Not required: triggers are reactive mechanisms; they may implement logic but a transaction does not require a trigger to exist.
   - “a stored procedure.” Not required: stored procedures can encapsulate transaction logic but are optional; transactions can be managed in application code or ad-hoc SQL.
   - “several actions against the database.” This matches the definition: business transactions group multiple DB operations into one atomic unit.

Why the correct answer is correct:
Because the defining characteristic of a business transaction is that it comprises several related database actions that must succeed or fail together under ACID rules. Triggers, stored procedures, or humans are implementation choices, not defining requirements.

Final confirmation: The correct answer is “several actions against the database.”

Question at position 34 A business transaction requires:human intervention.a trigger.a stored procedure.several actions against the database.Single choice

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