Three-tier responsibility check:\nConsider the claim:\n\n"Activities of a DBMS occur in the processing component logic."

Difficulty: Easy

Correct Answer: Does not apply (incorrect: DBMS activities belong to data management)

Explanation:


Introduction / Context:
In layered or three-tier architectures, responsibilities are separated into presentation, processing (business/application), and data management components. This question checks whether you can correctly place DBMS responsibilities.


Given Data / Assumptions:

  • The DBMS provides storage, query processing, transaction management, concurrency control, and recovery.
  • Processing logic implements business rules and workflows.
  • Presentation handles UI and input/output formatting.


Concept / Approach:
DBMS activities—parsing/optimizing SQL, maintaining indexes, enforcing ACID properties—are part of the data management component, not the processing (business) logic. Business code calls the DBMS through drivers/ORMs, but the engine’s work is conceptually and operationally distinct from the application tier.


Step-by-Step Solution:

Identify DBMS functions: storage, query execution, transactions, backup/recovery.Map them to the data management tier.Recognize that processing logic invokes, but does not subsume, DBMS responsibilities.Conclude the claim is incorrect.


Verification / Alternative check:
Examine deployment diagrams: DB server(s) are separate processes/services with their own resource management and security boundaries.


Why Other Options Are Wrong:

  • Applies and the conditional variants misplace responsibilities; stored procedures still run within the DBMS, part of data management.


Common Pitfalls:
Collapsing tiers conceptually; assuming ORMs make the DBMS part of the application layer; overlooking administrative DB tasks that are independent of application code.


Final Answer:
Does not apply (incorrect: DBMS activities belong to data management)

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