Architecture: Which of the following is not considered a basic element of an enterprise-class database system?

Difficulty: Easy

Correct Answer: COBOL programs

Explanation:


Introduction / Context:
Enterprise database systems can be viewed as a set of core elements that together deliver data services to organizations. Identifying these elements clarifies responsibilities and integration points.



Given Data / Assumptions:

  • A typical database system consists of users, applications, a DBMS, and the database (data + metadata).
  • Programming languages used to build applications are not themselves elements of the database system.


Concept / Approach:
The classic four components are: users, database applications (client or services), the DBMS engine, and the database. Language ecosystems (Java, COBOL, Python) may be used to build applications but are not foundational elements by themselves.



Step-by-Step Solution:

Users → interact with applications or directly with the DBMS → core element.Database applications → encapsulate business logic → core element.DBMS → provides data services, security, concurrency, recovery → core element.Database → persistent data + metadata → core element.COBOL programs → one possible implementation technology for applications, not a required element.


Verification / Alternative check:
Standard database textbooks outline these four elements explicitly; languages are tools used to implement one element (applications).



Why Other Options Are Wrong:
They each represent an essential component without which the system would not function as a database solution.



Common Pitfalls:
Equating a specific language or framework with an architectural element; remember that the application component can be implemented in many languages.



Final Answer:
COBOL programs

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