Data access object models ________ provides a simpler, higher-level object model than OLE DB and is widely used in database applications for rapid development.

Difficulty: Easy

Correct Answer: ADO

Explanation:


Introduction / Context:
OLE DB is a low-level COM-based data access technology. Many developers prefer a simpler abstraction for rapid application development, scripting, and language interoperability—this is where ADO (ActiveX Data Objects) became popular.



Given Data / Assumptions:

  • We compare object models and their complexity.
  • We want an easier, higher-level API than OLE DB.
  • Targeted at broad language support and quick data tasks.


Concept / Approach:

ADO wraps OLE DB to expose Recordset, Command, and Connection objects that are straightforward to use from VB, VBScript, and other COM-aware languages. It hides much of the provider-specific plumbing while still allowing access to relational and non-relational sources through OLE DB providers.



Step-by-Step Solution:

Identify the requirement: simpler than OLE DB.Select the wrapper that simplifies OLE DB → ADO.Confirm widespread use for classic Windows scripting and RAD tools.Reject unrelated technologies (ASP is a server framework, XML is a format, ODBC is C-API, JDBC is Java-specific).


Verification / Alternative check:

Documentation from Microsoft positions ADO as a high-level interface over OLE DB providers, emphasizing ease of use.



Why Other Options Are Wrong:

  • ASP: web framework, not a data API.
  • XML: data format, not a data access object model.
  • ODBC: procedural C API, not an object model.
  • JDBC: Java API, not a generic wrapper over OLE DB.


Common Pitfalls:

  • Confusing ADO with ADO.NET (a different .NET-era library).
  • Assuming ADO works without OLE DB providers; it relies on them.


Final Answer:

ADO

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