- Exam Code: 000-556
- Exam Name: Informix 11.50 Application Developer
- Updated: Sep 02, 2026
- Q & A: 115 Questions and Answers
PDF, desktop test engine, or online test engine — Actual4Dumps lets you prepare for the IBM Informix 11.50 Application Developer whichever way fits your routine. All three formats cover the same 115 practice questions written for the 2026 000-556 syllabus.
| Certification Vendor: | IBM |
|---|---|
| Exam Name: | IBM Informix 11.50 Application Developer |
| Exam Number: | A2090-556 |
| Exam Format: | Multiple choice, Scenario-based questions |
| Available Languages: | English |
| Related Certifications: | IBM Certified Database Administrator - Informix IBM Certified System Administrator - Informix |
| Recommended Training: | IBM Training - Informix Courses |
| Exam Registration: | Pearson VUE IBM Exams IBM Certification Portal |
| Sample Questions: | ![]() |
| Exam Way: | Online proctored or test center (IBM authorized testing provider) |
| Pre Condition: | Basic knowledge of relational databases and SQL is recommended; experience with Informix 11.50 application development is strongly advised. |
| Official Syllabus URL: | https://www.ibm.com/training/certification |
| Section | Objectives |
|---|---|
| Topic 1: Application Development with Informix | - Embedded SQL programming - 4GL and SPL usage - Data manipulation and transaction handling |
| Topic 2: SQL and Database Programming | - SQL query development and optimization - Triggers and constraints - Stored procedures and routines |
| Topic 3: Performance and Tuning | - Query optimization techniques - Monitoring and diagnostics - Index design and usage |
| Topic 4: Informix Architecture and Components | - Client-server communication - Memory and storage structures - Instance structure and database server architecture |
| Topic 5: Security and Administration Basics | - User roles and permissions - Authentication and authorization |
The IBM Informix 11.50 Application Developer is the official IBM exam that leads to the IBM Certified Application Developer - Informix 11.50 certification at the Professional level. Passing it validates your skills against IBM standards and proves your qualification to current and future employers. The credential is also connected with related certifications such as IBM Certified Database Administrator - Informix, IBM Certified System Administrator - Informix, so it can serve as a solid step in a broader certification path.
IBM sets the following requirement for the 000-556 exam: Basic knowledge of relational databases and SQL is recommended; experience with Informix 11.50 application development is strongly advised.. Eligibility rules can change from time to time, so always confirm the current prerequisites on the official exam page at https://www.ibm.com/training/certification before you register.
You can register for the IBM Informix 11.50 Application Developer through the following official channels:
The 000-556 exam is delivered as Online proctored or test center (IBM authorized testing provider), so review the technical and check-in requirements for that format when you schedule your appointment.
IBM recommends the following official training options for the IBM Informix 11.50 Application Developer:
Official courses build the theory, and pairing them with the 115 practice questions from Actual4Dumps turns that knowledge into exam-ready answers.
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The IBM Informix 11.50 Application Developer is organized into 5 domains. Among the first ones are Informix Architecture and Components, Performance and Tuning, Security and Administration Basics, and the remaining domains cover the rest of the official objectives. For the complete topic breakdown with every subtopic, see the full 000-556 exam outline above on this page.
Question 1
Which of the following may NOT be done with Informix SPL functions?
A. Execute dynamic SQL inside the function.
B. Declare two functions with the same name.
C. Used as a function in the create index statement.
D. SQL Optimizer directives inside stored procedures.
Question 2
Where are the UNION and UNION ALL operators in subqueries supported?
A. In SELECT statements within the WHERE clause.
B. In the FOR UPDATE clause or in an Update cursor.
C. In the definition of a view.
D. In the event or in the action clause of a trigger.
Question 3
Which data type's internal structure is inaccessible to the database server?
A. Opaque
B. ROW Named
C. ROW Unnamed
D. SET
Question 4
Which is NOT a characteristic of dynamic SQL in a program?
A. It assembles the text of an SQL statement as a character string.
B. It uses the EXECUTE statement to execute the prepared statement.
C. It executes a PREPARE statement, which asks the database server to examine the statement text and prepare it for execution.
D. It requires the exact content of every SQL statement to be known at the time the program is written.
Question 5
A distinct user defined data type called "dollar" is created as follows:
CREATE DISTINCT TYPE dollar AS DOUBLE PRECISION;
When can you convert it to its base data type double precision?
A. It may always be converted to its base data type.
B. As long as no conversion rate is required.
C. When a cast function exists between these two types.
D. Only when the ALLOW_BASE_CAST attribute is used when creating the type.
Solutions:
| Question 1 Answer: C | Question 2 Answer: A | Question 3 Answer: A | Question 4 Answer: D | Question 5 Answer: C |
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