IBM : C2090-548 Questions & Answers

Updated: Sep 04, 2026

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IBM C2090-548 Exam Syllabus Topics:

SectionObjectives
Performance and Tuning- Performance monitoring
  • 1. Bottleneck identification
    • 2. IMS performance analysis tools
      - Optimization techniques
      • 1. Database access optimization strategies
        • 2. Buffer tuning and storage optimization
          Security and Access Control- Access control mechanisms
          • 1. IMS security architecture
            • 2. Authorization and authentication concepts
              Database Recovery and Availability- Recovery mechanisms
              • 1. Log-based recovery concepts
                • 2. Image copy and change accumulation
                  - High availability concepts
                  • 1. Failover and restart procedures
                    • 2. Database recovery utilities
                      IMS Environment and Architecture- IMS system components and structure
                      • 1. IMS DB/DC architecture overview
                        • 2. Control regions and address spaces
                          - IMS data organization concepts
                          • 1. Hierarchical database model fundamentals
                            • 2. Database record and segment structure
                              Database Definition and Management- Database design and DBD/PSB concepts
                              • 1. Database Definition (DBD) creation and usage
                                • 2. Program Specification Block (PSB) usage
                                  - Database maintenance
                                  • 1. Database allocation and reorganization
                                    • 2. Data integrity management

                                      IBM Certified Database Administrator - IBM IMS Sample Questions:

                                      Question #1

                                      What can comprise a HISAM database?

                                      • A. A KSDS and an ESDS
                                      • B. A single KSDS only
                                      • C. A KSDS and an OSAM dataset
                                      • D. Multiple KSDSs
                                      Answer: A
                                      Question #2

                                      Which one of the following options is TRUE about High Availability and Disaster Recovery (HADR) feature?

                                      • A. HADR allows up to four HADR standby databases.
                                      • B. HADR allows up to two HADR standby databases.
                                      • C. HADR allows up to five HADR standby databases.
                                      • D. HADR allows up to three HADR standby databases.
                                      Answer: D
                                      Question #3

                                      Which of the following is TRUE about PL/SQL support in DB2?

                                      • A. DB2 requires third party software to execute PL/SQL statements.
                                      • B. PL/SQL support is only enabled when using federation to access other vendor databases.
                                      • C. The DB2 compiler can process PL/SQL statements and create the required objects in the database. The PL/SQL support is enabled by setting the DB2_COMPATIBILITY_VECTOR registry variable.
                                      • D. You can only execute PL/SQL statements using the CLPPIus interface.
                                      Answer: C
                                      Question #4

                                      DB2's High Availability and Disaster Recovery (HADR) feature provides a high availability solution for both partial and complete site failures. Given the sentences below, select the CORRECT statement about HADR.

                                      • A. HADR feature is only available for DB2 Advanced Enterprise Edition.
                                      • B. HADR protects against data loss by replicating data changes from a backup database file to a standby database.
                                      • C. HADR protects against data loss by replicating data changes from a source database, called the primary, to a target database, called the standby.
                                      • D. HADR protects against data loss by saving data changes from a source database into a local recovery log file.
                                      Answer: C
                                      Question #5

                                      What is the DB2 design advisor?

                                      • A. The DB2 design advisor is a help desk facility that is available to all licensed DB2 owners thathave paid their maintenance agreements with IBM. The tool is a Web site that guides youthrough the design of your database, with the DBA responding to a series of questions. Itproduces a database schema that allows for quick database creation.
                                      • B. DB2 has no design advisor tool.
                                      • C. The DB2 design advisor is a tool that automatically analyzes your running database andcontinuously makes changes to your database, so that the database is running at peakperformance.
                                      • D. The DB2 design advisor is a tool that can help you improve your workload performance. Thetool asks you questions about your workload and other options it should take into account, and then recommends performance changes to your database.
                                      Answer: D

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