IBM Db2 12 for z/OS Administrator: C1000-078 Exam

"IBM Db2 12 for z/OS Administrator", also known as C1000-078 exam, is a IBM Certification. With the complete collection of questions and answers, UpdateDumps has assembled to take you through 62 Q&As to your C1000-078 Exam preparation. In the C1000-078 exam resources, you will cover every field and category in IBM Certified Administrator Certification helping to ready you for your successful IBM Certification.

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  • Updated on: Oct 05, 2026
  • No. of Questions: 62 Questions & Answers

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  • Updated on: Oct 05, 2026
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IBM C1000-078 Exam Syllabus Topics:

SectionObjectives
Db2 12 for z/OS Architecture and Installation- Db2 subsystem components and architecture
- Installation and migration considerations
Database Design and Objects- Tables, indexes, and storage structures
- Schema design and object management
Security and Authorization- Privileges, roles, and access control
- Authentication and authorization models
Backup, Recovery, and Data Integrity- Recovery strategies and logging
- Backup utilities and procedures
Performance Monitoring and Tuning- Query performance analysis
- Subsystem monitoring and optimization

IBM Db2 12 for z/OS Administrator Sample Questions:

What are the appropriate actions that can be taken to reduce false contention in a data sharing environment? (Choose two)

  • A. Increase workload with inter-DB2 read/write interest
  • B. Reduce the IRLMRWT subsystem parameter value
  • C. Increase the proportional size of the lock table
  • D. Use LOCKSIZE PAGE and MAXROWS 1
  • E. Increase the size of the lock structure
Reveal Solution  Discussion  0

Correct Answer: B,E  🗳️

Which statement is TRUE if the PARAMDEG_DPSI subsystem parameter is set to the default value of 0?

  • A. The DB2 optimizer will not consider DPSI for access path selection
  • B. DB2 creates multiple child tasks but works on one task at a time when DPSI is used to drive parallelism
  • C. DB2 will use the value specified for the PARAMDEG subsystem parameter to control the degree of parallelism when DPSI is used
  • D. Parallelism for DPSI is disabled
Reveal Solution  Discussion  0

Correct Answer: C  🗳️

What action will enable most new functions in DB2 12?

  • A. Activation of function level 500 or higher
  • B. Applying a specific PTF
  • C. Conversion of the BSDS to support 10-byte RBA/LRSN
  • D. Enablement of a new subsystem parameter
Reveal Solution  Discussion  0

Correct Answer: A  🗳️

Which of the following utilities would produce information needed to identify UNDO information for a transaction?

  • A. DSN1LOGP
  • B. DSNJU004
  • C. DSNJU003
  • D. DSNJLOGF
Reveal Solution  Discussion  0

Correct Answer: C  🗳️

Before execution of the CHECK DATA utility, which of the following should be performed?

  • A. Execute the REPAIR utility with SET NOCHECKPEND
  • B. Alter the object to remove any table or referential constraint definitions
  • C. Execute CHECK INDEX on the primary key and foreign key indexes
  • D. Start the object in question with FORCE to remove any CHECK PENDING status
Reveal Solution  Discussion  0

Correct Answer: D  🗳️

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