IBM C1000-078 exam dumps - IBM Db2 12 for z/OS Administrator

  • Exam Code: C1000-078
  • Exam Name: IBM Db2 12 for z/OS Administrator
  • Updated: Oct 13, 2026     Q & A: 62 Questions and Answers

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IBM C1000-078 Exam Syllabus Topics:

SectionWeightObjectives
Installation, Migration and Configuration17%- Installation procedures
  • 1. Function level management
  • 2. Customization and setup
  • 3. Migration from earlier versions
Database Design and Implementation17%- Object creation and management
  • 1. Table spaces, tables, indexes
  • 2. Views, triggers, stored procedures
  • 3. Data types and constraints
Db2 12 for z/OS Fundamentals and Environment15%- Architecture and components
  • 1. Data sharing concepts
  • 2. Subsystem structure
  • 3. System parameters and configuration
Operation, Maintenance and Recovery17%- Daily operations
  • 1. Log management and recovery
  • 2. Utility usage (REORG, RUNSTATS, CHECK)
  • 3. Backup and restore strategies
Performance and Tuning17%- Monitoring and optimization
  • 1. SQL tuning and access paths
  • 2. Distributed access and DDF
  • 3. Buffer pools and memory management
Security and Authorization17%- Access control
  • 1. Audit and compliance
  • 2. Authorization IDs and roles
  • 3. RACF integration

IBM Db2 12 for z/OS Administrator Sample Questions:

Question #1

Which technique is best suited to determine whether a bigger VPSIZE for a buffer pool could be beneficial?

  • A. Analyze the contents of table SYSIBM.SYSTABLESPACESTATS
  • B. Analyze accounting trace records
  • C. Analyze performance trace records
  • D. Analyze buffer pool simulation results
Reveal Solution  Discussion  0

Correct Answer: B  🗳️

Question #2

DB2 has stopped working because it has problems archiving the last active log. Which of the following commands could be used to resolve the situation?

  • A. -SET LOG SUSPEND
  • B. -SET LOG RESUME
  • C. -SET LOG LOGLOAD
  • D. -SET LOG NEWLOG
Reveal Solution  Discussion  0

Correct Answer: A  🗳️

Question #3

Which subsystem parameter specifies whether DB2 is to create new table spaces and indexes to use a basic or extended log record format?

  • A. UTILITY OBJECT CONVERSION
  • B. EXTSEC
  • C. OBJECT_CREATE_FORMAT
  • D. CHKLOGR
Reveal Solution  Discussion  0

Correct Answer: C  🗳️

Question #4

When must the IRLM address space be active?

  • A. At the first concurrent lock situation
  • B. After startup of DB2
  • C. During start of DB2
  • D. At the first lock request
Reveal Solution  Discussion  0

Correct Answer: A  🗳️

Question #5

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

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

Correct Answer: A,C  🗳️

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