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

C1000-078 real exams

Exam Code: C1000-078

Exam Name: IBM Db2 12 for z/OS Administrator

Updated: Oct 03, 2026

Q & A: 62 Questions and Answers

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IBM C1000-078 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Database Design and Implementation17%- Object creation and management
  • 1. Views, triggers, stored procedures
  • 2. Data types and constraints
  • 3. Table spaces, tables, indexes
Topic 2: Db2 12 for z/OS Fundamentals and Environment15%- Architecture and components
  • 1. Data sharing concepts
  • 2. System parameters and configuration
  • 3. Subsystem structure
Topic 3: Operation, Maintenance and Recovery17%- Daily operations
  • 1. Backup and restore strategies
  • 2. Utility usage (REORG, RUNSTATS, CHECK)
  • 3. Log management and recovery
Topic 4: Security and Authorization17%- Access control
  • 1. Authorization IDs and roles
  • 2. RACF integration
  • 3. Audit and compliance
Topic 5: Installation, Migration and Configuration17%- Installation procedures
  • 1. Customization and setup
  • 2. Migration from earlier versions
  • 3. Function level management
Topic 6: Performance and Tuning17%- Monitoring and optimization
  • 1. Distributed access and DDF
  • 2. SQL tuning and access paths
  • 3. Buffer pools and memory management

IBM Db2 12 for z/OS Administrator Sample Questions:

Question #1

Which of the following subsystem parameters is only applicable in a data sharing environment?

  • A. REFSHAGE
  • B. RETLWAIT
  • C. TWOACTV
  • D. DSMAX
Reveal Solution  Discussion  0

Correct Answer: B  🗳️

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Question #2

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

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

Correct Answer: A  🗳️

Question #4

Which subsystem parameter specifies the action that DB2 takes when a problem occurs with the resource limit specification table during execution of a local, static SQL statement?

  • A. RLFERRD
  • B. RLFERRDSTC
  • C. RLFERR
  • D. RLFERRSTC
Reveal Solution  Discussion  0

Correct Answer: B  🗳️

Question #5

While processing a DB2 must-complete function, DB2 encountered an error during an attempt to access the required log data sets. Which of the following is TRUE?

  • A. DB2 will wait for a reply to message DSNJ154I before retrying the failed log-read request, or before abending
  • B. The affected page sets will be put into RESTP restrictive state
  • C. DB2 abends
  • D. The affected page sets will be put into REFP restrictive state
Reveal Solution  Discussion  0

Correct Answer: A  🗳️

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