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, PrepPDF 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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  • Exam Code: C1000-078
  • Exam Name: IBM Db2 12 for z/OS Administrator
  • Certification Provider: IBM
  • Corresponding Certification: IBM Certified Administrator
  • Updated: Aug 15, 2026
  • No. of Questions: 62 Questions & Answers with Testing Engine
  • Download Limit: Unlimited

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IBM C1000-078 Exam Syllabus Topics:

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

IBM Db2 12 for z/OS Administrator Sample Questions:

1. When must the IRLM address space be active?

A) During start of DB2
B) After startup of DB2
C) At the first lock request
D) At the first concurrent lock situation


2. Which of the following catalog or directory table spaces maintain their recovery information in the DB2 log?

A) DSNDB01.SYSSPT01
B) DSNDB01.SYSLGRNX
C) DSNDB01.SYSUTILX
D) DSNDB06.SYSDDF


3. What action will enable most new functions in DB2 12?

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


4. DB2 just abended unexpectedly and needs to be restarted as quickly and consistently as possible.
Which of the following restart method do you pick?

A) Create a conditional restart record using option STARTRBA and then restart DB2.
B) Perform a cold start
C) Issue the-START DB2 command
D) Create a conditional restart record using option ENDRBA and then restart DB2


5. A down level page set is identified by the following error message:
DSNB232I UNEXPECTED DATA SET LEVEL ID ENCOUNTERED
Which of the following should be performed to correct the condition?

A) Replace the object with an appropriate data set at the proper level and confirm with DSN1PRNT of the header page
B) Execute a REPAIR DBD REBUILD on the object
C) Execute a REORG on the object in question
D) Stop the object, set the DLDFREQ subsystem parameter to OFF. and then restart the object in RW status


Solutions:

Question # 1
Answer: D
Question # 2
Answer: C
Question # 3
Answer: B
Question # 4
Answer: D
Question # 5
Answer: B

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