Exam Name: IBM Db2 12 for z/OS Administrator
Certification Provider: IBM
Corresponding Certification: IBM Certified Administrator
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Updated: Sep 23, 2026
No. of Questions: 62 Questions & Answers with Testing Engine
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IBM C1000-078 Exam Overview:
| Certification Vendor: | IBM |
|---|---|
| Exam Name: | IBM Db2 12 for z/OS Administrator |
| Exam Number: | C1000-078 |
| Exam Duration: | 90 minutes |
| Exam Price: | USD 200 |
| Certificate Validity Period: | No fixed expiration |
| Exam Format: | Multiple choice, Multiple response |
| Real Exam Qty: | 60-63 |
| Passing Score: | 700/1000 |
| Available Languages: | English |
| Recommended Training: | IBM Education - Db2 12 for z/OS Administration |
| Exam Registration: | Pearson VUE Registration |
| Sample Questions: | DOWNLOAD DEMO |
| Exam Way: | Online remote proctored or onsite at Pearson VUE test centers |
| Pre Condition: | No mandatory prerequisites; recommended: experience with z/OS, database concepts, Db2 basics and hands-on administration |
| Official Syllabus URL: | https://www.ibm.com/certify/exam/C1000-078 |
IBM C1000-078 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Operation, Maintenance and Recovery | 17% | - Daily operations
|
| Database Design and Implementation | 17% | - Object creation and management
|
| Db2 12 for z/OS Fundamentals and Environment | 15% | - Architecture and components
|
| Security and Authorization | 17% | - Access control
|
| Installation, Migration and Configuration | 17% | - Installation procedures
|
| Performance and Tuning | 17% | - Monitoring and optimization
|
IBM Db2 12 for z/OS Administrator Exam — Your Questions Answered
Three versions of the same study materials, each with its own character: a printable, expert-prepared PDF with free demo download and instant access; a Desktop Test Engine for Windows with customizable simulation and timed modes that works offline; and an Online Test Engine for any browser on Windows, Mac, Android, and iOS with test history and performance review. All 62 practice questions are identical across versions. Every purchase includes 365 days of free updates, a 50% renewal discount afterward, and unlimited computer installations.
No mandatory prerequisites; recommended: experience with z/OS, database concepts, Db2 basics and hands-on administration Since requirements change over time, confirm the latest on the official IBM exam page before scheduling.
The official IBM Db2 12 for z/OS Administrator outline defines 6 domains. The leading three are Security and Authorization (17%), Installation, Migration and Configuration (17%), and Database Design and Implementation (17%). The full list is in the topics section above, and Prep4away's 62 practice questions cover each one.
IBM recommends these training resources for the IBM Db2 12 for z/OS Administrator exam:
Follow the training with steady self-testing — the 62 practice questions from Prep4away help you apply theory and fill any gaps the training leaves.
The C1000-078 exam is a IBM certification exam validating the IBM Db2 12 for z/OS Administrator syllabus shown above. Candidates in 2026 prepare for it with Prep4away's 62 practice questions, available as a printable PDF, a Windows Desktop Test Engine, and an Online Test Engine — three versions of the same materials.
The IBM Db2 12 for z/OS Administrator exam requires 700/1000 to pass, and registration costs USD 200. A failed attempt means paying the same fee again — a readiness check with the Prep4away engines before booking is the cheaper option.
Prep4away issues a full refund if you take the IBM Db2 12 for z/OS Administrator exam within 60 days of purchase and do not pass. The policy does not apply if the exam is taken within 3 days of purchase, if the exam was never actually taken, or to free materials or expired orders, and the candidate name must match the payer name. Submit a scan of your enrollment slip and the official Score Report PDF within 2 days of the exam; claims are processed within 7 days. Alternatively, exchange for two free exam products of equal value and keep your original update service. Orders arrive by email within 1 minute — contact support if nothing arrives within 2 hours.
Online remote proctored or onsite at Pearson VUE test centers Register for the IBM Db2 12 for z/OS Administrator exam through these official channels:
After booking, Prep4away delivers your practice questions within 1 minute — preparation starts the same day.
The IBM Db2 12 for z/OS Administrator exam contains 60-63 to complete within 90 minutes. Timed simulation in the Prep4away Desktop Test Engine teaches that rhythm before exam day does.
IBM Db2 12 for z/OS Administrator Sample Questions:
For a general application performance problem, which set of documentation would be most useful for diagnosis?
- A. SVC Dump
- B. DIAGNOSE MEPL utility
- C. SMF accounting and statistics traces
- D. RMF Monitor
Correct Answer: D 🗳️
Considering the following command:
-CANCEL THREAD {*) FORCE
In which of the following situations can it be used?
- A. If the CANCEL THREAD command without the FORCE option does not terminate the thread
- B. If you are terminating a distributed thread that is part of a global transaction
- C. On local threads that are not in DB2
- D. On application threads that update NOT LOGGED table spaces
Correct Answer: A 🗳️
The amount of memory taken up by the local dynamic statement cache is extremely high. How can this be reduced?
- A. Reduce the value specified for subsystem parameter EDMSTMTC
- B. Reduce the value specified for subsystem parameter MAXKEEPD
- C. Reduce the value specified for subsystem parameter MAX_IN_MEMORY
- D. Bind more packages using BIND option KEEPDYNAMIC(YES)
Correct Answer: D 🗳️
Az/OS system has some storage constraints. The results of-DIS
STATS(INDEXMEMORYUSAGE) shows that a huge amount of storage is used for the fast index traversal processes. What can be done to avoid this storage usage?
- A. Reorganize the listed indexes
- B. Issue SQL statement ALTER INDEX ixname REGENERATE USING APPLICATION COMPATIBILITY V12R1M500 for the listed indexes
- C. Set subsystem parameter INDEX_MEMORY_CONTROL to DISABLE
- D. Set subsystem parameter INDEX_CLEANUP_THREADS to 0
Correct Answer: D 🗳️
Beginning with function level V12R1M500. what would be the maximum data set size of an active log?
- A. 768 GB
- B. 123 GB
- C. 4 GB
- D. 255 GB
Correct Answer: D 🗳️
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