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IBM C1000-078 certification exam covers a range of topics related to IBM Db2 12 for z/OS administration, including database design and implementation, security and authorization, performance tuning, backup and recovery, and system management. C1000-078 exam consists of 60 multiple-choice questions, and candidates have 90 minutes to complete it. The passing score for the exam is 62 percent.
IBM C1000-078 (IBM Db2 12 for z/OS Administrator) Certification Exam covers a wide range of topics related to the administration of IBM's Db2 12 for z/OS database management system. These topics include the installation and configuration of Db2 12, performance tuning, security, backup and recovery, and database management. C1000-078 exam is designed to test the candidate's knowledge and understanding of these topics at a professional level.
NEW QUESTION # 15
Which DB2 command is used to force a physical open of a table space, index space, or partition, or remove the GBP-dependent status for a table space, index space, or partition?
- A. -ACCESS DATABASE
- B. -DISPLAY DATABASE
- C. -STOP DATABASE
- D. -START DATABASE
Answer: A
Explanation:
The Db2 command ACCESS DATABASE forces a physical open of a table space, index space, or partition, or removes the GBP-dependent status for a table space, index space, or partition, or externalizes the real-time statistics and optimizer statistics recommendations from in-memory blocks to the appropriate catalog tables. The MODE keyword specifies the desired action.
NEW QUESTION # 16
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. Perform a cold start
- B. Create a conditional restart record using option ENDRBA and then restart DB2
- C. Issue the-START DB2 command
- D. Create a conditional restart record using option STARTRBA and then restart DB2.
Answer: B
NEW QUESTION # 17
Which one of the following modules, or its equivalent name, is optional for a successful DB2 start?
- A. The DB2 connection authorization exit routine (DSN3@ATH)
- B. The application default load module (DSNHDECP)
- C. The user version of the access control authorization exit routine (DSNX@XAC)
- D. The default load module (DSNZPARM)
Answer: D
NEW QUESTION # 18
Which of the following subsystem parameters is only applicable in a data sharing environment?
- A. TWOACTV
- B. DSMAX
- C. RETLWAIT
- D. REFSHAGE
Answer: C
Explanation:
This value is only significant in a data sharing environment. It indicates how long a transaction should wait for a lock on a resource if another DB2 in the data sharing group has failed and is holding an incompatible lock on that resource. Locks held by failed DB2 members are called retained locks. This value is a multiplier that is applied to the connection's normal timeout value.
For example, if the retained lock multiplier is 2, then the timeout period for a call attachment connection that is waiting for a retained lock is twice the normal CAF timeout period. The default is 0, meaning applications do not wait for incompatible retained locks, the lock request is immediately rejected and the application receives a "resource unavailable" SQLCODE.
Install parameter RETAINED LOCK TIMEOUT on panel DSNTIPI, or ZPARM RETLWAIT in DSN6SPRM. This value is only significant in a data sharing environment. It indicates how long a transaction should wait for a lock on a resource if another DB2 in the data sharing group has failed and is holding an incompatible lock on that resource. Locks held by failed DB2 members are called retained locks. This value is a multiplier that is applied to the connection's normal timeout value. For example, if the retained lock multiplier is 2, then the timeout period for a call attachment connection that is waiting for a retained lock is twice the normal CAF timeout period.
The default is 0, meaning applications do not wait for incompatible retained locks, the lock request is immediately rejected and the application receives a "resource unavailable" SQLCODE.
NEW QUESTION # 19
Which authority prevents unintended access to user data but allows installation or migration of a DB2 subsystem?
- A. SYSADM
- B. SYSCTRL
- C. Installation SYSOPR
- D. Installation SYSADM
Answer: C
Explanation:
You are not required to use the SYSADM or installation SYSADM authority to install or migrate a Db2 subsystem. Instead, you can use the installation SYSOPR authority to perform all installation or migration tasks while preventing unintended access to user data.
NEW QUESTION # 20
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 size of the lock structure
- D. Increase the proportional size of the lock table
- E. Use LOCKSIZE PAGE and MAXROWS 1
Answer: B,C
NEW QUESTION # 21
To initiate a system checkpoint without modifying the current LOGLOAD value, which of the following should be issued?
- A. -SET LOG BOTH
- B. -SET LOG BOTH CHKTIME(10) LOGLOAD(500000)
- C. -SETLOGLOGLOAD(O)
- D. -SET LOG RESUME
Answer: C
NEW QUESTION # 22
When using a persistent thread bound with RELEASE(DEALLOCATE), which subsystem parameter setting will permit a REBIND PACKAGE at a COMMIT or ROLLBACK in this thread?
- A. APPLCOMPAT=YES
- B. BINDNV=BIND
- C. PKGREL COMMIT=YES
- D. ABIND=COEXIST
Answer: A
NEW QUESTION # 23
Considering the following command:
-CANCEL THREAD {*) FORCE
In which of the following situations can it be used?
- A. On application threads that update NOT LOGGED table spaces
- B. On local threads that are not in DB2
- C. If you are terminating a distributed thread that is part of a global transaction
- D. If the CANCEL THREAD command without the FORCE option does not terminate the thread
Answer: D
NEW QUESTION # 24
Which DB2 command is used to turn on the recording of CPU usage information for a package?
- A. -START RLIMIT
- B. -START TRACE
- C. -START PROFILE
- D. -START DYNQUERYCAPTURE
Answer: B
NEW QUESTION # 25
Which stored procedures need to be set up in order to register an XML schema?
- A. XSR_VALIDATE and XSR_ADDSCHEMADOC
- B. XSR ADDSCHEMADOCandXSR COMPLETE
- C. XSR_REGISTERandXSR_COMPLETE
- D. XSR_VALI DATE and XSR_COMPLETE
Answer: C
Explanation:
When a database is created, the stored procedures used to register XML schemas are also created. To register XML schemas through the stored procedure method, invoke the XSR_REGISTER, XSR_ADDSCHEMADOC and XSR_COMPLETE stored procedures with the CALL statement.
NEW QUESTION # 26
In order to install the RACF access control module for a DB2 subsystem, to which of the following modules should DSNTIJEX refer?
- A. DSNXSXAC
- B. DSN3@ATH
- C. DSNXRXAC
- D. DSN3@SGN
Answer: C
NEW QUESTION # 27
What resource is used to communicate BSDS and log data set names between DB2 members in a data sharing group?
- A. SCA
- B. DB2log
- C. DB2 directory
- D. Lock structure
Answer: A
NEW QUESTION # 28
Which of the following is TRUE about the SYSCTRL authority?
- A. It is designed to be an administrator in a system with sensitive data
- B. It is designed so group privileges cannot be granted to SYSCTRL
- C. It is designed to allow access to all data directly in DB2
- D. It is designed not to be a part of the administrative authorizations
Answer: A
Explanation:
The SYSCTRL authority is designed for administering a system that contains sensitive data. With the SYSCTRL authority, you have nearly complete control of the DB2?subsystem. However, you cannot access user data directly unless you are explicitly granted the privileges to do so.
NEW QUESTION # 29
Which of the following is an advantage of role-based security?
- A. If you DROP a role that owns objects, those objects will also be dropped
- B. Within a trusted connection. DB2 allows multiple roles to be associated with any given thread at any point in time
- C. Roles are used to provide a more flexible technique than security group definitions or userids in assigning and controlling authorization
- D. If a role creates an object, a user requires no additional privileges to access the object if the access uses that role as the object owner in the SQL statement
Answer: A
NEW QUESTION # 30
Which of the following utilities would produce information needed to identify UNDO information for a transaction?
- A. DSNJU004
- B. DSN1LOGP
- C. DSNJLOGF
- D. DSNJU003
Answer: D
NEW QUESTION # 31
Which of the following migration steps is optional?
- A. Tailor the DB2 catalog
- B. Define DB2 12 to z/OS
- C. Define DB2 initialization parameters: DSNTIJUZ
- D. Verify the integrity of the DB2 catalog and directory
Answer: D
NEW QUESTION # 32
Which of the following catalog or directory table spaces maintain their recovery information in the DB2 log?
- A. DSNDB01.SYSSPT01
- B. DSNDB01.SYSLGRNX
- C. DSNDB06.SYSDDF
- D. DSNDB01.SYSUTILX
Answer: D
NEW QUESTION # 33
Considering the following command:
-STOP DDF MODE(SUSPEND)
Which of the following, pertaining to DDF connections in a two-way data sharing environment, is TRUE?
- A. It terminates currently executing distributed threads on the current member of the data sharing group
- B. It suspends DDF threads by preventing the outbound DDF work
- C. It stops the DDF on the current member of the data sharing group if DDF has already been started
- D. It stops the DDF on all the members of the data sharing group where DDF has already been started
Answer: B
NEW QUESTION # 34
In which phase of SMP/E processing is the DB2 software installed into the target libraries?
- A. ACCEPT
- B. RECEIVE
- C. APPLY CHECK
- D. APPLY
Answer: A
NEW QUESTION # 35
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IBM C1000-078 certification exam is designed to test the candidate's knowledge and skills in IBM Db2 12 for z/OS administration. C1000-078 exam is intended for individuals who have experience in administering IBM Db2 12 for z/OS systems and who wish to validate their skills and knowledge in this area. C1000-078 exam is also suitable for those who are planning to pursue a career in IBM Db2 12 for z/OS administration.
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