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質問 1：
Your administrative scheduler shows message DSNA679I indicating that one or both copies of your task lists is not accessible or is corrupted.
Your analysis shows that only the VSAM file is corrupt, but the ADMIN_TASKS table is still operational.
Which statement describes how to correct this situation?
A. Create an empty version of the VSAM task list and use DB2 command -RECOVER TASKLIST to recover the content of the ADMIN_TASKS table.
B. No manual interaction is needed as long as the ADMIN_TASKS table is still accessible.
C. Create an empty version of the VSAM task list and use REPRO utility to copy the contents of the VSAM cluster containing the ADMIN_TASKS table.
D. Create an empty version of the VSAM task list and let DB2 perform an autonomic recovery using the content of the ADMIN_TASKS table.
正解：D
質問 2：
All members of a data sharing group can be accessed by the group attachment name GRP. Two members (DB2A and DB2B) of the data sharing group are up on the same z/OS and you run a batch job on this z/OS with the following DSN command: DSN SYSTEM(GRP). Which statement is true?
A. The connection is dependent on the definition in SYS1.PARMLIB member IEFSSNxx.
B. Your batch job will randomly be connected to either DB2A or DB2B.
C. Your batch job will always be connected to DB2
D. Your batch job will always be connected to DB2
正解：B
質問 3：
DB2 traces have their own associated performance overhead. Which type of trace may require up to 100% CPU overhead?
A. statistics
B. audit
C. performance
D. accounting
正解：C
質問 4：
Which two actions must be performed for a data sharing traditional image copy disaster recovery? (Choose two.)
A. Use the SETXCF FORCE command to delete DB2 CF structures.
B. Use DEFER=ALL in the system parameters during the first restart.
C. Start DB2 using the LIGHT(YES) keyword.
D. Modify the IRLM start up proc to specify SCOPE=LOCAL.
E. Use STARTRBA=ENDRBA for the conditional restart control record.
正解：A,B
質問 5：
Which macro specifies the class of SYSGEN tobe done (e.g., "ALL", "MODBLKS")?
A. IMSGEN
B. IMSCTF
C. IMSCTRL
D. FPCTRL
正解：C
質問 6：
Click the Exhibit button.
Referring to the exhibit, which statement related to DB2 storage usage is correct?
A. DB2 statistics do not provide accurate information about the real storage usage. The only reliable source of information are RMF statistics.
B. The DBM1 address space does not seem to do any paging, but the MSTR address space seems to suffer from paging.
C. The system is over committed on virtual storage as it has more than 2 GB of real storage allocated in the DBM1 address space.
D. The system is doing ok on virtual storage but is clearly short on real storage because the total amount of real storage is more than 2 G
正解：B
Your administrative scheduler shows message DSNA679I indicating that one or both copies of your task lists is not accessible or is corrupted.
Your analysis shows that only the VSAM file is corrupt, but the ADMIN_TASKS table is still operational.
Which statement describes how to correct this situation?
A. Create an empty version of the VSAM task list and use DB2 command -RECOVER TASKLIST to recover the content of the ADMIN_TASKS table.
B. No manual interaction is needed as long as the ADMIN_TASKS table is still accessible.
C. Create an empty version of the VSAM task list and use REPRO utility to copy the contents of the VSAM cluster containing the ADMIN_TASKS table.
D. Create an empty version of the VSAM task list and let DB2 perform an autonomic recovery using the content of the ADMIN_TASKS table.
正解：D
質問 2：
All members of a data sharing group can be accessed by the group attachment name GRP. Two members (DB2A and DB2B) of the data sharing group are up on the same z/OS and you run a batch job on this z/OS with the following DSN command: DSN SYSTEM(GRP). Which statement is true?
A. The connection is dependent on the definition in SYS1.PARMLIB member IEFSSNxx.
B. Your batch job will randomly be connected to either DB2A or DB2B.
C. Your batch job will always be connected to DB2
D. Your batch job will always be connected to DB2
正解：B
質問 3：
DB2 traces have their own associated performance overhead. Which type of trace may require up to 100% CPU overhead?
A. statistics
B. audit
C. performance
D. accounting
正解：C
質問 4：
Which two actions must be performed for a data sharing traditional image copy disaster recovery? (Choose two.)
A. Use the SETXCF FORCE command to delete DB2 CF structures.
B. Use DEFER=ALL in the system parameters during the first restart.
C. Start DB2 using the LIGHT(YES) keyword.
D. Modify the IRLM start up proc to specify SCOPE=LOCAL.
E. Use STARTRBA=ENDRBA for the conditional restart control record.
正解：A,B
質問 5：
Which macro specifies the class of SYSGEN tobe done (e.g., "ALL", "MODBLKS")?
A. IMSGEN
B. IMSCTF
C. IMSCTRL
D. FPCTRL
正解：C
質問 6：
Click the Exhibit button.
Referring to the exhibit, which statement related to DB2 storage usage is correct?
A. DB2 statistics do not provide accurate information about the real storage usage. The only reliable source of information are RMF statistics.
B. The DBM1 address space does not seem to do any paging, but the MSTR address space seems to suffer from paging.
C. The system is over committed on virtual storage as it has more than 2 GB of real storage allocated in the DBM1 address space.
D. The system is doing ok on virtual storage but is clearly short on real storage because the total amount of real storage is more than 2 G
正解：B
Ogawa -
一通り読んで、模擬を解いて、
この一冊で試験に合格しました。内容は充実、読みやすい、C2090-549の問題集一週間だけかけましたが無事合格ぅぅ!!