IBM C2090-617 test questions for C2090-617 test engine (Jun 2016)

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Up to the minute C2090-617 Simple Questions Latest Practice Test Questions VCE PDF Dumps

Qustion No. 1

Upon system restart, DB2 encounters a Critical Log Read (CLR) error during the backout of an inflight UR and the restart fails. Only table space DB1.TS1 is affected by this UR. What can you do to enable DB2 to restart WITHOUT a conditional restart? 

A. Set DSNZPARM BACKODUR to 0 and LBACKOUT to YES. 

B. Issue the -START DB2 command with the LIGHT(YES) option. 

C. There is no way to restart without a conditional restart if you run into a Critical Log Read error. 

D. DEFER the restart for this table space using keyword DEFER ALL in the DSNZPARM module used during the restart. 

Answer: A 

Qustion No. 2

In all migration and installation modes of DB2 10, which data sets must be SMS-managed with the extended addressability attribute? 

A. All data sets in DB2. 

B. Only new DB2 catalog data sets. 

C. All DB2 catalog and directory data sets. 

D. New or changed DB2 catalog and directory data sets. 

Answer: D 

Qustion No. 3

If you are running DB2 in dual-BSDS mode and one of the BSDS's fails with an I/O error, which step is NOT necessary to recover the failed BSDS? 

A. Issue the -STOP DB2 command. 

B. Issue the -RECOVER BSDS command. 

C. Define a new BSDS with the same name as the original BSDS. 

D. Use access method services to rename or delete the failing BSDS. 

Answer: A 

Qustion No. 4

A stand-alone DB2 subsystem (not a member of a data sharing group) is suffering from high page latch wait times. Which area(s) do you need to investigate? 

A. Page latches are managed by buffer manager so you should analyze the buffer pools. 

B. This problem can only occur in a data sharing environment, so it does not apply here as this is a stand-alone DB2 system. 

C. Page latches are typically just a symptom of an underlying problem. You must determine what other things are delayed that can also lead to page latch wait problems. 

D. You need to identify which latch class is involved, by either looking at DB2 statistics information, or by starting more detailed performance traces (that include IFCID 51/52 (shared latch wait) and/or IFCID 56/57 (exclusive latch waits)) to determine why this is happening. 

Answer: C 

Qustion No. 5

What does the command -ALTER GROUPBUFFERPOOL(GBP1) RATIO(5.6) do? 

A. Changes the ratio of directory entries to the local cache entries (LCE). 

B. Changes the desired ratio of the number of lock entries to the number of data pages in the group buffer pool. 

C. Changes the desired ratio of the number of directory entries to the number of data pages in the group buffer pool. 

D. Changes the desired number of the data pages cast out to those that remain in the group buffer pool when the group buffer pool checkpoint occurs. 

Answer: C 

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