c2090-612.examcollection.premium.exam be specified for capturing changes to an xml object. b. to...

C2090-612.Examcollection.Premium.Exam.108q

Number: C2090-612Passing Score: 800Time Limit: 120 minFile Version: 29.5

http://www.gratisexam.com/

Exam Code: C2090-612

Exam Name: DB2 10 DBA for z/OS

Braindumps

QUESTION 1Workload Manager (WLM) manages how many concurrent stored procedures can run in an address space andthe number of concurrent stored procedures in an address space cannot exceed the value of the NUMTCBparameter. Which statement about the value of NUMTCB is correct?

A. NUMTCB parameter must be set to 1 for Java stored procedures.B. NUMTCB parameter must be set to 1 for REXX stored procedures.C. NUMTCB parameter can be a value greater than 1 for native SQL stored procedures.D. NUMTCB parameter can be a value greater than 1 when a stored procedure invokes DB2 utilities.

Correct Answer: BSection: (none)Explanation

Explanation/Reference:Explanation:

QUESTION 2If a single row of the PLAN_TABLE has a 'Y' value in more than one of the sort composite columns, what isindicated?

A. The next sort step will perform two sorts.B. There are multiple sorts in the plan step.C. One sort in the plan step will accomplish two tasks.D. Two sorts are performed on the new table of a star join.

Correct Answer: CSection: (none)Explanation


QUESTION 3The EXPLAIN STMTCACHE ALL statement provides information about SQL tuning. Which information is partof the DSN_STATEMENT_CACHE_TABLE?

A. Filter factor information.B. Stage 1 and stage 2 information.C. Number of columns used in an index.D. Number of times an SQL statement is executed.

Correct Answer: DSection: (none)Explanation


QUESTION 4Which two of the following DB2 performance features will ignore clustering in favor of faster insertperformance? (Choose two.)

A. Append

B. Inline LOBsC. Member clusterD. Volatile tableE. Include columns

Correct Answer: ACSection: (none)Explanation


QUESTION 5What trace class will show deadlock information?

A. Audit class 3.B. Statistic class 3.C. Accounting class 1.D. Performance class 8.



QUESTION 6When DB2 detects at runtime requiring a large amount of data to be read, which prefetch method is used moreoften?


A. List prefetchB. Dynamic prefetchC. Sequential prefetchD. Skip sequential prefetch



QUESTION 7In order to retain an access path across a rebind which of the following commands could be used?

A. BIND PLAN

B. REBIND PACKAGE(PK1) REOPT(ONCE)C. BIND PACKAGE (PK1) EXPLAIN(YES)D. REBIND PACKAGE (PK1) PLANMGMT(BASIC)



QUESTION 8The available window to reorganize table spaces is being reduced. What data can provide information to allowfor a priority list of candidate table spaces for reorganization based on recent activity with no recent RUNSTATSexecution?

A. SYSIBM.SYSCOPYB. SYSIBM.SYSTABLESC. SYSIBM.SYSINDEXESD. SYSIBM.SYSTABLESPACESTATS



QUESTION 9What is a consideration when specifying DATA CAPTURE CHANGES?

A. Can be specified for capturing changes to an XML object.B. To minimize logging, specify NOT LOGGED when DATA CAPTURE CHANGES is specified.C. REFRESH TABLE statement is not allowed with a table defined with DATA CAPTURE CHANGES.D. You cannot turn on DATA CAPTURE CHANGES if the table space is in advisory REORG- pending.



QUESTION 10In using plan stability, what storage space requirement should be of carefully monitored?

A. MINSTORB. DSNDB07C. DSNDB01.SPT01D. DSN_STATEMNT_TABLE



QUESTION 11What two parameters allow DB2 to keep a copy of a dynamically prepared statement in the cache?

A. KEEPDYNAMIC(YES) and CACHEDYN=YESB. KEEPDYNAMIC(NO) and CACHEDYN=NOC. KEEPDYNAMIC(NO) and REOPT(ALWAYS)D. KEEPDYNAMIC(YES) and REOPT(ALWAYS)

Correct Answer: ASection: (none)Explanation


QUESTION 12What START TRACE command provides detailed lock suspend and lock contention trace information?

A. START TRACE(AUDIT)B. START TRACE(STATS) CLASS(1)C. START TRACE(PERFM) CLASS(30) IFCID(44,45)D. START TRACE(ACCTG) CLASS(1,2,3) DEST(SMF)



QUESTION 13What would be a reason for altering the clustering index of a table?

A. To increase free space.B. Because the clustering index has to match the primary index.C. To choose a clustering index to favor batch sequential processing.D. To choose a clustering index to promote sequential inserts at the end of the table space.



QUESTION 14What is the DSNZPARM that determines the maximum amount of temporary storage in the work file data basefor a single user at any given time?

A. MAXRBLKB. MAXDBATC. MAXKEEPD

D. MAXTEMPS



QUESTION 15In the CFRM policy, what is the purpose of the PREFLIST?

A. To identify the size of the structure.B. To identify all the DB2 members in the group.C. To identify the preferences for DB2 restart in the event of a disconnection.D. To identify the preferences for structure rebuild/reallocation during a coupling facility failure.



QUESTION 16What DB2 command when issued displays what migration mode the catalog is in?

A. DSNC DISPLAYB. DISPLAY GROUPC. MODIFY irlmproc,STATUSD. DISPLAY DATABASE (DSNDB06)



QUESTION 17Which authority level allows a user to run utilities that change the data in an application database?

A. DBCTRLB. SYSOPRC. DBMAINTD. INSTALL SYSOPR



QUESTION 18Which trace gives information about frequent log space shortages?

A. Audit trace class(8)B. Statistics trace class(3)C. Accounting trace class(10)D. Performance trace class(4)



QUESTION 19When creating a stored procedure that will access non DB2 resources using the authorization ID of the userinvoking the stored procedure, what value must the SECURITY clause specify?

A. DB2B. RACFC. USERD. DEFINER



QUESTION 20Which connection type can exploit trusted connections?

A. IMSB. CAFC. CICSD. RRSAF



QUESTION 21What should be implemented in order to audit all the activity of the install SYSADM?

A. DATA CAPTURE CHANGES should be set on all tables.B. A DB2 audit policy should be established, identifying the SYSADM ID to be audited.C. The DB2 authorization exit should be modified to convert the install SYSADM ID to another ID.D. Nothing can be done, the install SYSADM has the highest authority and is not controlled or monitored.



QUESTION 22Which attribute(s) determine the absolute maximum number of partitions for a partition-by-growth table space?

A. MAXPARTITIONSB. MAXPARTITIONS, DSSIZEC. MAXPARTITIONS, page sizeD. MAXPARTITIONS, DSSIZE, page size



QUESTION 23Which ALTER TABLE statement will generate a new table space version?

A. ALTER TABLE ... ADD PARTITION ...B. ALTER TABLE ... ADD COLUMN COL2 ...C. ALTER TABLE ... DATA CAPTURE CHANGES ...D. Altering an already existing VARCHAR column on the table to shorten its maximum length.



QUESTION 24Given that the following table (TB1) has been created with this statement: CREATE TABLE TB1 (COLASMALLINT NOT NULL WITH DEFAULT ,COLB CHAR(5) NOT NULL WITH DEFAULT) IN DB1.TS1; Which ofthe following statements, which alter a table (TB1), will NOT invalidate all the plans, packages and dynamiccache statements associated with the table TB1?

A. ALTER TABLE TB1 AUDIT CHANGES;B. ALTER TABLE TB1 ADD COLUMN COLC DATE;C. ALTER TABLE TB1 RENAME COLUMN COLA TO COLC;D. ALTER TABLE TB1 ADD COLUMN COLC CHAR(8) NOT NULL WITH DEFAULT AS SECURITY LABEL;



QUESTION 25When defining a foreign key on a table, which statement is true?

A. It is not mandatory to have an index on the foreign key columns but it can help to avoid locking problems.

B. There is no need to define an index on the foreign key columns as DB2 cannot use an index for foreign keychecking.

C. It is not mandatory to have an index on the foreign key columns but it can help performance when you insertrows into this table.

D. You must define an index on the foreign key columns where the index columns are the same as the foreignkey columns to guaranteeuniqueness of the foreign key.



QUESTION 26If a ROWID column is defined on a table as GENERATED BY DEFAULT, what must also be done?

A. Nothing because DB2 will control the values.B. A unique index must be defined on the ROWID column.C. An identity column must also be created to control uniqueness.D. Extra space must be allocated for an overflow area in the table space.



QUESTION 27On what type of index would an ALTER INDEX ADD COLUMN be allowed?

A. An XML index.B. An auxiliary index.C. A user defined catalog index.D. An index defined with BUSINESS_TIME WITHOUT OVERLAPS.



QUESTION 28In a normalized design, in third normal form, the entity defined in the logical design is often transformed in thephysical design to which of the following?

A. IndexB. TableC. SchemaD. Database

Correct Answer: BSection: (none)

Explanation


QUESTION 29If SEGSIZE 64 and MAXPARTITIONS 10 are specified in a CREATE TABLESPACE statement, what type oftable space is created?

A. LOB table space.B. Segmented table space.C. Range-partitioned table space.D. Partition-by-growth table space.



QUESTION 30For which table type could you specify ALTER TABLE tb1 DATA CAPTURE CHANGES?

A. Catalog tablesB. Directory tablesC. Auxiliary tablesD. Declared global temporary tables



QUESTION 31When a table space defined as both partitioned-by-growth (PBG) and MEMBER CLUSTER YES is altered toMEMBER CLUSTER NO by the ALTER TABLESPACE command. Which statement is correct?

A. DB2 does not allow the command.B. DB2 applies the changes immediately.C. DB2 allows the command only if the table is empty.D. DB2 places the table space in AREOR (Advisory Reorg).



QUESTION 32Given the following statements have been run successfully and the buffer pools BP1 and BP2 both have thesame page size: CREATE TABLESPACE TS1 IN DB1 DEFINE YES BUFFERPOOL BP1 MAXPARTITIONS 15MEMBER CLUSTER ; CREATE TABLE TB1 (COL1 INT NOT NULL WITH DEFAULT) IN DB1.TS1 ; COMMIT ;

ALTER TABLESPACE TS1 BUFFERPOOL BP2 MAXPARTITIONS 20 ; What is the next logical step in thesequence to CREATE an index IX1 on COL1 on TB1?

A. ALTER TABLESPACE TS1MAXPARTITIONS 15;B. COMMIT;C. CREATE INDEX IX1 ON TB1(COL1);D. REORG TABLESPACE TS1;



QUESTION 33The following DDL statements are executed to create the following objects: CREATE TABLESPACE TS1BUFFERPOOL BP0 IN DB1; CREATE TABLE USER1.TB1 ( COL1 INTEGER, COL2 VARCHAR(10) ) INDB1.TS1; CREATE INDEX USER1.IX1 ON USER1.TB1 ( COL2 ) BUFFERPOOL BP0 COPY YES; Next, thefollowing ALTER statements are done (in order): 1) ALTER TABLESPACE DB1.TS1 BUFFERPOOL BP8K0MAXPARTITIONS 20; 2) ALTER TABLESPACE DB1.TS1 SEGSIZE 64; 3) ALTER INDEX USER1.IX1BUFFERPOOL BP16K0; Which of the following will materialize all of the changes with the least amount ofwork?

A. Nothing needs to be done.B. REORG INDEX USER1.IX1 SHRLEVEL CHANGEC. REORG TABLESPACE DB1.TS1 SHRLEVEL REFERENCED. REORG TABLESPACE DB1.TS1 SHRLEVEL REFERENCEREORG INDEX USER1.IX1 SHRLEVEL

CHANGE



QUESTION 34A unique index (IX1) currently exists on COL1, COL2 and COL3 of the table. There is a request to be able tohave an index on these three columns and COL4 to achieve the optimal access path. The addition of COL4 willnot support the uniqueness requirement of the index. In order to add this column to the index while stillpreserving the unique constraint of the first three columns, which option should be taken?

A. Add a new index on COL4.B. Perform a ALTER INDEX IX1 ADD COLUMN (COL4).C. Add a new UNIQUE index on COL1, COL2, COL3, COL4.D. Perform an ALTER INDEX IX1 ADD INCLUDE COLUMN (COL4).



QUESTION 35

Which stored procedures need to be set up properly in order to register an XML schema?

A. XSR_ADD_SCHEMAB. XSR_REGISTER and XSR_COMPLETEC. XSR_REGISTER, XSR_VALIDATE and XSR_COMPLETED. The commands to register a XML schema do not invoke stored procedures.



QUESTION 36You have to design a table and application layout, in which automatic number generation is used. Theapplication also wants to assign database generated numbers in an SQL UPDATE statement. Which statementis true?

A. Neither Identity nor Sequence can deliver this functionality.B. Identity can deliver this functionality, but Sequence cannot.C. Identity cannot deliver this functionality, but Sequence can.D. Identity and Sequence can both deliver this functionality.



QUESTION 37Which statement is true about table check constraints?

A. Only one constraint per column is allowed.B. The LOAD utility cannot enforce the constraint.C. A constraint placed on a table does not apply to a view defined on the table.D. A row meets the requirement of the constraint if the condition evaluates to true or unknown.



QUESTION 38You have to design a numeric column, which is also the primary key. The column should cover large (i.e.,123456789012345678) numbers. Which column data definition covers the requirements?

A. BIGINTB. INTEGERC. DECFLOAT (34)D. DECIMAL (31,18)



QUESTION 39The threads initiated by the distributed transactions are no longer active in DB2, however this situation hascaused -904 resource unavailable condition for the other executing threads in DB2. Which command couldassist in identifying the remote locations from where such threads were triggered?

A. -DISPLAY LOCATION(*) DETAILB. -DIS THD(*) TYPE(INDOUBT) LOCATION(*) DETAILC. -DIS THD(*) TYPE(INACTIVE) LOCATION(*) DETAILD. -DIS THD(*) TYPE(POSTPONED) LOCATION(*) DETAIL



QUESTION 40Which DB2 online utility job output provides you with information about the BACKUP SYSTEM history?

A. DSNJU003B. DSNJU004C. DIAGNOSED. REPORT with RECOVERY option



QUESTION 41Objects DB1.TS1 .... DB1.TS10 are in copy pending status. Which of the following actions removes the copypending state AND creates an entry in SYSIBM.SYSCOPY?

A. Run the BACKUP SYSTEM utility.B. Run the REPAIR SET NOCOPYPEND utility.C. Run the COPY TABLESPACE utility with option FULL YES for each of the 10 table spaces.D. Issue command -START DB(DB1) SP(TSx) ACCESS(FORCE) for each of the 10 table spaces where x = 1

- 10.



QUESTION 42During a recovery of a table space in a data sharing environment, what value is used to coordinate the logrecords across the DB2 members?

A. RBAB. LRSNC. ROWIDD. SYSPITRT



QUESTION 43When planning for backup/recovery (including disaster recovery), which statement is correct?

A. When you remote copy everything (PPRC, XRC) there is no need to take DB2 image copies anymore.B. As data is shared in a data sharing group, disaster recovery in a data sharing environment is identical to a

non-data sharing environment.C. System level backups (BACKUP SYSTEM) can be used for both system wide restore on a remote site, as

well as the recovery of individualobjects locally.D. When you want to create a consistent backup point, you must use the -SET LOG SUSPEND command to

freeze all activity, and then take yourbackups with whatever technology you prefer.



QUESTION 44How can you find out which external and native stored procedures are active in the system?

A. Use the -DIS PROCEDURE(*.*) command.B. Use the -DIS THREAD(*) TYPE(PROC) command.C. There is no WLM or DB2 command to obtain this information.D. You can only obtain this information indirectly if you know the WLM application environment by issuing the D

WLM,APPLENV=xxxx command.



QUESTION 45DB2 does not take system checkpoints in which circumstance?

A. During an application rollback.B. At the end of a successful restart.

C. When switching from one active log data set to another.D. When a specified number of log records are created or after a specified number of minutes, whichever

occurs first.



QUESTION 46What is the result of the command -RECOVER POSTPONED CANCEL if the postponed-abort thread that youcancel was in the middle of a series of updates when DB2 abended?

A. The underlying page sets are stopped.B. The underlying page sets are placed in REFP restrictive state.C. The underlying page sets are placed in REORP restrictive state.D. No restrictive state is set. It is your responsibility to ensure data consistency.



QUESTION 47The UNLOAD utility can be used to do which of the following functions?

A. Unload compressed data.B. Unload rows from a FlashCopy image copy.C. Unload data from an image copy of an index.D. Unload rows from an image copy that has rows from a dropped table.



QUESTION 48A table space is in AREO*. What does this status mean?

A. A full image copy of the table space must be taken.B. The table space should be reorganized for optimal performance.C. A START command must be issued to remove it from the pending status.D. The table space must be reorganized to materialize all pending changes.


Explanation/Reference:

Explanation:

QUESTION 49For monitoring space growth over time, which statistics should NOT be considered?

A. SYSIBM.SYSTABLEPART_HISTCARDF, SPACEFSYSIBM.SYSINDEXPART_HISTCARDF, SPACEFB. SYSIBM.SYSTABLEPARTCARDF, SPACEFSYSIBM.SYSINDEXPARTCARDF, SPACEFC. SYSIBM.SYSTABLESPACEDSSIZE, AVGROWLENSYSIBM.SYSINDEXESPIECESIZE, AVGKEYLEND. SYSIBM.SYSTABLESPACESTATSSPACESYSIBM.SYSINDEXSPACESTATSSPACE



QUESTION 50Which statement is NOT true?

A. REORG table space to materialize pending definition changes for a table space.B. REORG with SHRLEVEL CHANGE would automatically detect which threads need to be canceled before

switch phase.C. DSNACCOX can be used for collecting data for table space and index space for getting recommendations

when to run REORG, RUNSTATS orCOPY.D. REORG of index space could be eliminated because the list prefetch of index leaf pages in DB2 V10 is

based on non-leaf page information.



QUESTION 51Which statement applies to the command STOP DB(MYDB*) SP(*) AT(COMMIT)?

A. Does not apply to threads that were defined with RELEASE(COMMIT).B. Does not apply to threads that were defined with RELEASE(DEALLOCATE).C. Applies to both RELEASE(COMMIT) and RELEASE(DEALLOCATE) at the next COMMIT point.D. Applies to RELEASE(COMMIT) at the next COMMIT point and to RELEASE(DEALLOCATE) at thread end.



QUESTION 52In determining whether a REORG on an index space would improve performance, which two of the followingcolumns would NOT be needed? (Choose two.)

A. Column CLUSTERING in SYSIBM.SYSINDEXESB. Column LEAFDIST in SYSIBM.SYSINDEXPART

C. Column CLUSTERRATIOF in SYSIBM.SYSINDEXESD. Column LASTUSED in SYSIBM.SYSINDEXSPACESTATSE. Columns LEAFNEAR and LEAFFAR in SYSIBM.SYSINDEXPART

Correct Answer: ADSection: (none)Explanation


QUESTION 53Poorly tuned memory can affect application performance, such as having sequential prefetch turned off. Whichstatistic should you monitor from the statistics report to be sure this is not occurring?

A. PREF.DISABLED-NO BUFFERB. PREF.DISABLED-NO READ ENGC. BUFF.UPDATES/PAGES WRITTEND. PAGES WRITTEN PER WRITE I/O



QUESTION 54In order to properly monitor locks on a continual basis, which action should be performed but will avoid usingexcessive CPU resources to gather the information?

A. Turn on a monitor trace.B. Always have a performance trace running.C. Perform a DISPLAY DATABASE (LOCKS ) command often.D. Always have statistics classes 1,,3, and 4 and accounting classes 1 and 3 running.


Explanation/Reference:

QUESTION 55The I/O patterns for objects in database NEWBILL need to be reviewed in detail. All of the NEWBILL work runsunder a single plan, NEWBILLPL. What START TRACE command should be used to gather the I/O informationneeded for the objects in database NEWBILL?

A. START TRACE(AUDIT) PLAN(NEWBILLPL)B. START TRACE(IO) CLASS(ALL) PLAN(NEWBILLPL)C. START TRACE(PERFM) CLASS(3) PLAN(NEWBILLPL)D. START TRACE(ACCT) CLASS(1,2,3) PLAN(NEWBILLPL)

Correct Answer: CSection: (none)

Explanation


QUESTION 56When is a merge scan join a well performing access path?

A. When the number of qualifying rows of the inner and outer table are both large.B. When the query references at least two dimensions and the STARJOIN subsystem parameter is 1.C. When the number of rows in the outer table is small and the number of pages accessed in the inner table is

small.D. When the matching columns of the inner table are in a non-clustering index or the outer table has duplicate

qualifying rows.



QUESTION 57When determining what page size will be best for index compression, which utility can be used to provideinformation on space saved and potential buffer space wasted for each of the different page sizes?

A. DIAGNOSEB. DSN1COMPC. DSN1PRNTD. DSN1LOGP



QUESTION 58Which DB2 performance feature is designed specifically to reduce the number of indexes that need to becreated?

A. Inline LOBs.B. Include columns.C. Hash row access.D. Direct row access.



QUESTION 59In using plan stability, what storage space requirement should be of carefully monitored?

A. MINSTORB. DSNDB07C. DSNDB01.SPT01D. DSN_STATEMNT_TABLE



QUESTION 60The performance of BP5 is being evaluated. The Page residency time is being used to see if VPSIZE should bechanged. The statistics that are available are VPSIZE of 90,000 and VPSEQT of 15 %. There are 4458 synch I/O per second and 1696 async I/O per second. 6154 total pages read. The system page residency time is 14.6seconds. Based on a system page residency time of 14.6 seconds, what should be done to increase pageresidency time?

A. Increase DWQT to 10.B. Decrease VPSIZE by 45,000 pages.C. Increase VPSIZE to 180,000 pages.D. Change the buffer pool to use PGFIX(YES).



QUESTION 61The new billing application is seeing Class 2 Elapsed Time being made up of mainly Class 3 Synchronousdatabase I/O time. All of the DB2 objects for the new billing application are in BP5. What command can beused to research the details behind the database I/O time associated with the new billing application?

A. DISPLAY DDF DETAILB. START TRACE(AUDIT)C. DISPLAY BUFFERPOOL(*)D. DISPLAY BUFFERPOOL(BP5) LSTATS(ACTIVE) DETAIL



QUESTION 62Which of the following types of SQL statements are NOT eligible to be stored in the dynamic SQL statementcache?

A. MERGEB. INSERT

C. SELECTD. OPEN



QUESTION 63What must be in place for the support of index compression?

A. User defined algorithm.B. Compression dictionary.C. Table space compression.D. Page size larger than 4K.



QUESTION 64How do you enable parallelism in a dynamic SQL statement?

A. BIND with DEGREE(1)B. BIND with DEGREE(ANY)C. Use SET CURRENT DEGREE = ANYD. Use SET CURRENT DEGREE = '1'



QUESTION 65When is changing an index from non-clustering to clustering NOT allowed?

A. If the table space is defined as member cluster.B. If the data is not ordered by the new clustering index.C. If the new clustering index is for a table that uses hash organization.D. If the new clustering index OBID is greater than the old clustering index OBID.



QUESTION 66To monitor the storage used above and below the 2GB bar, what must occur?

A. Start a statistics class 1 trace.B. Start a monitor class 1 & 2 trace.C. Start an audit class 3 trace.D. Start accounting class 7 & 8 traces.



QUESTION 67The frequency of data being changed for several tables in the new Billing application is very unpredictable. Adifferent approach to manage Runstats for these objects is desired. To provide additional information on updatepatterns for the new Billing Application, the DBA can use what information to better understand theunpredictable workload patterns on the tablespaces?

A. SYSIBM.SYSCOPYB. SYSIBM.SYSSTATSC. SYSIBM.SYSTABLESD. SYSIBM.SYSTABLESPACESTATS



QUESTION 68When specifying "A" for the acceptance option in the column SECURITY_IN in the SYSIBM.LUNAMES catalogtable, which statement is correct?

A. An inbound ID is subject to translation.B. A request does not need an authentication token.C. With this option, VTAM cannot be defined with SECACPT=ALREADYV.D. For outbound requests, the encrypted password is extracted from RACF.



QUESTION 69The access path chosen for a query shows a table space scan, when it appears that there is an index availablethat would provide a more efficient access path. What situation could have caused a table space scan to bechosen instead of the index?

A. Index is created with PCTFREE of zero.B. The number of columns in the index is less than four.

C. RUNSTATS were run when there were no rows in the table.D. RUNSTATS were run when there was a million rows in the table.



QUESTION 70You have been asked to find packages that use isolation level UR in dynamic SQL. Which trace will be utilized?

A. Audit trace class(4)B. Monitor trace class(6)C. Performance trace class(3)D. Accounting trace class(1,2,3,7,8)



QUESTION 71Which of the following techniques CANNOT be used to implement DB2 based row level authorization in a read-only environment for a specific table?

A. Using a view.B. Using a VALIDPROC.C. Using multi-level security.D. Using masks and permissions.



QUESTION 72What must be done in order to audit read access to a table?

A. AUDIT ALL must be set on the table and an audit trace must be started.B. An EDITPROC must be defined on the table and an audit trace must be started.C. DATA CAPTURE CHANGES must be set on the table and the DB2 log must be captured.D. A security label column should be defined on the table within a trusted context.



QUESTION 73Which minimum system privilege allows you to create a trusted context?

A. DBADMB. SECADMC. SYSCTRLD. ACCESSCTRL



QUESTION 74If security administration is separated from system and database administration, via zparm, which level ofauthority is required to define roles or trusted contexts?

A. SYSADMB. DBADMC. SECADMD. INSTALL SYSOPR



QUESTION 75Which DSNZPARM parameter controls the number of locks that may be acquired on a table space?

A. NUMLKUSB. MAXUSRSC. NUMLKTSD. MXDTCACH



QUESTION 76DB2 10 is in enabling-new-function mode* after migrating from Version 8, which statement is correct?

A. The DB2 subsystem was at some point in in NFM.B. The DB2 subsystem can still fall back to DB2 Version 8.C. Coexistence is allowed with a DB2 9 data sharing group member.D. The asterisk (*) indicates objects created in NFM can no longer be accessed.



QUESTION 77In order to communicate a DISPLAY DATABASE (DB1) SPACENAM (TS1) command execution from one DB2member to another, which coupling facility structure is used?

A. GBP32B. SCAC. LOCKD. GBP0



QUESTION 78Which clone table statement is correct?

A. A clone table can have its own indexes.B. A clone table has its own catalog statistics.C. The clone and base tables share a table space.D. The clone and base tables must have different schema names.



QUESTION 79What is a potential consideration when using triggers?

A. They are not invoked by the LOAD REPLACE utility.B. When using views, the underlying tables cannot have a trigger defined.C. RI and check constraints are evaluated prior to any trigger invocation.D. They run in a WLM managed address space, so invoking them frequently (e.g. when using a row level

trigger) can be costly.



QUESTION 80Given the following CREATE TABLE statement: CREATE TABLE TB1 (C1 CHAR(4), C2 XML, C3 CLOB(1K)) ;

How many VSAM clusters will DB2 create?

A. 1B. 4C. 5D. 6



QUESTION 81You want to ALTER a table space specifying MAXPARTITIONS 256. For which table space type does theALTER fail?

A. Simple table space with one table.B. Segmented table space with one table.C. Classic partitioned table space with one table.D. Partitioned-by-growth table space with one table.



QUESTION 82Compression is desired for index IX1. The current definition of IX1 is as follows: CREATE INDEX IX1 ON TAB1(COL1 ASC) USING STOGROUP STG1 BUFFERPOOL BP1 ; Which of the following activities must beperformed first in order to compress the existing index IX1?

A. Copy the index.B. REBUILD the index.C. Compress the tablespace.D. ALTER the index to use a page size larger than 4K.



QUESTION 83Which of the following does NOT make a view a read-only view?

A. The outer fullselect contains a GROUP BY clause.B. The first SELECT clause specifies the keyword DISTINCT.C. The only table referenced is a system maintained temporal table and a period-specification is specified.D. Any FROM clause, after the first, identifies more than one table or view, or identifies a table function, a

nested table expression, or a commontable expression.



QUESTION 84A table is created using the ORGANIZED BY HASH UNIQUE syntax, what action should occur?

A. Specify the column names to be hashed.B. Create a unique index on the hash columns.C. Create a clustering index on the hash columns.D. Create a unique clustering index on the hash columns.



QUESTION 85A LOB column with BLOB(40) INLINE LENGTH 40 has been defined. Which statement is correct?

A. The data is only stored in the auxiliary table.B. The data is only stored in the base table.C. The complete data is stored both in auxiliary and in base table.D. The first part of the data is stored in the base table and second part is stored in the auxiliary table.



QUESTION 86Which statement about encoding schemes is correct?

A. A view can have columns with different encoding schemes.B. A table can have columns with different encoding schemes.C. A table space can have tables with different encoding schemes.D. All objects in the subsystem must use the same encoding schemes.



QUESTION 87Why does the following DDL command fail? CREATE INDEX X1 ON T1 (COL1, COL2, COL3,BUSINESS_TIME WITHOUT_OVERLAPS);

A. The index must be partitioned.B. The index must use page size > 4K.C. The index must be defined as UNIQUE.D. The index must be defined as CLUSTER.



QUESTION 88In which situation does adding a referential constraint place a table space containing data into check- pendingstatus?

A. When a primary key is defined on a table with no unique index.B. When a foreign key is defined on a table with the ENFORCED option.C. When a foreign key is defined on a table and a corresponding primary key has not been defined.D. When a foreign key is defined on a table with NOT ENFORCED option and a unique index has not been

defined.



QUESTION 89Your table space DB1.TS1 is currently index-partitioned. Which steps should be performed at a minimum tomake it a partitioned-by-range table space?

A. Issue ALTER TABLESPACE with a valid SEGSIZE > 0B. Make the table space table-partitioned, then issue ALTER TABLESPACE with a valid SEGSIZE >C. Drop the partitioning index, ALTER the table definition by adding partition ranges to the existing table

definition, then issue ALTERTABLESPACE with a valid SEGSIZE > 0D. Drop the partitioning index, ALTER the table definition by adding partition ranges to the existing table

definition, create a partitioned index andissue ALTER TABLESPACE with a valid SEGSIZE > 0



QUESTION 90Which of the following types of table spaces allow multiple tables?

A. SegmentedB. LOB table spaceC. Partition-by-rangeD. Partition-by-growth



QUESTION 91Which of the following tasks cannot be done via a single ALTER TABLE statement?

A. Add a new partition to the table space.B. Change the VALIDPROC attribute of the table.C. Change a table check constraint on the table.D. Change the DATA CAPTURE attribute of the table.



QUESTION 92Click on the exhibit to view properly coded XML data. Some employees have been assigned assistants. Whichtwo are the leanest, most efficient XML indexes to get both the names and phone numbers of employees whoare not assistants?

A. CREATE INDEX empname1 ON dept(info)GENERATE KEY USING XMLPATTERN '//name' as sql varchar(20);CREATE INDEX empphone1 ON dept(info)GENERATE KEY USING XMLPATTERN '//phone' as sqlvarchar(20);

B. CREATE INDEX empname1 ON dept(info)GENERATE KEY USING XMLPATTERN '//name' as sql varchar(20);CREATE INDEX empphone1 ON dept(info)GENERATE KEY USING XMLPATTERN '/deptinfo/phone'as sql varchar(20);

C. CREATE INDEX empname1 ON dept(info)GENERATE KEY USING XMLPATTERN '/deptinfo/name' as sqlvarchar(20);CREATE INDEX empphone1 ON dept(info)GENERATE KEY USING XMLPATTERN '//phone'as sql varchar(20);

D. CREATE INDEX empname1 ON dept(info)GENERATE KEY USING XMLPATTERN '/deptinfo/employee/name' as sql varchar(20);CREATE INDEX empphone1 ON dept(info)GENERATE KEY USINGXMLPATTERN '/deptinfo/employee/phone' as sql varchar(20);



QUESTION 93What is the one significant difference between sequence objects and identity columns?

A. Identity columns can cache values and sequence objects cannot.B. Identity columns can be defined on tables and sequence objects cannot.C. Sequence objects can have a character data type and identity columns cannot.D. Sequence object values can be used as primary keys and identity column values cannot.



QUESTION 94Altering the DSSIZE is allowed for what type of table space?

A. XML table space.B. Universal table space.C. Segmented table space.D. DSSIZE cannot be altered.



QUESTION 95When these two commands are issued in sequence, one after the other: STOP FUNCTION SPECIFIC(A.B)ACTION(REJECT) STOP FUNCTION SPECIFIC(A.B) ACTION(QUEUE) What will occur?

A. Function A.B is stopped and queues all access.B. Function A.B is stopped and rejects all access.C. Function A.B is stopped and rejects all access until we start the function or run out of installation timeout.D. Function A.B is stopped and queues all access until we start the function or run out of installation timeout.



QUESTION 96What is the purpose of the following query? SELECT DBNAME, NAME FROM SYSIBM.SYSTABLESPACE TSWHERE NOT EXISTS (SELECT TP.DBNAME, TP.TSNAME FROM SYSIBM.SYSTABLEPART TP WHERETP.DBNAME = TS.DBNAME AND TP.TSNAME = TS.NAME);

A. It displays the number of inconsistent rows in SYSIBM.SYSTABLESPACE.B. It identifies which tables do not have related rows in SYSIBM.SYSTABLEPART.C. It identifies which table spaces have missing related rows in SYSIBM.SYSTABLEPART.D. It displays which rows in SYSIBM.SYSTABLEPART do not have a matching table name in

SYSIBM.SYSTABLESPACE.



QUESTION 97Your current backup strategy is to run COPY SHRLEVEL CHANGE for all your table spaces each night. Youcreate FULL image copies once a week and INCREMENTAL copies during the rest of the days. After migratingto DB2 10, you plan to create the FULL image copies using FLASHCOPY YES and COPYDDN, that is youcreate a flash copy image copy (FCIC) and additionally a sequential copy. What happens to the incrementalcopies that you continue to create on all other days?

A. If DSNZPARM FLASHCOPY_COPY is set to YES, the incremental copies will automatically be incrementalFLASHCOPY copies.

B. Nothing special. The only difference is that the FULL copy, which is the basis for the subsequentincremental copies has now been generatedfrom the FCIC.

C. The COPY utilities with FULL NO option will not run. If there are entries in SYSIBM.SYSCOPY that indicatethat FCICs exist for a give page set,INCREMENTAL copies cannot be taken anymore.

D. The first image copy utility execution after the FULL FCIC and sequential copy created from the FCIC willend up as FULL copy although youspecify the FULL NO statement on the COPY utility control statement.



QUESTION 98What is the appropriate action to maintain data consistency if your page set is in REFP restrictive state?

A. Recover the table space to current.B. Run the REORG utility with SHRLEVEL NONE.C. Run a Point In Time RECOVER or the LOAD REPLACE utility.D. Issue command -START DB(yourdb) SP(yourtbspace) ACCESS(FORCE).



QUESTION 99Unnecessary REORGs of indexes may be avoided by which of the following?

A. Use the SYSIBM.SYSINDEXSPACESTATS table.B. Use the REPORT utility to determine the degree of organization.C. Use the CHANGELIMIT keyword when creating an image copy of the index.D. Use the CHECK INDEX utility to find out if the index needs to be reorganized.



QUESTION 100Which of the following utilities is NOT relevant for health checking the DB2 V10 catalog or directory in newfunction mode?

A. CHECK LOBB. CHECK INDEXC. DSN1COPYD. DSN1CHKR



QUESTION 101The -DIS UTIL(REORGON) command was entered for a REORG utility with SHRLEVEL CHANGE with utilidREORGON. Which statement is NOT true?

A. It shows how many keys are rejected when issued during the SORTBLD phase.B. It shows the elapsed time of the SWITCH phase when issued during the SWITCH phase.C. It indicates how many parallel tasks are involved to build indexes when issued during the BUILD phase.D. It shows an actual and estimated time of how far it has proceeded in the current iterations when issued

during the LOG phase.



QUESTION 102Using the -SET LOG command, what logging characteristics CANNOT be modified?

A. The number of minutes between the start of successive checkpoints.B. Add a newly defined active log data set to the active log inventory.C. Altering DB2 from dual active logging mode to single active logging mode.D. The number of log records that DB2 writes between the start of successive checkpoints.



QUESTION 103What kind of information is stored in SYSIBM.SYSCOPY?

A. General information needed for recovery.B. Only information about existing image copies.C. Information about currently running and stopped copy jobs.D. Only information about objects which are currently in copy pending.

Correct Answer: ASection: (none)

Explanation


QUESTION 104What is one of the first key steps in preparing to use the BACKUP SYSTEM utility?

A. Run the MODIFY RECOVERY utility.B. Alter the BSDS to allow BACKUP SYSTEM.C. Define one or more storage groups to a COPYPOOL.D. Stop DB2 to enable DFSMShsm functionality to be used.



QUESTION 105An object (table space, index space or a physical partition of a table space or index space) is in AREST orRESTP status. If backout activity is not already underway, what should occur?

A. Issue a RECOVER POSTPONED command.B. Issue a START command with ACCESS(RW).C. Recycle the system with the system parameter LBACKOUT=NO.D. Issue a STOP command and then a START command with ACCESS(RW).



QUESTION 106Which two parameters would reduce the impact of availability from a REORG with SHRLEVEL CHANGE for apartitioned table space with 16 parts? (Choose two.)

A. LOG NOB. SORTKEYS 16C. FASTSWITCH YESD. AUTOESTSPACE YESE. DRAIN_WAIT & RETRY

Correct Answer: CESection: (none)Explanation


QUESTION 107The application will be handling a large volume of input data that will need to be added to or update 4 differenttables. On average, there will be 50 million input records daily. To ensure that the application process to SQL

INSERT and SQL UPDATE(or SQL MERGE) delivers a high level of availability to the tables involved in thisapplication process, what is a key component of the application coding?

A. Issue a LOCK TABLE for all 4 tables.B. Execute the SQL INSERT before the SQL UPDATE.C. Provide an effective commit / restart process.D. Run a QUIESCE utility before the process starts.



QUESTION 108Which option allows the UNLOAD utility to unload LOBs into output files together with non-LOB data?

A. DELIMITEDB. SPANNED YESC. DSNTYPE HFS on the TEMPLATED. DSNTYPE LIBRARY or PDS on the TEMPLATE




c2090-612.examcollection.premium.exam be specified for capturing changes to an xml object. b. to...

Documents