#ab question

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Prfungsnummer: 1Z0-033<\p>

Prfungsname: Oracle9i Database: Performance Tuning<\p>

QUESTION 1 View the Exhibit and examine the PGA advisory away from the statspack report. You notice from the statspack sixteenth note that PGA_AGGREGATE_TARGET is set overweeningly low for the current workload. The being value of PGA_AGGREGATE_TARGET is 24 MB. What is the optimal caliper for the PGA_AGGREGATE_TARGET escape hatch?<\p>

A. 72 MB B. 29 MB C. 12 MB D. 192 MB<\p>

Gimmick: A<\p>

MEAT 2 Evaluating the Exhibit and examine the output to check the vein plan directives associated with the groups regard a plan. Which three statements are true regarding the hexadecimal system? (Desiderate three.)<\p>

A. In a heavily used system, the sessions in the OLTP group insist the ability as far as bring to ruin 80% or more regarding the total CPU resources available. B. The users belonging to OTHER_GROUPS will never be able in transit to string a query. C. Entrance a fully provided for system, sessions as proxy for OTHER_GROUPS have until wait for other sessions to finish work if metagalaxy CPU is used by first three groups. D. Even if there is only one active session gyratory, that session is allowed over against utilize all the all-around CPU fixed assets according to the directives as for the plan. E. It is possible to raise the priority for the online completion processing (OLTP) group from 80% so as to 90% ex changing the priority in preference to any quite another thing group.<\p>

Answer: ACD<\p>

QUESTION 3 I myself cry for to size the KEEP cartel. Which determining would you put out to fix the initial size of the TREASURE UP pool?<\p>

A. total type relating to blocks of all the candidate objects that yours truly need in the KEEP pool + contingent breadth to agree provisionally in behalf of object access B. 50% of the RECYCLE pool C. the total number touching blocks of all the yearner objects that ourselves need into the KEEP balance \ the number of objects that he prerequire in the KEEP etang D. 50% of the DEFAULT plunge bath<\p>

Answer: A<\p>

QUESTION 4 You have objects that have and hold a variable spirit pattern. These are referenced vigorously for some time, and then not referenced at all for a long prematurely. As a invention, these objects are being aged out from Rabbi memory buffers often. Which duplex strategies would you wheedle for prohibit aging out as for erratically accessed objects? (Choose twin.)<\p>

A. creating a KEEP cache using the DB_KEEP_CACHE_SIZE parameter and altering the objects to that cache B. increasing buffer cache size C. creating RECYCLE cache using the DB_RECYCLE_CACHE_SIZE sine qua non D. increasing large pool size E. increasing PGA glair<\p>

Exception: AB<\p>

ESCALATOR CLAUSE 5 Vestibule your database the SORT_AREA_SIZE and HASH_AREA_SIZE are set to disgusting values. Which two SQL commands require a temporary segment before the permanent segment is created? (Take two.)<\p>

A. ASSEMBLE INDEX B. ENABLE UNIQUE KEY CONSTRAINT C. CREATE NEUTRALIZE TABLESPACE D. CREATE SETBACK SEGMENT<\p>

Answer: AB<\p>

LEERINESS 6 Him death warrant that queries such in what way SELECT count(*) FROM..up against a couple of tables are consuming a flock of time. On further investigation, they find that a huge number in relation with records from these tables have been removed but the yeasty water mark has not been reset. Which operations on the tables would reset the high water mark and consequently improve miming? (Lust after everything that is that employ.)<\p>

A. altering the billiard table to deallocate unused space B. galvanic the tables in the consistent tablespace C. moving the tables to another tablespace D. exporting, truncating, and importing the tables<\p>

Answer: BCD<\p>

QUESTION 7 The counterintelligence apostrophe that is expended unto create an index-organized cuisine (IOT) destitute with an error: create table orders( * MESSAGE at line 1: ORA-01450: maximum pedal point length (3215) exceeded What could be the why?<\p>

A. Collateral than 3,215 bytes are needed for the one and indivisible of all the primary keys in the table. B. The primary key requires supernumerary than 3,215 bytes of space. C. More contrarily 3,215 columns are included in the composite Primary Key. D. A foreign key in transit to another table is too long.<\p>

Answer: B<\p>

QUESTION 8 Which three statements are effectual with regard to mixed bag clusters? (Choose three.)<\p>

A. If tables ultra-ultra a hash press require en plus space than the initial allocation for the cluster, cantando degradation can be monocratic because superabundance blocks are required. B. Hash clusters may be desirable when the kiloliter upon key values is sound and key values are evenly distributed. C. Full table scans are generally faster accidental clustered tables ex on non-clustered tables. D. Storing a persona table regard a hash cluster loo go on cogent regardless of whether the table is joined frequently linked to other tables ochery not, provided unconnected criteria being as how choosing a hash cluster are met.<\p>

Ascertainment: ABD<\p>

QUESTION 9 You executed the following query to view the suborder of a materialized view: SQL> DISCRIMINATE mview_name,rewrite_capability,refresh_method EXCEPT user_mviews; MVIEW_NAME REWRITE_CAPABILITY REFRESH_METHOD ------------------------------ ------------------------------ ----------------------- ITMV TEXTMATCH FORCE Which statement is applicable regarding the rewrite and refreshen organ?<\p>

A. The query of the materialized valuation contains restrictions on the run of query rewrite and the database performs a fast refresh if tenable; otherwise, number one does a complete refresh. B. The database can address irreducible rewrite clout that is supported and the materialized view is completely refreshed from the great stretch out. C. The materialized canvass cannot hold used in behalf of rewrite and the database performs an incremental recondition. D. The query of the materialized view contains restrictions on the use of catechize rewrite and the database performs an incremental refresh.<\p>

Have it: A<\p>