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1z0 515 preparation material

http://www.certschief.comCertification Preparation Material

Oracle

1Z0-515

Oracle Database 11g Data Warehousing Essentials

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1z0 515 preparation material

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Question: 1

Indentify the true statement about REF partitions.

A. REF partitions have no impact on partition-wise joins.

B. Changes to partitioning in the parent table are automatically reflected in the child table.

C. Changes in the data in a parent table are reflected in a child table.

D. REF partitions can save storage space in the parent table.

Answer: B

Explanation:

http://rajeshwaranbtech.blogspot.com/2010/06/ora-14652-in-reference-partitioningin.

html

Question: 2

Identify the control structure that would NOT be defined as part of a data flow with Oracle Data Integrator.

A. Loops

B. Conditions

C. Error handling

D. GOTOs

Answer: D

Explanation:

http://www.oracle.com/global/hu/events/20080917/1_odi_odd_%20introduction_and_architecture.pdf

Question: 3

For which type of query is the SQL result cache automatically disabled?

A. Queries that access data which changes frequently

B. Queries that return large amounts of data

C. Queries that use SQL functions such as SYSDATE

D. Queries that are used infrequently

Answer: C

Explanation:

http://books.google.com/books?id=-

4S6xQurmYC&pg=PA821&lpg=PA821&dq=SQL+result+cache+automatically+disabled&source=bl&ots=cmCLbFNfO-

&sig=0EPaIT1ws3PkpqVhs-

DSfalAnrQ&hl=en&ei=o8YTZtD0_fiBs6GzKUK&sa=X&oi=book_result&ct=result&resnum=1&ved=0CBUQ6AEwAA#v=o

nepage&q=SQL%20result%20cache%20automatically%20disabled&f=false

Question: 4

Which is NOT among Oracle SQL Analytic functions included in Oracle Database 11g?

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1z0 515 preparation material

http://www.certschief.comCertification Preparation Material

A. Ranking functions

B. Substring functions

C. Window aggregate functions

D. LAG/LEAD functions

E. All of the above

Answer: E

Explanation:

Correct Answer: All Functions are there in 11G

http://education.oracle.com/pls/web_prod-plqdad/

db_pages.getCourseDesc?dc=D52496GC10&p_org_id=68&lang=US

Question: 5

How many Exadata Storage Server cells can be used in a grid?

A. 7

B. 14

C. 128

D. No practical limit

Answer: D

Explanation:

http://www.pythian.com/news/1267/interview-kevin-closson-on-the-oracle-exadatastorage-server/

Question: 6

Identify the action that you CANNOT perform using Database Resource Manager.

A. Define Consumer Groups.

B. Create rules to map sessions to Consumer Groups.

C. Define a Resource Plan.

D. Allocate individual CPUs to Consumer Groups.

Answer: D

Explanation:

http://www.oracle.com/technetwork/database/features/performance/resourcemanager-twp-

133705.pdf

Question: 7

You will be implementing a data warehouse for one of your customers. In your design process, which index type is

most likely to be used to improve the performance of some queries where the data is of low cardinality?

A. Bitmap indexes

B. B*-tree indexes

C. Reverse indexes

D. Invisible indexes

Answer: A

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1z0 515 preparation material

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Explanation:

http://www.toadworld.com/Newsletter/TWPIPELINEJanFeb2010/PIPEJanFeb10Oracle/tabid/672/Default.aspx

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1z0 515 preparation material

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