1Z0-515 Exam Questions & Answers

Exam Code: 1Z0-515

Exam Name: Data Warehousing 11g Essentials

Updated:

Q&As: 70

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Practice These Free Questions and Answers to Pass the Others Oracle Certifications Exam

Questions 1

You are looking to size a data warehouse configuration. If the I/O throughput for the CPUs is 25 GB/s, the I/O throughput for the HBA is 18 GB/s, and the I/O throughput for the disk subsystem is 6 GB/s, what is the overall throughput of the data warehouse?

A. 25 GB/s

B. 18 GB/s

C. 6 GB/s

D. It depends on how many processors are in the servers.

Show Answer
Questions 2

Which unique method of improving performance is NOT used by the Oracle Exadata Database Machine?

A. Flash to improve query performance

B. Reduces the amount of data required to flow through I/O

C. Increases the I/O using InfiniBand

D. Performs analysis in a special in-memory database

Show Answer
Questions 3

Your customer wants to determine "market baskets." What do you recommend?

A. Use Oracle OLAP Option.

B. Use Oracle SQL Analytic Functions.

C. Use associations algorithm in Oracle Data Mining.

D. Use regression analysis in Oracle Data Mining

Show Answer
Questions 4

For which task would you NOT use Oracle Data Mining?

A. Predicting customer behavior

B. Associating factors with a business issue

C. Determining associations within a population

D. Reducing the amount of data used in a data warehouse

Show Answer
Questions 5

Your customer is looking to implement ad-hoc analysis in a data warehouse. Which approach is least likely to be used assuming that the customer does not want the expense of managing view?

A. Star schema

B. Snowflake schema

C. Third normal form schema

D. OLAP

Show Answer

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