10 Tips For Latest 1Z0-515 exam dumps

Exam Code: 1Z0-515 (Practice Exam Latest Test Questions VCE PDF)
Exam Name: Data Warehousing 11g Essentials
Certification Provider: Oracle
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Q1. Indentify the dimension that appears most often in queries in a data warehouse.

A. Product dimension

B. Time dimension

C. Cost dimension

D. Location dimension

Answer: B

Q2. You have analyzed your client's workload and the Materialized Views Advisor in Enterprise Manager recommends that you create some materialized views to improve performance. What should you do in order to most simply implement this change?

A. Rewrite all the queries in the application to identify materialized view

B. Rewrite existing queries. New queries will automatically use the views.

C. Respond positively to the Advisor to create the materialized views.

D. Build virtual views on a third normal form schema.

Answer: C

Q3. How does compression affect resource utilization?

A. Reduces the amount of CPU and disk utilization

B. Increases the amount of CPU and disk utilization

C. Reduces the amount of disk but increases CPU utilization for loading

D. Increases the amount of disk but reduces CPU utilization for loading!

Answer: C

Q4. Flash in the Oracle Exadata Database Machine is of lower latency (and enables faster access to data) than:

A. Memory

B. Memory and locally attached disk

C. Memory and network-attached disk

D. Locally attached and network-attached disk

Answer: D

Q5. You want partitions to be automatically created when data that does not fit into current date range loaded. Which type of partitioning would you implement?

A. Hash

B. List

C. Invisible

D. Interval

Answer: D

Q6. Which feature of Oracle Warehouse Builder can be used to help ensure data quality?

A. Data extraction

B. Data profiling

C. Logical mapping

D. Exception reporting

Answer: B

Q7. You want to create an optimally performing data warehouse hardware configuration for your customer. Which way of creating a hardware configuration will reduce the implementation time the most?

A. Use reference configurations or an appliance-like configuration.

B. Use the existing system and add on relevant components.

C. Customize a configuration from a vendor.

D. Build the system from scratch.

Answer: A

Q8. Identify the true statement about adaptive parallelism.

A. It Is turned on by default.

B. It is turned off by default.

C. You should always leave the default setting

D. There is no such thing.

Answer: A

Q9. You customer wants to segment their customers1 demographic data into those that use and do not use loyalty card. What would you recommend?

A. Use Oracle OLAP Option.

B. Use Oracle SQL Analytic Functions.

C. Use classification algorithm in Oracle Data Mining.

D. Use non-negative matrix factorization in Oracle Data Mining.

Answer: C

Q10. Which two statements are true about the advantages of using a data warehouse?

A. A data warehouse uses fewer database structures, so access to answers is faster and easier

B. A data warehouse is typically implemented with a different design, making access faster.

C. A data warehouse is optimized for ongoing write activity, making response faster.

D. A data warehouse uses specialized features of the Oracle database, like materialized views and star transformations, making response faster.

Answer: BD