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IBM InfoSphere Warehouse V9.5 Sample Questions:
1. You manage a store and want to increase the sales of some high profit items. One way to do this is by placing these items close to other products that are often purchased with the high profit items.
You have a year's history of all sales, including all the items that were purchased in each sale. To determine optimal product placement for the high profit items, which mining method should be used to analyze your data?
A) Association
B) Regression
C) Classification
D) Clustering
2. A customer wants to include analysis of product sales for their locations at various levels of their product lines and various levels of their geography. Which two schema considerations are necessary to satisfy the requirement? (Choose two.)
A) a location dimension with geography hierarchies
B) a product dimension with product line hierarchies
C) a location dimension with product attributes
D) a product dimension with geography hierarchies
E) a product dimension with location attributes
3. Which statement is true about iterator operators?
A) They are used as the first step in application development.
B) They can be controlled by either variable values or file input.
C) They are used in data flows where a number of tables are combined.
D) They are needed for processing tables that contain slowly changing dimensions.
4. If you roll-in daily and roll-out monthly, which approach reduces the number of table partitions and eases the DBA administrative tasks?
A) Specify a MDC on day and a table partition key for day.
B) Specify a MDC on day and a table partition key for month.
C) Specify a MDC on month and a table partition key for month.
D) Specify a MDC on month and a table partition key for day.
5. A customer is having performance issues with a query against a cube they built using Cube Services. Examination of EXPLAIN output determines that the query did not usethe MQTs (summary tables). Which situation would cause the Optimizer to bypass the MQTs?
A) The query contains measures which are not included in the cube model but can be calculated from the data in the rows.
B) The query contains functions on the attributes contained in the cube.
C) The query accesses data that is above the cube slice in the summary table.
D) The query accesses data that is below the cube slice in the summary table.
Solutions:
| Question # 1 Answer: A | Question # 2 Answer: A,B | Question # 3 Answer: B | Question # 4 Answer: B | Question # 5 Answer: D |
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