IBM A2090-421 Valid Test : Assessment: InfoSphere DataStage v8.5

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IBM A2090-421 Exam Syllabus Topics:

IBM Assessment: InfoSphere DataStage v8.5 Sample Questions:

1. In the job fragment shown in the exhibit, there are two Sort stages: the first (Sort1) sorts the data by state, the second (Sort2) sorts the data by state and area, No repartitioning occurs between the stages.
You have been asked to reduce the number of sorts to improve the performance of the job.

Which two ways might be used to accomplish this without changing how the job functions? (Select two)

A) In the second Sort stage change the Sort Mode property of the state column to "Don't sort, previously sorted.".
B) In the second Sort stage change the Sort Mode property of the area column to "Don't sort, previously sorted.".
C) Remove the first Sort stage. Retain the existing sort keys in the second Sort stage.
D) Remove the second Sort stage. Add area as an additional sort key.

2. What stage allows for more than one reject link?

A) Lookup stage
B) Peek stage
C) Merge stage
D) Funnel stage
E) Join stage

3. A client needs to process a flat file where a set of values in the import data columns should be treated as Null. What is the best way to handle multiple Null values using a Sequential File stage?

A) On the Input Link format tab, specify a separator character in the dependent Null field value separator property and then use this separator to delimit the null values in the Null field value property. Click here to input option.
B) On the Input Link format tab, specify the null values in double quotes separated by a comma in the Null field value property.
C) On the Output Link format tab, specify the null values in double quotes separated by a comma in the Null field value property.
D) On the Output Link format tab, specify a separator character in the dependent Null field value separator property and then use this separator to delimit the null values in the Null field value property.

4. How must the input data set be organized for input into the join stage? (Choose two.)

A) Entire partitioned
B) Sorted in ascending order
C) Hash partitioned
D) Unsorted
E) Key partitioned

5. Which environment variable determines where the temporary scores are stored?

A) APT_JOB_MON
B) APT_SAVE_SCORE
C) APT_HIGH_SCORE
D) APT_DUMP_SCORE

Solutions: