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IBM C2090-421 Exam Syllabus Topics:

IBM InfoSphere DataStage v8.5 Sample Questions:

1. Refer to the exhibit.

You are responsible for improving performance for a given job. From reviewing the job dump score, you notice that many tsort operators are inserted. Join_1 is on columns "account", "po_date" and "hdr_number". Join_2 is based on "account", "hdr_number", "paid_date".
Which two actions will help you improve the performance without changing the business logic?
(Select two)

A) Partition on account and hdrnumber for all joins. Change Join_1 to join on "account", "hdrnumber" and "po_date". Insert Sort between Join_1 and Join_2 and subsort ("Don't sort previously sorted") on "account" and "hdr_number" and sort on "paid_date".
B) Partition on account and hdr_numberfor all joins. Change Join_1 to join on "account", "hdr_number" and "po_date". Insert Sort between Join_1 and Join_2 and subsort ("Don't sort previously sorted") on "account".
C) Partition on "account" and "hdr_number" for all joins. Change Join_1 to join on "account", "hdr_number" and "po_date". Add Add $APT_SORTJNSERTION_CHECK_ONLY to job parameter list and set it to "True".
D) Insert sort stage between Join_1 and Join_2, subsort ("Don't sort, previously sorted") on "account", sort "hdr_number" and "paid_date".

2. What three types of links are supported by the Lookup Stage? (Select three)

A) Multiple reject links
B) A single input link
C) A reference link
D) A single output link
E) Multiple Input Links

3. In a Transformer, which two of the following mappings can be handled by default type conversions. (Select two)

A) Integer input column mapped to string output column.
B) Date input column mapped to a string output column.
C) String input column mapped to integer output column.
D) String input column mapped to a data output column.
E) Integer input column mapped to raw output column.

4. You are connected to a domain and must configure it for Source Code Integration.
What are the two things that must be done to associate your DataStage repository with a source control system? (Select two)

A) From Designer Client choose Team Share Project.
B) Create a source code control project with the same name as the domain. Choose Integrate Source Control.
C) From Information Server Manager choose Team Share Project.
D) From Information Server Manager choose Team Import.

5. You set environment variable $APT_ORACLE_LOAD_OPTIONS=PTIONS(DIRECT=TRUE, PARALLEL=TRUE)?for loading index organized tables.You set environment variable $APT_ORACLE_LOAD_OPTIONS=?PTIONS(DIRECT=TRUE, PARALLEL=TRUE)?for loading index organized tables. Which statement is accurate regarding the resulting effect of this environment variable setting?

A) The Oracle load will run in parallel using simple direct path mode.
B) Oracle load will run in parallel and bypass DataStage Director.
C) Oracle load will fail when executed.
D) The Oracle database stage will run in parallel using conventional path mode.

Solutions: