IBM InfoSphere DataStage v8.5 認定 C2090-421 試験問題:

1. In a file defining a partial schema, which three properties define the record? (Choose three.)

A) intact
B) text
C) record_delim_string
D) delim
E) record_length

2. Which three DataStage elements allow you to create Shared MetaData? (Select three)

A) DataStage table definition
B) Sequential file stage
C) Dataset stage
D) Oracle Connector
E) DB2 Connector

3. In your DB2 database you have column names that use characters # and $. Which two steps should be completed to allow DataStage to convert these characters into internal format and back as necessary? (Select two)

A) Avoid using the strings_035_and_036_in your IBM DB2 column names.
B) Avoid using the strings_025_and_026_in your IBM DB2 column names.
C) Set environment variable $DS_ENABLE_RESERVED_CHAR_CONVERT to true.
D) Set environment variable $DS_ENABLE_RESERVED_NUM_CONVERT to true.

4. You are experiencing performance issues for a given job. You are assigned the task of understanding what is happening at run time for that job. What are the first two steps you should take to understand the job performance issues? (Choose two.)

A) Replace Transformer stages with custom operators.
B) Review the objectives of the job.
C) Run job with $APT_TRACE_RUN set to true.
D) Run job with $APT_DUMP_SCORE set to true.

5. You found there were common functional requirements in the data mapping specification. The required functions are same but the record formats are different. Which action will allow you to effectively implement common logic?

A) Create parallel shared containers with Runtime Column Propagation (RCP) ON and define only necessary columns needed for the logic.
B) Create separate jobs and choose appropriate job within a job sequence.
C) Create parallel routines.
D) Create parallel shared containers and define columns combining all data formats.

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