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IBM C2090-303 Exam Syllabus Topics:

IBM InfoSphere DataStage v9.1 Sample Questions:

1. A job design consists of an input Sequential Files stage, a Sort stage, followed by a Transformer stage and an output Sequential File stage. In the input Sequential Files stage, the "Number of readers per node" property has been set to 3. The job is run on an SMP machine with a configuration file defined with 3 nodes. The $APT_DISABLE_COMBINATION variable is set to True. How many player processes will this job generate?

A) 12
B) 10
C) 8
D) 6

2. Which two statements about the Additional Connections Options property in the Teradata Connector stage to specify details about the number of connections to Teradata are true? (Choose two.)

A) Sessionsperplayer determines the number of connections each player in the job has to Teradata.
B) Total requested sessions equals sessions per player multiplied by number of nodes multiplied by players per node. The default value is 4.
C) The default for requestedsessions is the minimum number of available sessions.
D) Requestedsessions is a number between 1 and the number of vprocs in the operating system.
E) The default for requestedsessions is the maximum number of available sessions.

3. Rows of data going into a Transformer stage are sorted and hash partitioned by the Input.Product column. Using stage variables, how can you determine when a new row is the first of a new group of Product rows?

A) Create a stage variable named sv_IsNewProduct and follow it by a second stage variable
named sv_Product. Map the Input.Product column to
sv_Product. The derivation for sv_IsNewProduct is: IF Input.Product = sv_Product THEN "YES"
ELSE "NO".
B) Create a stage variable named sv_Product and follow it by a second stage variable named
sv_IsNewProduct. Map the Input.Product column to
sv_Product. The derivation for sv_IsNewProduct is: IF Input.Product = sv_Product THEN "YES"
ELSE "NO".
C) Create a stage variable named sv_Product and follow it by a second stage variable named
sv_IsNewProduct. Map the Input.Product column to
sv_Product. The derivation for sv_IsNewProduct is: IF Input.Product <> sv_Product THEN "YES"
ELSE "NO".
D) Create a stage variable named sv_IsNewProduct and follow it by a second stage variable
named sv_Product. Map the Input.Product column to
sv_Product. The derivation for sv_IsNewProduct is: IF Input.Product <> sv_Product THEN "YES"
ELSE "NO".

4. When optimizing a job, Balanced Optimization will NOT search the job for what pattern?

A) Sequencers
B) Links
C) Property Settings
D) Stages

5. You are editing the configuration file. Which statement is true about file system efficiency?

A) Creating scratch disk spaces on an internal disk rather than on an NFS drive improves sort performance.
B) For the resource disk, it is best to use the partition where the engine is installed.
C) In a clustered environment where NAS is used for a common storage, you must specify the internal disk for scratch disk.
D) Using multiple scratch spaces in a logical node improves performance.

Solutions: