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2021 May C2090-303 Study Guide Questions:
Q31. - (Topic 2)
The effective use of naming conventions means that objects need to be spaced appropriately on the DataStage Designer canvas. For stages with multiple links,expanding the iconborder can significantly improve readability. This approach takes extra effort at first, so a pattern of work needs to be identified and adopted to help development. Which feature of Designer can improve development speed?
A. Palette Layout
B. RepositoryLayout
C. Snap to Grid Feature
D. Show Performance Statistics Feature
Answer: C
Q32. - (Topic 2)
Click the Exhibit button.
The job in theexhibit runs to successful completion with no warnings. However, a validation test identifies that the CUSTOMER_MASTER table is empty. You suspect the cause to be related to the NEW_CUSTOMERS table or a defect in the job. Examining runtime metadata mayhelp you track down the problem. Which two product features will help you isolate the cause of the problem? (Choose two.)
A. Director job monitor tool.
B. Designer Performance Analyzer tool.
C. Designer "Show performance statistics" option.
D. The view data button in the target Connector stage.
E. InfoSphere Metadata Asset Manager (IMAM) operational metadata reports.
Answer: A,C
Q33. - (Topic 1)
Which statement is true when using the SaveInputRecord() function in a Transformer stage.
A. You can only use the SaveInputRecord() function in Loop variable derivations.
B. You can access the saved queue records using Vector referencing in Stage variable derivations.
C. You must retrieve all saved queue records using the GetSavedInputRecord() function within Loop variable derivations.
D. You must retrieve all saved queue records using the GetSavedInputRecord() function within Stage variable derivations.
Answer: C
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Q34. - (Topic 2)
Which statement describes a SCD Type One update in the Slowly Changing Dimensionstage?
A. Adds a new row to the fact table.
B. Adds a new row to a dimension table.
C. Overwrites an attribute in the fact table.
D. Overwrites an attribute in a dimension table.
Answer: D
Q35. - (Topic 1)
Which twostatements are true about stage variables in a Transformer Stage? (Choose two.)
A. Stage variables can be set to NULL.
B. Stage variables cannot be set to NULL.
C. Varchar stage variables can be initialized with spaces.
D. Stage variables are refreshedwith default values before each new input row is processed.
E. A stage variable in one Transformer can refer to a stage variable in another Transformer, as long as the second Transformer was processed earlier in the job flow.
Answer: A,C
Q36. - (Topic 1)
When optimizing a job, Balanced Optimization will NOT search the job for what pattern?
A. Links
B. Stages
C. Sequencers
D. Property Settings
Answer: C
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Q37. - (Topic 2)
Two new columns have been deleted from a sequential file that a number of DataStage jobs write to. You have imported a table definition for the changed file. How canyou determine what jobs might be affected by this change?
A. Select the new table definition, right-click, then click on the Where used command.
B. Select the original table definition, right-click, then click on the Where used command.
C. Select the original table definition, right-click, then click on the Find dependencies command.
D. Select the new table definition, right-click, click on the Compare against command, then select original table definition.
Answer: B
Q38. - (Topic 2)
Whatare the valid join operations for the Join stage? (Choose two.)
A. Inner join
B. Where join
C. Top outer join
D. Right outer join
E. Bottom inner join
Answer: A,D
Q39. - (Topic 1)
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. The default for requestedsessions is the minimum number of available sessions.
B. The default for requestedsessions is the maximum number of available sessions.
C. Requestedsessions is a number between 1 and the number of vprocs in the operating system.
D. Sessionsperplayer determines the number of connections each player in the job has to Teradata.
E. Total requested sessions equals sessions per player multiplied by number of nodes multiplied by players per node. The default value is 4.
Answer: B,D
Q40. - (Topic 2)
You want to better understand the tsort operators that are inserted into the job flow at runtime. Which environment variable can provide this information?
A. $OSH_DUMP
B. $APT_DUMP_SCORE
C. $APT_STARTUP_STATUS
D. $APT_PM_PLAYER_MEMORY
Answer: B