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最新的 IBM Specialist A2090-421 免費考試真題:

1. What are two ways to specify a stylesheet in an XML input stage? (Choose two.)

A) On the output link advanced properties tab, load the content or path of a stylesheet that is stored on the engine tier host.
B) On the output link advanced properties tab, type the stylesheet in the Stylesheet box.
C) On the output link columns properties tab, type the stylesheet in the XLST box.
D) On the output link columns properties tab, identify an input column that contains the stylesheet URL.

2. A dataset was created earlier with one partition, with the Preserve Partitioning flag set. A subsequent job using a 2-node configuration file reads from that dataset, passing data to a Transformer stage with "Same" partitioning.
Which two statements are true? (Select two)

A) Inserting a Sort stage prior to the Transformer stage will force its parallel execution.
B) The DataStage job will abort.
C) Setting the Preserve Partitioning flag to "Clear" will generate two instances of the Transformer stage.
D) Setting the Preserve Partitioning flag to "Set" will run one instance of the Transformer stage.
E) DataStage will repartition the data and run one instance of the Transformer stage.

3. What three statements are true with regards to restartable mode for an FTP Enterprise stage? (Select three)

A) File URIs that were transferred completely are not transferred again.
B) Specify a checkpoint directory for the transfer using the -checkpointdir directory.
C) Checkpoint files are written to /^"checkpoint directory">/pftpJobid_ <"jobid number">.
D) Optionally specify a unique job_id for the transfer.
E) Specify the-restartable_transfer option.

4. A customer wants to select the entire order details for the largest transaction for each of 2 million customers from a 20 million row DB2 source table containing order history. Which parallel job design would satisfy this functional requirement?

A) Partition and sort the input to a RemoveDuplicates stage using the customer key and transaction amount columns. Remove duplicates on customer key.
B) Partition on customer key, sort on customer key and transaction amount, remove duplicates on customer key.
C) Use a Sort Aggregator stage with calculated column based on the maximum value of transaction amount column.
D) Partition and sort the input to a Filter stage by customer number. Filter with the clause "MAX(transaction_amount)".

5. Input rows to a Transformer contain a product name field and a field with a list of colors the product can be ordered with. The colors are separated by the pipe character (|). Here is an example of an input row: "Shirt"| ....| "Red, Blue, Black"|... For each input row, you want to output multiple output rows, one for each color in the list. For the above example input row, three rows are to be output, one per color: "Shirt" ... "Red", "Shirt" ... "Blue", "Shirt" ... "Black".
Which three operations will you need to accomplish this? (Choose three.)

A) Specify the following loop condition: @ITERATION <= n, where n is a stage variable initialized with number of loop iterations.
B) Use the Count() function over the ColorList field to determine the number of loop iterations.
C) Use the @ITERATION variable to determine which color in the ColorList field to extract using the Field function.
D) Use the LastRowInGroup() function to determine when the last color in the color list has been processed.
E) Use the SaveInputRecord() to save the input row for processing in the loop. Use the GetInputRecord() to extract the row for each iteration of the loop.

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