000-421の無料問題集（194題）、000-421認定試験参考書

IBM 000-421 問題集

試験コード：000-421

試験名称：InfoSphere DataStage v8.5

最近更新時間：2024-11-13

問題と解答：全194問

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質問 1：
What are two fundamental functions of the Information Server Source Code Integration based on the Eclipse Team framework? (Choose two.)
A. Rollback Changes
B. Replace from Source Code Control Workspace
C. Commit Changes
D. Send to Source Code Control Workspace
正解：B,D

質問 2：
You are using the Change Capture stage in your job design to identify changes made to the input link (before image) to obtain the results in the output link. This job will be using a multi-node configuration file when executed. By default, the Change Capture stage produces an output change link with which two characteristics? (Choose two.)
A. added column named Change_Code
B. Table Definition based on the after input link
C. Table Definition based on the keys of the input link
D. added column named Difference_Value
正解：A,B

質問 3：
You need to find the differences between the jobs in the Test project and theit older version in the Production project. You discover that the Production project is on another domain. What feature would find the differences in a job that is in a project on a different domain?
A. Cross Domain Compare
B. DataStage Version Control
C. Cross Project Compare
D. Export from the other domain and import into a project in the same domain as the one you are working in.
正解：C

質問 4：
A job design consists of an input sequential file, a Modify stage, followed by a Filter stage and an output SequentialFile stage. The job is run on an SMP machine with a configuration file defined with three nodes. No environment variables were set for the job. How many osh processes will this job create?
A. 9
B. 8
C. 16
D. 11
正解：A

質問 5：
An important top level Job Sequence has been modified. It controls a process flow consisting of sub Job Sequences, Routines and Parallel Jobs. You must set up a new project to test the top level Job Sequence. You are not allowed to move any repository objects that are not impacted by the top level Job Sequence.
What two options would identify only the repository objects impacted by the change made to the top level Job Sequence? (Select two)
A. On Export check Include dependencies of
B. Repository Advanced Find Where Used
C. Click Impact Analysis Icon on Designer Client Toolbar.
D. Select the top Level Job Sequence and Dependency of (deep).
正解：A,B

質問 6：
A job validates credit card numbers with a reference file using a Join stage, which is hash partitioned by card number. Examination of Job Monitor reveals that some partitions process many more rows than others. Assuming adequate hardware resources, which action can be used to improve the performance of the job?
A. Replace the Join with a Merge stage.
B. Use Round Robin partitioning on the stream and Entire partitioning on the reference.
C. Alter the number of partitions in the $APT_CONFIG_FILE.
D. Break the input file into multiple files.
正解：C

質問 7：
Which three statements are true about stage variables? (Select three)
A. Stage variables cannot contain NULL values.
B. Stage variables are executed before loop variables.
C. A derivation for a stage variable can reference stage variables that are later in the execution order.
D. Stage variables are executed after constraints but before derivations.
E. Stage variables retain their values between rows in the stage.
正解：A,C,E
解説: (Topexam メンバーにのみ表示されます)

質問 8：
What are two advantages of using Runtime Column Propagation (RCP)? (Choose two.)
A. Only columns that are defined as VarChar need RCP enabled.
B. RCP is not a feature of DataStage.
C. Only columns used in the data flow need to be defined.
D. Columns not specifically used in the flow are propagated as if they were.
E. Sequential files don't require schema files when using RCP.
正解：C,D

質問 9：
A scenario requires selecting only the most recent transactions for each of 2 million unique customers, from a 20 million row DB2 source table containing order history. Which parallel job design would satisfy this functional requirement?
A. Select all rows using the ODBC Connector stage, use a Sort Aggregator on customer number key to select the maximum order date.
B. Using the DB2 API stage, select all rows. Use a Sort stage with customer number and order date sort keys in ascending order, then Remove Duplicates with Last Duplicate to retain.
C. Using the Dynamic Relational stage, use custom SQL to select all DISTINCT customer numbers from the order history table.
D. Using the DB2 Enterprise stage, select all rows. Perform a unique Sort using customer number and order date sort keys in ascending order.
正解：B

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IBM InfoSphere DataStage v8.5 認定 000-421 試験問題:

1. A job is using the Load method in the DB2 and Oracle Enterprise stage for parallel loading into a single table. The job fails at runtime and you see there are new table rows added. What would explain this result? (Select two)

A) Commit size is smaller than source data.
B) Load operations are parallel.
C) Load operations are sequential.
D) Some partitions completed before failure.

2. A scenario requires selecting only the most recent transactions for each of 2 million unique customers, from a 20 million row DB2 source table containing order history. Which parallel job design would satisfy this functional requirement?

A) Select all rows using the ODBC Connector stage, use a Sort Aggregator on customer number key to select the maximum order date.
B) Using the DB2 API stage, select all rows. Use a Sort stage with customer number and order date sort keys in ascending order, then Remove Duplicates with Last Duplicate to retain.
C) Using the Dynamic Relational stage, use custom SQL to select all DISTINCT customer numbers from the order history table.
D) Using the DB2 Enterprise stage, select all rows. Perform a unique Sort using customer number and order date sort keys in ascending order.

3. You are running a DataStage job using a 2-node configuration file. How can a fixed-width single sequential file be read in parallel? (Choose two.)

A) Set the "Read From Multiple Nodes" optional property to a value greater than 1.
B) Set the "Number of Readers per Node" optional property to a value greater than 1.
C) Set the Execution Mode to the SequentialFile stage to "Parallel".
D) Use an external Source stage.
E) Specify a node constraint for the SequentialFile stage.

4. Your customer is using Source Code Control Integration for Information server and have tagged artifacts for version 1. You must create a deployment package from the version 1.
Before you create the package you will have to ensure the project is up to date with version 1.
What two things must you do to update the meta-data repository with the artifacts tagged as version 1? (Select two)

A) Right-click the asset and click the Team Import command.
B) Right-click the asset and click the Team command to update the Source Control Workspace with the asset.
C) Right-click the asset and click Replace From Source Control Workspace.
D) Right-click the asset and click the Deploy command.

5. Which two statements are true about project-level configuration for National Language Support (NLS)? (Select two)

A) Choose appropriate NLS map in the stage property.
B) Choose NVarChar for string fields.
C) Change the Parallel job project locale.
D) Change the Parallel job project map.

質問と回答：

質問 # 1
正解： A、B

質問 # 2
正解： B

質問 # 3
正解： A、B

質問 # 4
正解： A、B

質問 # 5
正解： A、D