IBM Assessment: InfoSphere DataStage v8.5 認定 A2090-421 試験問題:
1. Which two job design techniques can be used to provide unique names to sequential output files that are used in multi-instance jobs? (Select two)
A) Create the file name(s) from values contained in a value file.
B) Prepend/append the Invocation ID to the file name.
C) Use the file name(s) from values contained in the data stream.
D) Use parameters to identify file names.
2. Which option is required to identify a particular job player processes?Which option is required to identify a particular job? player processes?
A) Set $APT_PM_SHOW_PIDS to true.
B) Log onto the server and issue the command "ps -ef | grep ds".
C) Set $APT_DUMP_SCORE to true.
D) Use the DataStage Director Job administration screen to display active player processes.
3. The purchase history record contains CustID, ProductID, ProductType and TotalAmount. You need to retain the record of greatest TotalAmount per CustID and ProductType using RemoveDuplicate stage. Which two statements accomplish this requirement? (Choose two.)
A) Hash-partition on CustID, ProductType and TotalAmount;
Sort on CustID, ProductType and TotalAmount.
B) Hash-partition on CustID and ProductType;
Sort on CustID, ProductType and TotalAmount.
C) Hash-partition on ProductType;
Sort on ProductType, CustID and TotalAmount.
D) Hash-partition on CustID;
Sort on CustID, ProductType and TotalAmount.
4. How must the input data set be organized for input into the join stage? (Choose two.)
A) Sorted in ascending order
B) Key partitioned
C) Hash partitioned
D) Unsorted
E) Entire partitioned
5. You would like to pass values into parameters that will be used in a variety of downstream activity stages within a job sequence. What are three valid ways to do this? (Choose three.)
A) Use local parameters.
B) Place a parameter set stage on the job sequence.
C) Use environment variables.
D) Use the UserVariablesActivity Stage to populate the local parameters from an outside source such as a file.
E) Check the "Propagate Parameters" checkbox in the Sequence Job properties.
質問と回答：
| 質問 # 1 正解： B、D | 質問 # 2 正解： A | 質問 # 3 正解： B、D | 質問 # 4 正解： A、B | 質問 # 5 正解： A、C、D |
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