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1. Which two properties can be set to read a fixed width sequential file in parallel? (Choose two.)
A) Set the Execution mode to "Parallel".
B) Set Read Method to "File Pattern".
C) Set the "Number of Readers Per Node" optional property to a value greater than 1.
D) Set the "Read from Multiple Nodes" optional property to a value greater than 1.
2. You are assigned to write a job that reads in a Sequential File, applies some business logic, and writes the results to a database. However, the layout of the input file will change from run to run. All of the columns will remain the same, but the order of the columns will change. Which feature of the Sequential File stage would allow you to accomplish this task?
A) Reject Mode
B) Schema File
C) First Line Is Column Names
D) Filter
3. You have a parallel job that does not scale beyond two nodes. After investigation you find that the data has been partitioned on a DoNotCall flag, which has only "Y" or "N" values, and you have an Aggregator stage that is accumulating totals based on this flag using a sort method. Which two techniques could you use to allow the job to scale? (Choose two.)
A) Change the aggregation method to hash to eliminate the blocking sort operation.
B) Change the preserve partitioning option on the stage ahead of the aggregator to clear partitioning.
C) Add an additional column for partitioning to result in additional data partitions.
D) Change the partitioning method to Round Robin; add a second Aggregator stage, running sequentially, that re-aggregates based on the DoNotCall flag.
4. In a job using Sequential File stage to write a sequential file, the ContactName column is nullable, but the "Null field value" property is left unspecified. The ContactName column has a Char(50) data type. What will happen if NULL is written to the ContactName column?
A) The empty string ("") will be written to the ContactName column.
B) The job will abort.
C) The row containing the NULL will be rejected.
D) The column will be padded with the character specified by the $APT_STRING_PADCHAR character.
5. Which two statements describe both File Sets and Data Sets? (Choose two.)
A) File and Data Sets contain header file and data files.
B) File and Data Sets preserve partitioning.
C) File and Data Sets are readable by external applications.
D) File and Data Sets are stored in internal format.
Solutions:
| Question # 1 Answer: C,D | Question # 2 Answer: B | Question # 3 Answer: A,D | Question # 4 Answer: C | Question # 5 Answer: A,B |
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