Consider a customer with multiple environments, Development, Test and Production. Which statement is TRUE?
Correct Answer: D
A package can contain an improved version of a job which will replace the old one. This is useful for maintaining and updating software in multiple environments like Development, Test, and Production by allowing the deployment of new versions with enhanced features or fixes.
Which of the following is TRUE when using a data set created with a 4 node config file?
Correct Answer: A
Data sets in a 4 node config file are generally operating system files. They are created and managed by the underlying operating system, making this the true statement out of the provided options.
Which of the following is NOT TRUE about the DataStage job score?
Correct Answer: C
The DataStage job score includes operators inserted at runtime, helps determine the number of operating system processes, and outlines the connection topology between adjacent operators and persistent data sets. However, it does not report the amount of memory used by the inter-operator transport buffers.
Given this configuration file:
Which of the following describes the resulting behavior for a job consisting of Row Generator -> data set?
Correct Answer: B
In a configuration file for parallel job execution, the conductor node is responsible for starting the job and managing its execution. The section leader process oversees the execution on each node, and player processes are the actual workhorses performing the job tasks. In the configuration provided, 'is1' serves as the conductor node, and 'is2' is another processing node. Therefore, the Conductor process gets executed on 'is1', while the section leader and player processes get executed on 'is2'. This aligns with option B, where the conductor process is on 'is1', and the section leader and player processes run on 'is2'.
Given this score:
It runs 3 processes on 2 nodes.
How does the job run?
Correct Answer: B
The job runs on two physical nodes and a single logical node. This is indicated by the presence of two nodes, datastage.ibm.com.1 and datastage.ibm.com.2, but utilizing a single logical node structure for running the processes. The score indicates the parallel nature of tasks which are distributed across the specified physical nodes.