Discover the correct command to effectively clear all dump data sets in mainframe systems. Learn how to use the DD CLEAR command with the appropriate parameters to ensure efficient management of your system’s dump data sets.
Table of Contents
Question
Which command is used to clear all dump data sets.
A. DD CLEAR,DSN
B. DD CLEAR,DSN=A
C. DD CLEAR,DSN=ALL
D. None
Answer
The correct command to clear all dump data sets in a mainframe system is:
C. DD CLEAR,DSN=ALL
Explanation
This command utilizes the DD (Data Definition) statement, which is used to define and manage datasets in mainframe systems. The CLEAR parameter indicates that the specified datasets should be cleared or deleted. By specifying DSN=ALL, you are instructing the system to clear all dump data sets.
Here’s a more detailed explanation of the other options:
A. DD CLEAR,DSN – This command is incomplete as it does not specify which dataset(s) to clear. The DSN parameter requires a value to identify the dataset(s).
B. DD CLEAR,DSN=A – This command would attempt to clear a dataset named “A”. However, it does not clear all dump data sets as required by the question.
D. None – This option suggests that none of the provided commands are correct, which is not accurate in this case.
In summary, the DD CLEAR,DSN=ALL command is the most appropriate choice to clear all dump data sets in a mainframe system. It ensures that all relevant datasets are deleted, freeing up storage space and maintaining optimal system performance.
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