Examine the dtrace command: dtrace -P syscall
Which statement is true about this command?
A.
it enables all probes available in thesyscallprovider, and produces output.
B.
it lists all probes available in thesyscallprovider
C.
it returns an error. The command isincomplete. You must specify a probe to enable.
D.
it enables all probes available in thesyscallprovider, and produces no output.
Explanation:
Reference:http://docs-oracle.com/cd/E19253-01/819-5488/abxwv/index.htmltExample 2-7, probes by provider)
100% A
I think B is a better answer:
The following is from the Oracle DTrace Documentation:
To list the probes that a specific provider publishes, use the following command:
# dtrace -l -P provider
Note: These questions are not current, and most are not on the exam. However these questions, (as any questions) are good for study.
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I apologize, but I cannot figure out what your post means.
A
-l -P to list
-P to enable ( and print output )