Linux Foundation LFCS Exam - Topic 5 Question 69 Discussion
Which of the following fields are available in both the global /etc/crontab file as well as in user-specific crontab files? (Select TWO correct answers)
B) Minute
A) Year
C) Username
D) Command
Linux Foundation LFCS Exam - Topic 5 Question 69 Discussion
Actual exam question for
Linux Foundation's
LFCS exam
Which of the following fields are available in both the global /etc/crontab file as well as in user-specific crontab files? (Select TWO correct answers)
Okay, I've got this. The minute and command fields are available in both the global and user-specific crontabs. The other options are not shared between the two.
I remember learning about crontabs in class, but I'm a bit fuzzy on the details. I'll need to review my notes to make sure I understand which fields are shared between the two.
Okay, let's see. The global crontab is system-wide, while user-specific crontabs are for individual users. I'm pretty sure the minute and command fields are common to both, but I'm not sure about the other options.
Hmm, this is a tricky one. The fact that the remote system is subscribing to a platform event makes me wonder if the "Remote Call In" pattern might work, where Salesforce calls out to the remote system. But then again, the question says the remote system manages the order lifecycle, so maybe "Fire and Forget" is better. I'm a bit torn on this one.
Hmm, I'm a bit confused on this one. I know ACLs are used for access control, but I'm not sure which specific element would be used for filtering internet traffic on a router.
Minute and command are the two fields that are common to both the global crontab and user-specific crontabs. C is just silly, and A is clearly not one of the correct answers.
Haha, imagine if the year field was an option! 'Run this command every year on January 1st at midnight.' That would be a bit overkill, don't you think? B and D are the right answers.
I'm pretty sure the username field is used to specify which user the cron job should run as, so C must be one of the correct answers. B and D are also correct.
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