UnixReview.com: Top 50 Things to Know to Pass the Sair Exam 102

"Last month, I took a detailed look at the 101 (Installation and Configuration) exam from Sair. This month, I turn to Exam 102 (System Administration) and give it the same scrutiny. It is one of the four Sair exams you must pass to become a Linux Certified Administrator (LCA). Passing Exam 102 will earn you the designation of Linux Certified Professional (LCP)."

"1. ext2 is the native filesystem for Linux. It was created by Rémy Card and consists of the superblock, inodes (also known as index nodes), disk blocks allocated, and disk blocks unallocated (free). e2fsck can be used to check for consistency within the filesystem through a series of five operations, or passes."

"2. cron jobs are scheduled via entries in the crontab file. Every entry consists of six fields:

1. -- The minute the job is to run.
2. -- The hour the job is to run.
3. -- The day of the month the job is to run.
4. -- The month the job is to run.
5. -- The day of the week the job is to run.
6. -- The location of the job itself."

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