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Short lessons that explain one thing properly. Search for a word, or pick a subject and read it through from the basics.

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4 of 58 lessons about Backups, intermediate level Show all lessons

Cyber security fundamentals

How attacks work, in plain words: ransomware, phishing, malware and the flaws they use.

1 of 8 lessons shown

  1. How ransomware attacks work The three stages of a ransomware attack, how attackers get in, why they go after backups, and what to put in place before it happens. Intermediate 3 min read

Backups and disaster recovery

Keeping a copy you can get back: the 3-2-1 rule, the kinds of backup, and backup against archive.

2 of 4 lessons shown

  1. Full vs incremental vs differential backups Three ways a backup decides what to copy each time, what each costs in time and storage, and what each one needs when you restore. Intermediate 3 min read
  2. Backup vs archive: what’s the difference? A backup is for getting back to work after a loss. An archive is for keeping records you must be able to find years later. Why you need both. Intermediate 3 min read

Cloud platforms and storage

The three big platforms side by side, and the kinds of storage they sell.

1 of 6 lessons shown

  1. Object storage vs block storage vs file storage Cloud providers sell three kinds of storage. How object, block and file storage each hold data, what each is used for and which one a job needs. Intermediate 3 min read

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