This deep dive covers Deep Dive: Backup Types within Utility Software for GCSE Computer Science. Revise Utility Software in 3.4 Computer Systems for GCSE Computer Science with 15 exam-style questions and 10 flashcards. This topic appears regularly enough that it should still be part of a steady revision cycle. It is section 4 of 7 in this topic. Use this deep dive to connect the idea to the wider topic before moving on to questions and flashcards.
Deep Dive: Backup Types
Full Backup: Copies everything. Takes longest but simplest to restore.
Incremental Backup: Only copies files changed since last backup. Fast but needs all incremental backups to restore.
Differential Backup: Copies files changed since last full backup. Balance of speed and restore simplicity.
3-2-1 Rule: 3 copies, 2 different media types, 1 offsite (cloud)
Practice questions for Utility Software
Which of the following is an example of utility software?
Explain what defragmentation software does and why it improves the performance of a hard disk drive.