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If you want to work with partitions, there's a choice. Either you use the old way, MBR,

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or you go for the new way, which is GPT. Let's talk about it. MBR is Master Boot Record.

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It was invented in 1981, and it works with the Basic Input-Output System, or BIOS, to

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store partition information in a 512 bytes on-disk area, as well as the Bootstrap Loader.

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The Bootstrap Loader is taking care of loading your operating system, and with this Bootstrap

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Loader, there are 64 bytes remaining for partitions. And that gives you place for four primary

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partitions with a size of 16 bytes each to address metadata information about these partitions.

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To address more partitions, extended and logical partitions are needed. So the trick is that

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one of the primary partitions is used as an extended partition, and within the extended

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partition, you can create logical partitions. Now, in MBR, you can address a maximum of

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two Tebby bytes of storage, and that is for the simple reason that there is only 64 bits,

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and in 64 bits, well, addresses that can be used are maximized. Storage is limited.

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On-disk is the recommended utility to create MBR partitions. GWT Partition Table, or GPT,

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was developed to manage the shortcomings of MBR. It was introduced in 2010, and it offers

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larger area to store up to 128 partitions in total. Because in GPT, many partitions

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can be stored, there is no more need for extended partitions. And GPT is the default on systems

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that work with the Unified Extensible Firmware Interface, or UEFI, which is the default on

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all physical systems nowadays. PARTET or GDISC are the tools to work with GPT partitions,

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but nowadays, FDISC has been modified to manage GPT partitions also. That depends on your

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distribution. If you're on Red Hat, you can use FDISC, but if I may give you a tip for

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your exam, make sure that you're also familiar with the PARTET utility. There might be some

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questions about them.