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Chapter 13
| Term | Definition |
|---|---|
| critical applications | Applications that are required to keep a business functioning and that require alternative solutions if they are not functioning. |
| surge protector | A device that protects against voltage spikes by blocking or grounding excessive voltage. Also called surge suppressor. |
| uninterruptible power supply (UPS) | A device that raises the voltage when it drops during brownouts. |
| system image | The backup of the entire Windows volume; it can also include backups of other volumes. The system image works only on the computer that created it, and is created using Windows 10/8 File History or the Windows Backup and Restore utility. |
| File History | A Windows 10/8 utility that can schedule and maintain backups of data. It can also create a system image for backward compatibility with Windows 7. |
| Backup and Restore | The Windows utility used to create and update scheduled backups of user data and the system image. |
| custom refresh image | In Windows 8, an image of the entire Windows volume, including the Windows installation. The image can be applied during a Windows 8 refresh operation. |
| active recovery image | In Windows 8, the custom refresh image of the Windows volume that will be used during a refresh of the Windows installation. Also see custom refresh image. |
| System Protection | A utility that automatically backs up system files and stores them in restore points on the hard drive at regular intervals and just before you install software or hardware. |
| restore points | A snapshot of the Windows system, usually made before installation of new hardware or applications. Restore points are created by the System Protection utility. |
| System Restore | A Windows utility used to restore the system to a restore point. |
| partition table | A table that contains information about each partition on the drive. For MBR drives, the partition table is contained in the Master Boot Record. |
| primary partitions | A hard disk partition that can be designated as the active partition. An MBR drive can have up to three primary partitions. In Windows, a GPT drive can have up to 128 primary partitions. Compare with extended partition. |
| extended partition | On an MBR hard drive, the only partition that can contain more than one logical drive. In Windows, a hard drive can have only a single extended partition. Compare with primary partition. |
| logical drives | On an MBR hard drive, a portion or all of a hard drive’s extended partition that is treated by the operating system as though it were a physical drive or volume. Each logical drive is assigned a drive letter, such as drive F, and contains a file system. |
| Globally Unique Identifier Partition Table (GUID or GPT) | The GUID Partition Table is a standard for the layout of partition tables of a physical computer storage device. |
| high-level formatting | The process creates the boot record, file system, and root directory on a hard drive volume or other storage device. |
| NTFS (New Technology file system) | A file system that supports encryption, disk quotas, and file and folder compression; it is required for the volume that holds a Windows installation. |
| Resilient File System (ReFS) | A file system that offers excellent fault tolerance and compatibility with virtualization and data redundancy in a RAID system; ReFS is included in Windows 10 Pro for Workstations. |
| NFS (Network File System) | A client/server distributed file system that supports file sharing over a network across platforms. For example, a Linux-hosted NFS server can serve up file shares to Windows workstations on the network. Windows 10 supports NFS client connections. |
| exFAT | A file system suitable for large external storage devices and compatible with Windows, macOS, and Linux. |
| FAT32 | A file system suitable for low-capacity hard drives and other storage devices and supported by Windows, macOS, and Linux. |
| active partition | For MBR hard drives, the primary partition on the drive that boots the OS. Windows calls the active partition the system partition. |
| EFI System Partition (ESP) | For a GPT hard drive, the bootable partition used to boot the OS; ESP contains the boot manager program for the OS. |
| system partition | The active partition of the hard drive, which contains the boot loader or boot manager program and the specific files required to start the Windows launch. |
| BootMgr | The file name of the boot manager program responsible for loading Windows on a BIOS system. The file has no file extension. |
| boot partition | The hard drive partition where the Windows OS is stored. The system partition and the boot partition may be different partitions. |
| basic disk | The term Windows uses to describe a hard drive when it is a stand-alone drive in the system. |
| mounted drive | A volume that can be accessed by way of a folder on another volume so that the folder has more available space. |
| mount point | A folder that is used as a shortcut to space on another volume, which effectively increases the size of the folder to the size of the other volume. |
| dynamic disk | A way to partition one or more hard drives so that they can work together to increase space for data storage or to provide fault tolerance or improved performance. |
| dynamic volumes | A volume type used with dynamic disks by which you can create a single volume that uses space on multiple hard drives. |
| simple volume | A type of volume used on a single hard drive. |
| striping | Striping splits ("stripes") data evenly across two or more disks, without parity information, redundancy, or fault tolerance. |
| mirroring | Copying one hard drive to another as a backup. |
| software RAID | Using Windows to implement RAID. The setup is done using the Disk Management utility. |
| hardware RAID | One of two ways to implement RAID. Hardware RAID is more reliable and performs better than software RAID, and is implemented using BIOS/UEFI on the motherboard or a RAID controller card. |
| array | A group of hard drives that work together to provide a single storage volume. |
| Storage Spaces | A Windows utility that can create a storage pool using any number of internal or external backup drives. The utility is expected to replace Windows software RAID. |
| resiliency | In Windows Storage Spaces, the degree to which the configuration can resist or recover from drive failure. |
| thin provisioning | A technique used by Storage Spaces whereby virtual storage space can be made available to users who do not have physical storage allotted to them. |
| defragment | A drive maintenance procedure that rearranges fragments or parts of files on a magnetic hard drive so each file is stored on the drive in contiguous clusters. |
| cluster | On a magnetic hard drive, one or more sectors that constitute the smallest unit of space on the drive for storing data (also referred to as a file allocation unit). Files are written to a drive as groups of whole clusters. |
| file allocation unit | On a magnetic hard drive, one or more sectors that constitute the smallest unit of space on the drive for storing data (also referred to as a file allocation unit). Files are written to a drive as groups of whole clusters. |
| slack | Wasted space on a hard drive caused by not using all available space at the end of a cluster. |
| trim | To erase entire blocks of unused data on an SSD so that write operations do not have to manage the data. |
| Disk Cleanup | A Windows utility to delete temporary files and free up space on a drive. |
| Defragment and Optimize Drives | Microsoft Drive Optimizer is a utility in Microsoft Windows designed to increase data access speed by rearranging files stored on a disk to occupy contiguous storage locations, a technique called defragmentation. |
| wildcard | An * or ? character used in a command line that represents a character or group of characters in a file name or extension. |
| help | A Windows command that gives information about any Windows command. |
| dir | The Windows command to list files and directories. |
| cd (change directory) | The Windows command to change the current default directory. |
| copy | The Windows command to copy a single file, a group of files, or a folder and its contents. |
| xcopy | A Windows command more powerful than the copy command that is used to copy files and folders. |
| robocopy (robust file copy) | A Windows command that is similar to and more powerful than the xcopy command; it is used to copy files and folders. |
| FAT (file allocation table) | A table on a hard drive or other storage device used by the FAT file system to track the clusters used to contain a file. |
| master file table (MFT) | The database used by the NTFS file system to track the contents of a volume or logical drive. |
| defrag | The Windows command that examines a magnetic hard drive for fragmented files and rewrites these files to the drive in contiguous clusters. |
| shutdown | The Windows command to shut down the local computer or a remote computer. |
| PowerShell | A command-line interface (CLI) that processes objects called cmdlets, which are pre-built programs built on the .NET Framework, rather than processing text in a command line. |
| cmdlets | Prebuilt scripts (pronounced “command-lets”) written for Windows PowerShell, a commandline interface expected to replace the command prompt window. |
| alias | A nickname or shortcut for a cmdlet in Windows PowerShell. For example, dir is an alias for the Get-ChildItem cmdlet. |
| Windows Subsystem for Linux (WSL) | A Windows component that supports the Bash on Ubuntu on Windows shell. |
| Bash on Ubuntu on Windows | A Windows 10 shell that uses Ubuntu Bash commands. Ubuntu is a popular distribution of Linux. |
| Remote Desktop Connection (RDC) | A Windows tool that gives a user access to a Windows desktop from anywhere on the Internet. |
| mstsc.exe | A command (mstsc.exe) that allows you to remote in to a host computer using Remote Desktop Connection. |
| Microsoft Terminal Services Client | It allows a user to remotely log into a networked computer running the terminal services server. |
| Remote Assistance | A Windows tool that allows a technician to remote in to a user’s computer while the user remains signed in, retains control of the session, and can see the screen. This is helpful when a technician is troubleshooting problems on a computer. |
| dynamic volume | A volume type used with dynamic disks by which you can create a single volume that uses space on multiple hard drives. |