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The CompTIA 220-1002 exam is one of two exams requires to obtain the CompTIA A+ (1000 series). This exam will focus on operating systems like Windows, OSX, and Linux.
BitLocker is a full drive encryption solution provided with Microsoft Windows operating systems. TrueCrypt and VeraCrypt are third party encryption solutions and do not come with Windows.
BitLocker is a full volume encryption feature included with Microsoft Windows versions starting with Windows Vista. It is designed to protect data by providing encryption for entire volumes. By default, it uses the Advanced Encryption Standard (AES) algorithm in cipher block chaining (CBC) or "xor–encrypt–xor (XEX)-based Tweaked codebook mode with ciphertext Stealing" (XTS) mode with a 128-bit or 256-bit key. CBC is not used over the whole disk; it is applied to each individual sector.
BitLocker - Wikipedia, the free encyclopediaGoogle's Chrome OS is unique from other operating systems in that it primarily uses the web browser as it's user interface (Google Chrome). On some devices users can also install Android apps from the Google Play Store. It is not possible to run applications available for other operating systems like Windows and Mac on Chrome OS (unless they have a web version).
Chrome OS (sometimes styled as ChromeOS) is a Linux-based operating system designed by Google. It is derived from the open-source Chromium OS and uses the Google Chrome web browser as its principal user interface. Google announced the project in July 2009, initially describing it as an operating system where applications and user data would reside in the cloud. Chrome OS was used primarily to run web applications.All Chromium OS and Chrome OS versions support progressive web applications (such as Google Docs or Microsoft Office 365), as well as web browser extensions (which can resemble native applications). Chrome OS (but not Chromium OS) from 2016 onwards can also run Android applications from the Play Store. Since 2018, Chromium OS/Chrome OS version 69 onwards also support Linux applications, which are executed in a lightweight virtual machine with a Debian Linux environment.The operating system is now rarely evaluated apart from the hardware that runs it.
Chrome_OS - Wikipedia, the free encyclopediaAndroid is an operating system primarily meant for mobile devices like touchscreens.
Android is a mobile operating system based on a modified version of the Linux kernel and other open-source software, designed primarily for touchscreen mobile devices such as smartphones and tablets. Android is developed by a consortium of developers known as the Open Handset Alliance, though its most widely used version is primarily developed by Google. It was unveiled in November 2007, with the first commercial Android device, the HTC Dream, being launched in September 2008. At its core, the operating system is known as Android Open Source Project (AOSP) and is free and open-source software (FOSS) primarily licensed under the Apache License. However most devices run on the proprietary Android version developed by Google, which ship with additional proprietary closed-source software pre-installed, most notably Google Mobile Services (GMS) which includes core apps such as Google Chrome, the digital distribution platform Google Play, and the associated Google Play Services development platform. Firebase Cloud Messaging is used for push notifications. While AOSP is free, the "Android" name and logo are trademarks of Google, which imposes standards to restrict the use of Android branding by "uncertified" devices outside their ecosystem.Over 70 percent of smartphones based on Android Open Source Project run Google's ecosystem (which is known simply as Android), some with vendor-customized user interfaces and software suites, such as TouchWiz and later One UI by Samsung and HTC Sense. Competing ecosystems and forks of AOSP include Fire OS (developed by Amazon), ColorOS by OPPO, OriginOS by Vivo, MagicUI by Honor, or custom ROMs such
Android_(operating_system) - Wikipedia, the free encyclopediaWhich option is a proprietary operating system made by Google for mobile devices like laptops and tablets?
Chrome OS is a proprietary operating system made by Google. It is mostly used on laptops known as Chromebooks. Android is not proprietary, the OS and it's source code can be found online for free. Many Android editions exist, some made by Google some made by others like Samsung or online communities.
Chrome OS (sometimes styled as ChromeOS) is a Linux-based operating system designed by Google. It is derived from the open-source Chromium OS and uses the Google Chrome web browser as its principal user interface. Google announced the project in July 2009, initially describing it as an operating system where applications and user data would reside in the cloud. Chrome OS was used primarily to run web applications.All Chromium OS and Chrome OS versions support progressive web applications (such as Google Docs or Microsoft Office 365), as well as web browser extensions (which can resemble native applications). Chrome OS (but not Chromium OS) from 2016 onwards can also run Android applications from the Play Store. Since 2018, Chromium OS/Chrome OS version 69 onwards also support Linux applications, which are executed in a lightweight virtual machine with a Debian Linux environment.The operating system is now rarely evaluated apart from the hardware that runs it.
Chrome_OS - Wikipedia, the free encyclopediaAndroid is a mobile operating system that uses a custom Linux kernel. You can imagine a kernel as the brain of an operating system. The type of kernel used in an OS determines what type of OS it is. Linux flavors use a Linux kernel, Windows editions use the Windows NT kernel, iOS and macOS use Apple's XNU kernel (XNU itself is based on Unix). Easy right?
Android is a mobile operating system based on a modified version of the Linux kernel and other open-source software, designed primarily for touchscreen mobile devices such as smartphones and tablets. Android is developed by a consortium of developers known as the Open Handset Alliance, though its most widely used version is primarily developed by Google. It was unveiled in November 2007, with the first commercial Android device, the HTC Dream, being launched in September 2008. At its core, the operating system is known as Android Open Source Project (AOSP) and is free and open-source software (FOSS) primarily licensed under the Apache License. However most devices run on the proprietary Android version developed by Google, which ship with additional proprietary closed-source software pre-installed, most notably Google Mobile Services (GMS) which includes core apps such as Google Chrome, the digital distribution platform Google Play, and the associated Google Play Services development platform. Firebase Cloud Messaging is used for push notifications. While AOSP is free, the "Android" name and logo are trademarks of Google, which imposes standards to restrict the use of Android branding by "uncertified" devices outside their ecosystem.Over 70 percent of smartphones based on Android Open Source Project run Google's ecosystem (which is known simply as Android), some with vendor-customized user interfaces and software suites, such as TouchWiz and later One UI by Samsung and HTC Sense. Competing ecosystems and forks of AOSP include Fire OS (developed by Amazon), ColorOS by OPPO, OriginOS by Vivo, MagicUI by Honor, or custom ROMs such
Android_(operating_system) - Wikipedia, the free encyclopediaWindows 10 comes in several different editions: Home, Pro, Pro for Workstations, S, Education, Pro Education, Enterprise, Enterprise LTSC, X, IoT and Team. The remaining options (with Bing, Starter and Ultimate) have been used in past Windows editions but are not available with Windows 10.
Windows 10 has several editions, all with varying feature sets, use cases, or intended devices. Certain editions are distributed only on devices directly from an original equipment manufacturer (OEM), while editions such as Enterprise and Education are only available through volume licensing channels. Microsoft also makes editions of Windows 10 available to device manufacturers for use on specific classes of devices, including IoT devices and previously marketed Windows 10 Mobile for smartphones.
Windows_10_editions - Wikipedia, the free encyclopediaWindows 8 and 8.1 64-bit support a maximum of 128GB of memory. Other Windows 8 editions go as high as 512GB. This is a limit imposed by Microsoft and not a limit with 64-bit operating systems. In theory a 64-bit operating system can go as high as 16 Exabytes!
The term End of Life (EOL) refers to a product or feature that is no longer supported by the vendor. While it may still function no new updates, security fixes or support will be offered by the vendor. Most software like applications and operating systems have an EOL date.
An end-of-life product (EOL product) is a product at the end of the product lifecycle which prevents users from receiving updates, indicating that the product is at the end of its useful life (from the vendor's point of view) At this stage, a vendor stops the marketing, selling, or provision of parts, services or software updates for the product (The vendor may simply intend to limit or end support for the product) In the specific case of product sales, a vendor may employ the more specific term "end-of-sale" ("EOS") All users can continue to access discontinued products, but cannot receive security updates and technical support
End-of-life_(product) - Wikipedia, the free encyclopediaWhat type of OS installation type updates an OS and can keep existing files, applications and settings?
An in-place upgrade is an installation type that updates an existing operating system while keeping things like files, applications and settings from the existing operating system.
Certain business focused features like joining an Active Directory domain are not supported in all Windows editions. Windows 7 Home Premium does not include support for joining Active Directory domains.
An application built for one operating system cannot always be run on other operating systems. It will vary from application to application and support for each operating system must be enabled by the developers. Linux and macOS do have many similarities making it common for applications to be supported on both, but it is not automatic or guaranteed.
A clean installation will completely delete existing data and partitions on the chosen disk. It can be used to re-install the previous OS with a clean state, upgrade an OS or switch operating system types (e.g. from Windows to Linux). If data needs to be kept it should be backed up to a different drive or cloud provider first.
A coworker asks for your help troubleshooting an issue. They have installed a new copy of Windows 10 Professional and noticed the operating system only shows 4GB of memory when there is 16GB installed in the computer. What is most likely the issue?
Many operating systems come in 32-bit and 64-bit versions. 32-bit versions are becoming less common but can still be found. 32-bit operating systems can only address up to 4GB of memory.
In computer architecture, 32-bit computing refers to computer systems with a processor, memory, and other major system components that operate on data in 32-bit units. Compared to smaller bit widths, 32-bit computers can perform large calculations more efficiently and process more data per clock cycle. Typical 32-bit personal computers also have a 32-bit address bus, permitting up to 4 GB of RAM to be accessed, far more than previous generations of system architecture allowed.32-bit designs have been used since the earliest days of electronic computing, in experimental systems and then in large mainframe and minicomputer systems. The first hybrid 16/32-bit microprocessor, the Motorola 68000, was introduced in the late 1970s and used in systems such as the original Apple Macintosh. Fully 32-bit microprocessors such as the HP FOCUS, Motorola 68020 and Intel 80386 were launched in the early to mid 1980s and became dominant by the early 1990s. This generation of personal computers coincided with and enabled the first mass-adoption of the World Wide Web. While 32-bit architectures are still widely-used in specific applications, the PC and server market has moved on to 64 bits with x86-64 since the mid-2000s with installed memory often exceeding the 32-bit 4G RAM address limits on entry level computers. The latest generation of mobile phones have also switched to 64 bits.
32-bit_computing - Wikipedia, the free encyclopediaPreboot Execution Environment (PXE) is a special boot type that downloads an image from a server on the network. Fixed Drive is a boot type that uses an internal HDD or SSD. eSata is a type of external drive attachment. FTP is a protocol for transferring files and not a boot type.
In computing, the Preboot eXecution Environment, PXE (most often pronounced as pixie, often called PXE Boot/pixie boot.) specification describes a standardized client–server environment that boots a software assembly, retrieved from a network, on PXE-enabled clients. On the client side it requires only a PXE-capable network interface controller (NIC), and uses a small set of industry-standard network protocols such as DHCP and TFTP. The concept behind the PXE originated in the early days of protocols like BOOTP/DHCP/TFTP, and as of 2015 it forms part of the Unified Extensible Firmware Interface (UEFI) standard. In modern data centers, PXE is the most frequent choice for operating system booting, installation and deployment.
Preboot_Execution_Environment - Wikipedia, the free encyclopediaTrue or false:
> Bitlocker is available for Microsoft Windows while EFS is a comparable disk encryption solution for Linux and Mac
Both Bitlocker and Encrypting File System (EFS) are solutions available to Microsoft Windows operating systems. Bitlocker encrypts an entire disk while EFS is a file-level encryption technology.
The Encrypting File System (EFS) on Microsoft Windows is a feature introduced in version 3.0 of NTFS that provides filesystem-level encryption. The technology enables files to be transparently encrypted to protect confidential data from attackers with physical access to the computer. EFS is available in all versions of Windows except the home versions (see Supported operating systems below) from Windows 2000 onwards. By default, no files are encrypted, but encryption can be enabled by users on a per-file, per-directory, or per-drive basis. Some EFS settings can also be mandated via Group Policy in Windows domain environments.Cryptographic file system implementations for other operating systems are available, but the Microsoft EFS is not compatible with any of them. See also the list of cryptographic file systems.
Encrypting_File_System - Wikipedia, the free encyclopediaWindows 8 has 4 primary editions: Windows 8 (Core), Windows 8 Pro, Windows 8 Enterprise and Windows 8 RT. Windows 8 (Core) is often marketed as simply Windows 8 but many technical docs and other sources refer to it as Core to avoid confusion.
Windows 8, a major release of the Microsoft Windows operating system, was available in four different editions: Windows 8 (Core), Pro, Enterprise, and RT. Only Windows 8 (Core) and Pro were widely available at retailers. The other editions focus on other markets, such as embedded systems or enterprise. All editions support 32-bit IA-32 CPUs and x64 CPUs.
Windows_8_editions - Wikipedia, the free encyclopediaAn Unattended installation can be used to install Windows 10 without the usual user interface and configuration wizard. This is done by creating a new installer with an answer file which is used to configure the install without prompting the user to answer questions.
/Applications is the location of most applications installed on Mac OSX and macOS. C:\Program Files\ and C:\Program Files (x86)\ are similar folders on Windows OS editions. Linux operating systems can greatly vary, but on many you can find many applications at /usr/bin.
True or false:
> BranchCache is a feature available to Windows operating systems that allows reading and writing to cached files in the event connectivity is lost to the file server.
BranchCache allows files to be read even when a connection cannot be made with the file server. For example, if a warehouse loses connectivity to the file server in the corporate office hundreds of miles away BranchCache could be used to allow warehouse employees to read locally cached files. BranchCache does not support writing to files unless connectivity to the file server can be established.
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