Ext4 has the Max file size of ?
- 16 TiB (for 16k block filesystem)
- 16 TiB (for 8k block filesystem)
- 16 TiB (for 4k block filesystem)
- 16 TiB (for 28k block filesystem)
Ext4 has the Max file size of ?
Tuesday, May 7, 2019
Exchange Server 2016 is not supported on this server platform.
Exchange Server 2016 is not supported on this server platform.
- Windows Server 2012 x64
- Windows Server 2016 x64
- Windows Server 2016 Core
- Windows Server 2012 R2 x64
EXPLANATION
We don't support the installation of Exchange 2016 on a computer that's running Windows Server Core or Nano Server. The Windows Server Desktop Experience feature needs to be installed. To install Exchange 2016, you need to do one of the following to install the Desktop Experience on Windows Server prior to starting Exchange 2016 Setup:Windows Server 2012 and Windows Server 2012 R2: Run the following command in Windows PowerShell
Install-WindowsFeature Server-Gui-Mgmt-Infra, Server-Gui-Shell -Restart
Windows Server 2016: Install Windows Server 2016 and choose the
Desktop Experience installation option. If a computer is running
Windows Server 2016 Core mode and you want to install Exchange 2016 on
it, you'll need to reinstall the operating system and choose the Desktop
Experience installation option.SOURCE
https://docs.microsoft.com/en-us/exchange/plan-and-deploy/system-requirements?view=exchserver-2016Tuesday, April 30, 2019
What is/was the purpose for using a Dynamic Disk Overlay?
What is/was the purpose for using a Dynamic Disk Overlay?
- Software to increase existing disk drives speed.
- Software to hide a disk drive from hackers.
- A dust cap for the disk drive to be used when cleaning the system.
- Software technique to extend a system BIOS that does not support logical block addressing (LBA).
EXPLANATION
Dynamic drive overlay (DDO, also referred to as: software translation driver) is a software technique to extend a system BIOS that does not support logical block addressing (LBA) to access drives larger than 504 MiB. The technology was continued with similar types of problems up to the LBA-48 extension.
The most widespread vendor for such an extension is the company Ontrack which is licensing its DDO component to several of the major hard disk vendors for integration into their management tools and into their products.
The application of a Dynamic Drive Overlay (DDO), as licensed to Samsung Corporation for example, by Kroll Ontrack's version in their Disk Manager program is for the installation of various hard drives (Ultra/Super IDE/Parallel ATA) in computers that have older BIOS chips that do not recognize hard disk drives larger than 137.4 Gigabytes.[1] The interface is a software program that is loaded at start-up by the computer and augments the BIOS code, thus allowing the system to recognize and read areas of the hard disk drive that normally would not be accessible by the older BIOS.
This technique overrides some of the motherboard BIOS' hard disk controller driver in RAM. To allow access to the full size of any hard disk the software must be loaded before other programs try to access the upper parts of a disk with a critical size. To ensure that this extension gets loaded early most often the boot disk's master boot record is modified and the software installed at the beginning of the disk.
SOURCE
https://en.wikipedia.org/wiki/Dynamic_drive_overlayFriday, April 26, 2019
What settings in VMware would you use to keep VMs together or separate?
What settings in VMware would you use to keep VMs together or separate?
- Affinity rules
- NSX
- VDS
- Snapshots
EXPLANATION
An affinity rule is a setting that establishes a relationship between two or more VMware virtual machines (VMs) and hosts.
Affinity rules and anti-affinity rules tell the vSphere hypervisor platform to keep virtual entities together or separated. The rules, which can be applied as either required or preferred, help reduce traffic across networks and keep the virtual workload balanced on available hosts.
If two virtual machines communicate frequently and should share a host, the VMware admin can create a VM-VM affinity rule to keep them together. Conversely, if two resource-hungry VMs would tax a host, an anti-affinity rule will keep those VMs from sharing a host.
Affinity rules and anti-affinity rules can be applied between VMs and hosts as well, and a VM can be subject to VM-VM affinity rules and VM-Host affinity rules at the same time. Affinity and anti-affinity rules in a vSphere environment can conflict with one another. For example, two VMs with an anti-affinity relationship may both be linked to a third VM via an affinity rule, but they cannot share a host. Optional affinity rule violation alarms can alert administrators to these events.
SOURCE
https://searchvmware.techtarget.com/definition/affinity-rulesIn Windows, how do you enter ASCII characters that are not displayed on a keyboard?
In Windows, how do you enter ASCII characters that are not displayed on a keyboard?
Ctrl-Alt + keyboard keys corresponding to ASCII
Alt + ASCII decimal value on number pad
Shift-Alt + keyboard keys cooresponding to ASCII
Alt + ASCII decimal value using keyboard top
EXPLANATION
I have used Alt + ASCI decimal value entered on the number pad for many years for various reasons. It's a nice way to hide characters in passwords or files you want to keep secure. A password with an Alt-255 (null) character will display as a space and baffle even the most experienced hacker. While working in a public school system, my remote software client was VNC and it stored the password in hexidecimal format in the registry which above average students mightpossibly be able to decode. But when ASCII 255 characters are found, they're totally confused. I have also named programs and batch files with just the null character plus extension to make it hidden. I have also used ASCII extended box and line characters to make things look nicer in batch programs, but is limited with newer versions of Windows that lack ANSI.sys not being standard (it can be enabled).
SOURCE
https://support.office.com/en-us/article/insert-ascii-or-unicode-latin-based-symbols-and-characters-d13f58d3-7bcb-44a7-a4d5-972ee12e50e0Wednesday, April 24, 2019
What do you dial to bring up the IMEI number on a mobile phone?
What do you dial to bring up the IMEI number on a mobile phone?
- #69#*
- *#123#
- *#06#
- #044*#
EXPLANATION
Every phone or Mobile Broadband device has a unique 15 digit code, called an IMEI number. You might need to find your IMEI number if you want to unlock your device to use with other networks, or for someinsurance policies. You can find your IMEI in the following ways: by entering *#06# on your phone's call screen.
SOURCE
http://support.three.co.uk/SRVS/CGI-BIN/WEBISAPI.dll/,/?New,Kb=Mobile,Ts=Mobile,T=CaseDoc,Case=Obj(6589)Which operating system for Exchange 2019 is unsupported:
Which operating system for Exchange 2019 is unsupported:
- Windows Server 2008 R2
- Windows Server 2012 R2
- All of them
- Windows Server 2012
EXPLANATION
The supported operating system for Exchange 2019 is only Windows Server 2019 Standard or Datacenter. Windows Server 2019 Core edition isalso fully supported and recommended.
