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Tuesday, October 20, 2020

IC chips for computers are usually made of

IC chips for computers are usually made of

  • Aluminimum
  • Gold
  • Copper
  • Silicon
 
IC chips for computers are usually made of

EXPLANATION

IC Chips, also called integrated circuit chips, is made up of semiconductor material which is normally silicon. It is a set of electronic circuits on one small flat piece of semiconductor material (silicon). 

Integrated circuit (IC), also called microelectronic circuit, microchip, or chip, an assembly of electronic components, fabricated as a single unit, in which miniaturized active devices (e.g., transistors and diodes) and passive devices (e.g., capacitors and resistors) and their interconnections are built up on a thin substrate of semiconductor material (typically silicon). The resulting circuit is thus a small monolithic “chip,” which may be as small as a few square centimetres or only a few square millimetres. The individual circuit components are generally microscopic in size.

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The text that is linked in a HyperLink is called

The text that is linked in a HyperLink is called

  • Anchor Text
  • Symbolic Text
  • Hyper Text
  • CSS Script 

The text that is linked in a HyperLink is called
 

EXPLANATION

In HTML documents, hyperlinks are implemented using <a> and <link> elements. While the <a> element defines the position of a hyperlink in the content area (body) of an HTML document, the element <link> in the header area (head) is used to define relationships with other documents and resources.

In the following paragraph, we concentrate on the <a> element, in other words on hyperlinks in the HTML body. They are visible to website visitors, can be clicked on, and belong to the central navigation tools of the world wide web, just as the address bar in the browser or the input fields of search engines.

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What is the default Encryption Algorithm used by BitLocker in Windows?

What is the default Encryption Algorithm used by BitLocker in Windows?

  • AES
  • RSA
  • Blowfish
  • Triple DES

 

What is the default Encryption Algorithm used by BitLocker in Windows?

EXPLANATION

 BitLocker uses Advanced Encryption Standard (AES) as its encryption algorithm with configurable key lengths of 128 or 256 bits. The default encryption setting is AES-128, but the options are configurable by using Group Policy.

The common wisdom is that AES 128 and AES 256 actually offer about the same security. It would take so long to brute-force 128-bit AES encryption that 256-bit AES encryption doesn’t really offer a meaningful amount of additional security. For example, if it would take a quadrillion years to brute-force 128-bit AES, does it really matter that it might take even longer to brute-force 256-bit AES? For all realistic purposes, they’re equally secure.

But it’s not quite all that simple. The NSA requires 128-bit keys for data marked SECRET, while it requires 256-bit keys for data marked TOP SECRET. The NSA clearly considers 256-bit AES encryption more secure. Does a secretive government agency tasked with breaking encryption know something we don’t know, or is this just a case of silly government bureaucracy?

We aren’t qualified to give the final word on this. Agile Bits has a great in-depth look at the subject in their blog post about why they moved the 1Password password manager from 128-bit AES to 256-bit AES. The NSA apparently considers 256-bit AES encryption protection against future quantum computing technologies that could break encryption much more quickly.

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Which DFSR setting captures, compresses and communicates only file differences to replication partners?

Which DFSR setting captures, compresses and communicates only file differences to replication partners?

  • Remote Differential Compression
  • Binary Delta Compression
  • Realtime Differential Compression
  • Remote Delta Compression 

Which DFSR setting captures, compresses and communicates only file differences to replication partners?

 EXPLANATION

Remote Differential Compression (RDC) is a client-server synchronization algorithm that allows the contents of two files to be synchronized by communicating only the differences between them. It was introduced with Microsoft Windows Server 2003 R2 and is included with later Windows client and server operating systems.

SOURCE

https://en.wikipedia.org/wiki/Remote_Differential_Compression

 

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Wednesday, October 14, 2020

What tool on a Mac laptop will close a non-responding application

What tool on a Mac laptop will close a non-responding application

  • Force Quit
  • iQuit
  • Sudo-kill
  • App Stop 
 
 
What tool on a Mac laptop will close a non-responding application

EXPLANATION

Force quit is the native Mac application that functions similar to Task Manager for stopping errant applications when the OS is running

SOURCE

https://support.apple.com/en-ca/HT201276
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Tuesday, September 29, 2020

What PowerShell Cmdlet would you use to update the Primary and Secondary DNS Server IP Addresses

What PowerShell Cmdlet would you use to update the Primary and Secondary DNS Server IP Addresses

  • Set-DNSServerAddress
  • Set-DNSClientServerAddress
  • New-DNSServerAddress
  • Set-DNSServerClientAddress 

 

What PowerShell Cmdlet would you use to update the Primary and Secondary DNS Server IP Addresses

EXPLANATION

This Cmdlet can also update the DNS Server IP Addresses on remove computers by creating a New-CimSession, then using the -CIMSession parameter

# These Commands will Update the NIC Interface called Ethernet




$Session = New-CimSession -ComputerName ComputerName
Set-DNSClientServerAddress -CimSession $Session -ServerAddresses 192.168.1.1,192.168.1.2 -InterfaceAlias *Ether*

You can list multiple IP's seperated by a comma, as well as multiple InterfaceAliases such as *ether*,*local*

SOURCE

https://blogs.technet.microsoft.com/heyscriptingguy/2014/08/30/powertip-use-powershell-to-set-primary-and-secondary-dns-server-addresses/



 

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Thursday, September 17, 2020

In PowerShell, what is the built-in alias for the ForEach-Object command ?

In PowerShell, what is the built-in alias for the ForEach-Object command ?

  • %
  • fe
  • ?

In PowerShell, what is the built-in alias for the ForEach-Object command ?

EXPLANATION

In order to cut down on the amount of code you have to write, you get handy alias such as:

% - ForEach-Object
? - Where-Object

It just makes coding that much easier but can reduce the understandability of the code. 

SOURCE

 

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