When a user computer or device (like a cell phone, tablet, or printer) is having general, odd software problems, what is the most common easy fix?

When a user computer or device (like a cell phone, tablet, or printer) is having general, odd software problems, what is the most common easy fix?

• Turn it off and on again
• Update the drivers
• Attach a debugger to the port
• Replace the flash memory 

 

EXPLANATION

Computerized devices have become extremely complex in software and hardware interactions.
The highly interwoven tangle of software dependencies will frequently cause small memory leaks, resource contentions, and other unexpected results, cascading over time. Just like a deep cleaning in the kitchen is great for a chef to maintain food quality, a reboot is oftentimes the quickest and easiest way to get a misbehaving system to clear its slate and get back into an operating state.
Sadly, since the concept is so simple and seems inane, many users will not do it when instructed. Performing this quick and basic step first thing will often correct the original issue and if it doesn't (and the user complains they did it already), it still provides the benefit of starting troubleshooting with the knowledge that you're starting from a basic system state.

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Who is credited with developing the Virtual Integrated Network Service?

Who is credited with developing the Virtual Integrated Network Service?

• ePresence
• Unisys
• IBM
• Banyan Systems 

 

EXPLANATION

In 1984, Banyan Systems introduced a set of network protocols and a computer network operating system known as Banyan VINES (Virtual Integrated Network Service). It was most commonly used by government entities, but later became obsolete as newer technologies from Microsoft and IBM began to overshadow its existing systems.

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Which of these is NOT a real Linux package manager?

Which of these is NOT a real Linux package manager?

• Tuxbrew
• PETget
• Pacman
• Conary 

 

EXPLANATION

Linux package managers are a dime a dozen and have lots of crazy names, like Pacman, PETget, and Conary.

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Which of the Following is NOT a Sync Type when Syncing Files and Folders using SyncToy, FreeFileSync and other File Syncing Tools?

Which of the Following is NOT a Sync Type when Syncing Files and Folders using SyncToy, FreeFileSync and other File Syncing Tools?

• Mirror
•  Dedupe
• Sync (Two-Way Sync)
• Contribute (Update) 

 EXPLANATION

Dedupe is a Storage Technology which operates on a block level to save storage space using pointers to data blocks. It is not a file level operation.
Contribute / Update -> Updates Files from the Left Folder Path to the Right without deleting any files or folders. Renamed, Modified and New Files and Folders are added from Left to Right.
Sync (Two-Way Sync) - New items, Renames, Modifications and Deletions are synced from Left to Right and Right to Left Paths (both directions).
Mirror - Copies and Overwrites all file and folder items from the Left Path to The Right Path - creates a mirror copy from Left to Right File Paths. Useful for Backups to removable storage such as USB External Hard Drives.

SOURCE

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

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What do registers provide for the CPU?

What do registers provide for the CPU?

• Enable the CPU to control the address bus
• Determine the clock speed
• Enable the CPU to address RAM
• Provide temporary storage of internal commands 

 

EXPLANATION

A processor register is a quickly accessible location available to a digital processor's central processing unit (CPU). Registers usually consist of a small amount of fast storage, which the CPU uses to temporarily store internal commands and data.
 

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Which codec requires a license to use?

Which codec requires a license to use?

• H.323
• G.722
• G.711
• G.729 

 

EXPLANATION

G.729 is a paid and licensed codec

SOURCE

https://nexbridge.co.uk/what-is-the-difference-between-g711-g729-and-gsm-and-why-does-the-codec-matter/

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Which of the following is not an automatic variable in PowerShell?

Which of the following is not an automatic variable in PowerShell?

• $Matches
• $Last
• $args
• $Error 

EXPLANATION

While there are automatic variables for the last cmdlet executed, the last argument used in that cmdlet, and the exit status (False if it threw an error; True if it didn't), there is no automatic variable that represents the last full command, or the last command's output.  $Last is not an automatic variable in the shell.
$Error is an array that's populated by all errors output in the current session (by default, up to 256 errors, although this can be changed by changing the value in $MaximumErrorCount).
$args is an array containing any command line arguments that were passed to a function or script; it's only usable from within that function or script.  Typically, this is not used as "param()" is a lot more powerful and typically easier to work with.
$Matches is an array containing the results of the last match with regular expressions against a string.  Note that it does not get populated if the match was performed against an array; in that case, -match just outputs the matching items directly to output.

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