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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According to ITIL, which of the following should IT services provide to customers?

According to ITIL, which of the following should IT services provide to customers?

• Skills
• Risk
• Value
• Costs 

EXPLANATION

From the customer's point of view the value of a service consists of two basic elements:

Utility: The functionality offered by a product or service to meet a particular need. Utility can be summarized as ‘what the service does’, and can be used to determine whether a service is able to meet its required outcomes, or is ‘fit for purpose’. The business value of an IT service is created by the combination of utility and warranty.


Warrancy: Assurance that a product or service will meet agreed requirements. This may be a formal agreement such as a service level agreement or contract, or it may be a marketing message or brand image. Warranty refers to the ability of a service to be available when needed, to provide the required capacity, and to provide the required reliability in terms of continuity and security. Warranty can be summarized as ‘how the service is delivered’, and can be used to determine whether a service is ‘fit for use’. The business value of an IT service is created by the combination of utility and warranty.

SOURCE

https://www.axelos.com/Corporate/media/Files/Glossaries/ITIL_2011_Glossary_GB-v1-0.pdf

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Which of the following is a requirement of setting up SQL Server AlwaysOn High Availability?

Which of the following is a requirement of setting up SQL Server AlwaysOn High Availability?

• Windows Server Failover Clustering (WSFC)
• Network Load Balancing (NLB)
• Windows Internal Database
• Internet Information Services (IIS) 

EXPLANATION

AlwaysOn requires that failover clustering is installed on each node and that the nodes are joined to the cluster prior to enabling AlwaysOn High Availability on the SQL server. AlwaysOn has to be enabled through the SQL Server Configuration Manager prior to being configured in SQL Server Management Studio (SSMS).

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Which of the following is another term for a botnet?

Which of the following is another term for a botnet?

• Dead Spiceheads
• Research Honeypot
• Corpse Cluster
• Zombie Army 

 

EXPLANATION

The more popular term for a Zombie Army is a botnet. Botnet is a number of Internet computers (zombie computers) that have been compromised (unknown to owners) by hackers to forward transmissions to other computers that are connected to the internet.
http://searchsecurity.techtarget.com/definition/botnet
https://en.wikipedia.org/wiki/Zombie_(computer_science)
https://en.wikipedia.org/wiki/Botnet

 

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Which one of these is not Linux terminal based text editor?

Which one of these is not Linux terminal based text editor?

• Nano
• Vi
• AkelPad
• Pico 

 

EXPLANATION

Vi - is first linux editor, it is in every distribution and it is general command line editor.
Nano/Pico - are from same core text editors in Linux and they are second most used editor.
AkelPad is windows based text editor
References:https://en.wikipedia.org/wiki/AkelPad
http://www.linux.org/threads/text-editors.4104/

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