In Linux, what is the result of this command: tar -xvf public_html.tar

In Linux, what is the result of this command: tar -xvf public_html.tar

• Untar or extract public_html.tar to /root
• Untar or extract public_html.tar to /home/public_html
• Untar or extract public_html.tar to the current directory
• Create a new public_html.tar archive using the files in the current directory        

EXPLANATION

To untar or extract a tar file, just issue following command using option x (extract). For example the below command will untar the file public_html.tar in present working directory:

# tar -xvf public_html.tar

SOURCE

https://www.tecmint.com/18-tar-command-examples-in-linux/

       

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For an IBM i user profile, what authority could be considered "keys to the kingdom"?

 For an IBM i user profile, what authority could be considered "keys to the kingdom"?

• *IOSYSCFG
• *SECOFR
• *ALLOBJ
• *ALLAUT            

EXPLANATION

*ALLOBJ authority on a user profile grants a user access to everything on the system. Although the profile may not have the ability to directly do system functions like hardware configuration or system saves, *ALLOBJ grants the profile access to objects that do have those privileges. *ALLOBJ authority is often granted to all profiles on a system to make up for poor security planning and is a dangerous practice.

SOURCE

https://www.itjungle.com/2017/04/24/state-ibm-security-seven-areas-demand-attention/

   

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How many Kilobytes in 1 Gigabit?

 How many Kilobytes in 1 Gigabit?

• 125000
• 1000000
• 100000
• 122070     

          

EXPLANATION

Bits and Bytes are different by a factor of 8.  A lot of times people mistaken these, which can lead to disastrous consequences when talking about IT contracts.  Make sure you dot your i's, cross your t's, and check your bits & bytes!!

SOURCE

https://bit-calculator.com/

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What do Java and JavaScript have in common?

 What do Java and JavaScript have in common?

• None of these
• Both are compiled to bytecode
• Both use prototypes
• Both use JAR files               

EXPLANATION

Java and JavaScript share very little in common, despite both using C-style syntax and misleading name similarity

SOURCE

https://en.wikipedia.org/wiki/Java_(programming_language)

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In Unix/Linux, there is FSCK. What is its equivalent in Windows?

 In Unix/Linux, there is FSCK. What is its equivalent in Windows?

• TRACERT
• CHKDSK
• FDISK
• FSUTIL               

EXPLANATION

The system utility fsck (file system consistency check) is a tool for checking the consistency of a file system in Unix and Unix-like operating systems, such as Linux, macOS, and FreeBSD. A similar command, CHKDSK exists in Microsoft Windows.

SOURCE

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

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