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Tuesday, February 4, 2020

What is the output file extension once you have captured a machine using sysprep?

What is the output file extension once you have captured a machine using sysprep?

  • .PKG
  • .MSI
  • .ESD
  • .WIM


 What is the output file extension once you have captured a machine using sysprep?

EXPLANATION

A captured image file is a .WIM.
The .WIM holds a complete copy of your reference computer. The .WIM can be used to deploy a Windows image across a network using WDS.

SOURCE

https://en.wikipedia.org/wiki/Windows_Imaging_Format
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Friday, January 31, 2020

In Microsoft Dynamics AX - what does a BOM stand for?

In Microsoft Dynamics AX - what does a BOM stand for?

  • Bob Of Murrays
  • Bill Of Materials
  • Bill Of Manufacturing
  • Building Off Memory 
In Microsoft Dynamics AX - what does a BOM stand for?

QUESTION BY

EXPLANATION

The correct answer is Bill Of Materials.
This clarifies what components are needed in order to make an item beginning to end when manufacturing a product end-to-end.


SOURCE

https://docs.microsoft.com/en-us/dynamics365/supply-chain/production-control/bill-of-material-bom







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Thursday, January 30, 2020

On Linux, what is the output of: find . -print -mtime -10

On Linux, what is the output of: find . -print -mtime -10

  • Only those files in & below the current directory with modification times greater than 10 days.
  • Only those files in & below the current directory with modification times from exactly 10 days ago.
  • Only those files in & below the current directory with modification times less than 10 minutes.
  • All files found in & below the current directory. 
On Linux, what is the output of: find . -print -mtime -10

EXPLANATION

Expressions in "find" are evaluated left to right.  In the command given, "-print" is the first action in the expression, so each file found is printed.  Each file is evaluated against "-mtime -10", but no corresponding action follows the -mtime test.  Adding "-ls" to the end of the expression will make it clear, because those files with modification dates of less than 10 days will then be listed again, but in a different format.
Find and print everything below the current directory:
$ find  .  -print
.
./May
./May/file03
./May/file01
./May/file02
./May/file04
./June
./June/file03
./June/file01
./June/file02
./June/file04
./July
./July/file03
./July/file01
./July/file02
./July/file04
Test the "find" command, as given in the challenge:
$ find  .  -print  -mtime -10
.
./May
./May/file03
./May/file01
./May/file02
./May/file04
./June
./June/file03
./June/file01
./June/file02
./June/file04
./July
./July/file03
./July/file01
./July/file02
./July/file04
Append another action for the "find" command, "-ls", which will list  those files again that have modification times of less than 10 days:
$ find  .  -print  -mtime -10 -ls
.
2370731    4 drwxr-xr-x   5 dan      users        4096 Jul 14 21:11 .
./May
2506551    4 drwxr-xr-x   2 dan      users        4096 Jul 14 21:17 ./May
./May/file03
./May/file01
./May/file02
./May/file04
./June
2506552    4 drwxr-xr-x   2 dan      users        4096 Jul 14 21:18 ./June
./June/file03
./June/file01
./June/file02
./June/file04
./July
2506554    4 drwxr-xr-x   2 dan      users        4096 Jul 14 21:18 ./July
./July/file03
./July/file01
./July/file02
./July/file04
Understanding that the order of evaluation moves left to right is critical. If the specified action had been "-delete", instead of "-print", every file from the current directory down would have been deleted.
http://man7.org/linux/man-pages/man1/find.1.html
Warnings: Don't forget that the find command line is evaluated as an expression, so putting -delete first will make find try to delete everything below the starting points you specified.
See also:
http://pubs.opengroup.org/onlinepubs/9699919799/utilities/find.html
https://www.gnu.org/software/findutils/manual/html_node/find_html/find-Expressions.html#find-Expressions



SOURCE

http://man7.org/linux/man-pages/man1/find.1.html
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Wednesday, January 29, 2020

On a Linux system, what is the output of " ls -si /tmp "

On a Linux system, what is the output of " ls -si /tmp "

  • Human-readable sizes of names in /tmp using powers of 1000
  • Index (inode) number of each name in /tmp, the allocated size in blocks of each name, and the name
  • Human-readable size of names in /tmp using powers of 1024
  • Names in /tmp sorted by inode number 

On a Linux system, what is the output of " ls -si /tmp "

EXPLANATION

Most Linux utilities, including "ls", can be used with short options (prefixed with a single hyphen), or long options, (prefixed with two hyphens).  Some Linux utilities, like "tar" and "ps", do not require a prefix for short options.  Multiple short options may be combined following a single hyphen.
So the short option for size,  " -s ", may be combined with the short option for inode,  " -i ", as in 
ls -si  /tmp
Short options can be given in any order, but the order of the options does not affect the order of the output.
Long options (more than one character), are prefixed with two hyphens, as in
ls  --si  /tmp
The long option above, " --si ", is not the same as the combined short options, " -si ", and the long option, "--si",   will list the allocated block sizes of the names in /tmp in human-readable form using powers of 1000 (as opposed to 1024).

SOURCE

http://www.man7.org/linux/man-pages/man1/ls.1.html
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Tuesday, January 28, 2020

You are connecting an external modem to a legacy (non-plug and play) PC which has 4 existing com ports. A serial mouse is already using com1. Which of the following ports could you use?

You are connecting an external modem to a legacy (non-plug and play) PC which has 4 existing com ports. A serial mouse is already using com1. Which of the following ports could you use?

  • 2 or 4
  • 3 or 4
  • 1 or 3
  • 2 or 3 

You are connecting an external modem to a legacy (non-plug and play) PC which has 4 existing com ports. A serial mouse is already using com1. Which of the following ports could you use?

EXPLANATION

Com ports 1 and 3 share the same IRQ (4), whereas Com ports 2 and 4 share IRQ 3. Under normal circumstances,
serial devices can share the IRQ, however, in the case of a mouse, it would have required a driver which would constantly be active, not giving another serial device the opportunity to use the IRQ. So any answer with COM3 would be invalid.

SOURCE

https://en.wikibooks.org/wiki/A%2B_Certification/Exam_Objectives/Hardware/Basics/CPU/IRQ
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