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CompTIA Linux+ Certificate. Study. 1



I have recently obtained CompTIA Linux+ certificate and this is what to study to pass!!

CompTIA Linux+ can be achieved through two difference exam path.

 We are only talking about LX0-103 & LX0-104.

Exam detail can be found in CompTIA homepage.

https://certification.comptia.org/certifications/linux#examdetails

There are sections you need to focus.

1. System Architecture
2. Linux INstallation and package management
3. GNU and Unix commands
4. Devices, linux Filesystems, filessystem hierachy Standard


Question 1
lspci

NAME
       lspci - list all PCI devices

SYNOPSIS
       lspci [options]

DESCRIPTION
       lspci is a utility for displaying information about PCI buses in the system and devices connected to them.

       By default, it shows a brief list of devices. Use the options described below to request either a more verbose output
or output intended for parsing by other programs.

       If you are going to report bugs in PCI device drivers or in lspci itself, please include output of "lspci -vvx" or eve
n better "lspci -vvxxx" (however, see below for possible caveats).

       Some  parts  of the output, especially in the highly verbose modes, are probably intelligible only to experienced PCI
hackers. For exact definitions of the fields, please consult either the PCI
       specifications or the header.h and /usr/include/linux/pci.h include files.

       Access to some parts of the PCI configuration space is restricted to root on many operating systems, so the features o
f lspci available to normal users are limited.  However,  lspci  tries  its
       best to display as much as available and mark all other information with <access denied> text.

--

 -b     Bus-centric view. Show all IRQ numbers and addresses as seen by the cards on the PCI bus instead of as seen by the kernel.

       -n     Show PCI vendor and device codes as numbers instead of looking them up in the PCI ID list.

       -nn    Show PCI vendor and device codes as both numbers and names.

--

What is lspci displaying? 

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