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Alle Oberthemen / Informatics / Linux

LPIC 101.1 (75 Karten)

Sag Danke

2
Kartenlink

What does modprobe do?

It intelligently adds or removes modules.

Tags: 101.1, commands, linux, modprobe
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3
Kartenlink

Where are module failures sometimes logged in?

The kernel log (dmesg)

Tags: 101.1, commands, dmesg, linux, logs
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15
Kartenlink

What commands can you run to display information on devices on the system's PCI bus? What command would you run if you were not a root user?

lspci - for root users
/sbin/lspci - for non-root users
cat /proc/pci

Tags: commands, lspci, pci, proc
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20
Kartenlink

Will the Operating System clock and the BIOS clock differ? If so, how can you re-synchronize them?

Yes, by the nature of the software they eventually drift. The command hwclock can be used to re-synchronize the system clock and the operating system clock.

Tags: 101.1, BIOS, clock, commands, hwclock, linux, synchronize, time
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42
Kartenlink

What command should you run before unplugging any external device? What can happen if you don't?

The umount command. Loss of data or corruption of the file system can occur if you simply unplug it.

Tags: commands, devices, linux, umount
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52
Kartenlink

To view partition information about a device, or to otherwise gain information about partitions and devices on the machine, what command can you use? Present an example.

The fdisk command.

Example:
fdisk -l /dev/hdb - This command will show the partition table for the device /dev/hdb.

fdisk -l - this will simply list the partition tables for all devices on the system.

Tags: 101.1, commands, fdisk, linux, partitions
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64
Kartenlink

List what the following common rpm command options do:

-i
-q
-U
-F or freshen
-V verify
-e

-i: Installs a package; system must not contain a package of the same name
-q: Queries a package—finds if a package is installed, what files it
-U: Installs a new package or upgrades an existing one
-F or freshen: Upgrades a package only if an earlier version already exists
-V verify: Verifies a package—checks that its files are present and unchanged since installation.
-e: Uninstalls a package.

Tags: 101.1, commands, linux, options, RPM
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