Linux and SQL Flashcards

1
Q

Hardware

A

The Physical components of a computer

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2
Q

Application

A

a program that operates a specific task

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3
Q

Basic Input/Output System (BIOS)

A

is a microchip that contains loading instructions for the computer and is prevalent in older systems.

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4
Q

When you boot, or turn on, your computer, either a ____ & ______ microchip is activated.

A

BIOS or UEFI

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5
Q

Unified Extensible Firmware Interface (UEFI)

A

is a microchip that contains loading instructions for the computer and replaces BIOS on more modern systems.

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6
Q

The last instruction from the BIOS or UEFI activates the _____

A

bootloader

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7
Q

Bootloader

A

is a software program that boots the operating system.

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8
Q

Virtual machine (VM)

A

is a virtual version of a physical computer.

Virtualization is the process of using software to create virtual representations of various physical machines.

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9
Q

Random Access Memory (RAM)

A

is a hardware component used for short-term memory. If a computer has 16GB of RAM, it can host three virtual machines so that the physical computer and virtual machines each have 4GB of RAM.

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10
Q

User Interface

A

A program that allows the user to control the functions of the operating system

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11
Q

Graphical User Interface aka GUI

A

A user interface that uses icons on the screen to manage different task on the computer

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12
Q

Basic GUI components

A
  1. Start menu
  2. Tool bar
  3. Desktop with icons and shortcuts
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13
Q

Command- line interface (CLI)

A

A text based user interface that uses commands to interact with the computer

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14
Q
A
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15
Q

The components of Linux

A
  1. User
  2. Application
  3. Shell
  4. File system hierarchy standard
  5. Kernel
  6. Hardware
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16
Q

User

A

The person interacting with the computer.

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17
Q

Application also known as Programs

A

A program that performs a specific task.

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18
Q

Shell

A

The command line interpreter

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19
Q

File system hierarchy standard

FHS

A

The component of Linux OS that organizes data

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20
Q

Kernel

A

The component of Linux OS that manages processes and memory

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21
Q

Hardware

A

The physical component of a computer

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22
Q

What are distributions ?

A

Different versions of Linux

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23
Q

What are other names for distribution ?

A

Distro’s or flavors of Linux

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24
Q

Digital Forensics

A

The practice of collecting and analyzing data to determine what has happened after an attack

25
package
a piece of software that can be combined with other packages to form an application.
26
package manager
is a tool that helps users install, manage, and remove packages or applications. Linux uses multiple package managers.
27
Command
Is an instruction telling the computer to do something inside of the shell.
28
Bash Shell
is the default shell in most Linux distributions. It’s considered a user-friendly shell. You can use bash for basic Linux commands as well as larger projects.
29
Standard Input
Information received by the OS via command line.
30
Echo
a linux command that outputs a specified string of text.
31
Standard Output
Information returned by the OS through a shell
32
Standard Error
Error messages returned by the OS through the shell.
33
Parrot
An open-source distribution that is commonly used for security
34
Penetration test (pen test)
A simulated attack that helps identify vulnerabilities in systems, networks, websites, applications, and processes
35
Peripheral devices
Hardware components that are attached and controlled by the computer system
36
Red Hat® Enterprise Linux
A subscription-based distribution of Linux built for enterprise use
37
String data
Data consisting of an ordered sequence of characters
38
Ubuntu
An open-source, user-friendly distribution that is widely used in security and other industries
39
Argument (linux)
specific information needed by a command
40
pwd
prints the working directory on the screen
41
ls
Displays the names of files and directories in the current wokring directory.
42
cd
navigates between directories
43
cat
displays the content of a file
44
head
Displays just the beginning of a file, by default 10 lines.
45
mkdir
creates a new directory
46
rmdir
removes, or deletes a directory
47
touch
creates a new file
48
rm
removes, or deletes, a file
49
mv
Moves a file or directory to a new location
50
cp
copies a file or directory into a new location
51
permissions
the type of access granted for a file directory
52
authorization
the concept of granting access to specific resources in a system.
53
what are the three types of permissions in linux?
1. Read 2. Write 3.Execute
54
options
modify the behavior of the command
55
ls - l
displays permissions to file and directories
56
ls - a
Display hidden files
57
ls - la
displays permission to files and directories including hidden files.
58
chmod
changes permissions on files and directories.
59
Types of Owners
1. Users = U 2. Group= G 3. Other= O