Module 2 (NetAcad) Flashcards
All end devices and network devices require an ____
operating system (OS)
The portion that interfaces with applications and the user is known as the ____
shell
the portion of the OS that interacts directly with computer hardware is known as the ____
kernel
The user can interact with the shell using a _____
command-line interface (CLI) or a graphical user interface (GUI).
The user interface that allows users to request specific tasks from the computer. These requests can be made either through the CLI or GUI interfaces.
Shell
Communicates between the hardware and software of a computer and manages how hardware resources are used to meet software requirements.
Kernel
The physical part of a computer including underlying electronics
Hardware
When using a ____ the user interacts directly with the system in a text-based environment by entering commands on the keyboard at a command prompt,
CLI
The ____ requires very little overhead to operate. However, it does require that the user have knowledge of the underlying command structure that controls the system.
CLI
A ____ such as Windows, macOS, Linux KDE, Apple iOS, or Android allows the user to interact with the system using an environment of graphical icons, menus, and windows.
GUI
GUIs may not always be able to provide all the features available with the ___
CLI
The ___ is less resource intensive and very stable when compared to a GUI.
CLI
The family of network operating systems used on many Cisco devices is called the _____
Cisco Internetwork Operating System (IOS)
Give other Cisco operating systems
- IOS XE
- IOS XR
- NX-OS
The operating system on home routers is usually called ____. The most common method for configuring a home router is by using a web browser-based GUI.
firmware
____ are similar to a PC operating system. Through a GUI, a PC operating system enables a user to do the following:
- Use a mouse to make selections and run programs
- Enter text and text-based commands
- View output on a monitor
Network operating systems
A ____ (e.g., the Cisco IOS on a switch or router) enables a network technician to do the following:
- Use a keyboard to run CLI-based network programs
- Use a keyboard to enter text and text-based commands
- View output on a monitor
CLI-based network operating system
(T or F) Is the IOS version is dependent on the type of device being used and the required features?
True
A ____ will forward traffic by default and does not need to be explicitly configured to operate.
For example, two configured hosts connected to the same new switch would be able to communicate.
switch
This is a physical management port that provides out-of-band access to a Cisco device.
Console
_____ access refers to access via a dedicated management channel that is used for device maintenancen purposes only.
Out-of-band
What is the advantage of using a console port
Device is accessible even if no networking services are configured, such as performing the initial configuration
What are the required software and console for a console connection
- Computer running terminal emulation software
- Special console cable
___ is an in-band and recommended method for remotely establishing a secure CLI connection, through a virtual interface, over a network.
SSH (Secure Shell)
(T or F) Does SSH connection require active networking services on the device, including an active interface configured with an address?
True
____ is an insecure, in-band method of remotely establishing a CLI session, through a virtual interface, over a network.
Telnet
Some devices, such as routers, may also support a____ that was used to establish a CLI session remotely over a telephone connection using a modem.
legacy auxiliary port
What are some terminal emulation programs that you can use to connect to a networking device either by a sericla connection over a console port
- PuTTY
- Tera Term
- SecureCRT
Using the ___- may provide the network administrator with more precise control and flexibility than using the GUI.
CLI
As a security feature, the Cisco IOS software separates management access into the following two command modes:
- User EXEC Mode
- Privileged EXEC Mode
This mode has limited capabilities but is useful for basic operations. It allows only a limited number of basic monitoring commands but does not allow the execution of any commands that might change the configuration of the device.
User EXEC Mode
To execute configuration commands, a network administrator must access privileged EXEC mode. Higher configuration modes, like global configuration mode, can only be reached from ___
privileged EXEC mode.
- Mode allows access to only a limited number of basic monitoring commands
- It is often reffered to as “view-only” mode
User EXEC Mode
- Mode allows access to all commands and features
- The user can use any monitoring commands and execute configureation and management commands
Privileged EXEC Mode
What is this mode?
Switch>
Router>
User EXEC Mode
What is this mode?
Switch#
Router#
Privileged EXEC Mode
To configure the device, the user must enter global configuration mode, which is commonly called ____
global config mode.
____is identified by a prompt that ends with (config)# after the device name, such as Switch(config)#.
Global configuration mode
____is accessed before other specific configuration modes.
Global configuration mode
T or F | From global config mode, can the user enter in different sub configuration modes?
True
Userd to configure console, SSH, Telnet, or AUX access
Line Configuration Mode
Used to configure a switch port or router network interface
Interface Configuration Mode
T or F | By default does every prompt begins with the device name?
True
To move from user EXEC mode to privileged EXEC mode, use the ____ command.
enable
Use the ____ privileged EXEC mode command to return to user EXEC mode.
disable
Privileged EXEC mode is sometimes called ___-
enable mode.
To move in and out of global configuration mode, use the ____ privileged EXEC mode command.
configure terminal
To return to the privileged EXEC mode, enter the ___ global config mode command.
exit
To move from any subconfiguration mode of the global configuration mode to the mode one step above it in the hierarchy of modes, enter the ___ command.
exit
To move from any subconfiguration mode to the privileged EXEC mode, enter the end command or enter the key combination ____
Ctrl+Z.
Which IOS mode allows access to all commands and features?
Privileged EXEC Mode
Which IOS mode are you in if the Switch(config)# prompt is displayed?
Global configuration mode
Which Ios mode are you in if the Switch> prompt is displayed
User EXEC Mode
A ____ must know the basic IOS command structure to be able to use the CLI for device configuration.
network administrator
T or F | Does each IOS command has a specific format, or syntax, and can only be executed in the appropriate mode?
True
This is a specific parameter defined in the operating system (in the figure, ip protocols).
Keyword
This is not predefined; it is a value or variable defined by the user (in the figure, 192.168.10.5).
Argument
After entering each complete command, including any keywords and arguments, press the ___ key to submit the command to the command interpreter.
Enter
T or F | Does a command might require one or more arguments?
True
To determine the keywords and arguments required for a command, refer to the ___
command syntax.
Indicates command and keywords that you enter literally as shown
boldface
Indicates arguments for which you supply values
italics
Indicate and optional element (keyword or argument)
Square brackets
Indicate a required element (keyword or argument)
Braces
indicate a required choice within an optional element. Spaces are used to clearly delineate parts of the command
Braces and vertical lines within square brackets
the syntax for using the description command is ___
description string.
The argument is a ___ value provided by the user.
string
The ___ command is typically used to identify the purpose of an interface.
description
The command is ___ and the user-defined argument is the____ of the destination device. For example, ping 10.10.10.5.
ping, ip-address
The command is ___ and the user-defined argument is the ip-address of the destination device. For example, traceroute 192.168.254.254
traceroute
The IOS has two forms of help available:
context-sensitive help and command syntax check.
