Module 2: Basic Switch and End Device Configuration

Flashcards covering key vocabulary and concepts from the module.

Shell

The user interface that allows users to request specific tasks from the computer, either through the CLI or GUI.

Kernel

Communicates between the hardware and software, managing hardware resources to meet software requirements.

Hardware

Physical part of a computer, including underlying electronics.

GUI (Graphical User Interface)

Allows the user to interact with the system using graphical icons, menus, and windows; more user-friendly but may be less reliable.

Console

A physical management port used for initial device configurations.

Secure Shell (SSH)

Establishes a secure remote CLI connection to a device over a network.

Telnet

Establishes an insecure remote CLI connection to a device over the network; sends passwords and commands in plaintext.

Terminal Emulation Programs

Programs used to connect to a network device by either a console port or by an SSH/Telnet connection.

User EXEC Mode

Command mode that allows access to a limited number of basic monitoring commands; prompt ends with > symbol.

Privileged EXEC Mode

Command mode that allows access to all commands and features; prompt ends with # symbol.

Global Configuration Mode

Used to access configuration options on the device.

Line Configuration Mode

Used to configure console, SSH, Telnet, or AUX access.

Interface Configuration Mode

Used to configure a switch port or router interface.

Keyword

A specific parameter defined in the operating system.

Argument

A value or variable defined by the user.

startup-config

The saved configuration file that is stored in NVRAM and used upon startup.

running-config

The current configuration stored in RAM; changes affect the device immediately but are lost on reboot.

IP Addresses

The primary means of enabling devices to locate one another and establish end-to-end communication on the internet.

IPv4 Subnet Mask

A 32-bit value that differentiates the network portion of the IPv4 address from the host portion.

Default Gateway Address

The IP address of the router that the host will use to access remote networks, including the internet.

DHCP (Dynamic Host Configuration Protocol)

Enables automatic IPv4 address configuration for every end device that is DHCP-enabled.

Switch Virtual Interface (SVI)

Configured on a switch to enable remote management, it requires an IP address and subnet mask.