Cisco IOS Overview and Command Modes
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Questions and Answers

Which command would you use to save the current configuration to non-volatile RAM?

  • save running-config startup-config
  • copy startup-config running-config
  • backup running-config to NVRAM
  • copy running-config startup-config (correct)

What is the prompt indicating that the device is in Global Configuration Mode?

  • Switch#
  • Switch>
  • Switch#(config)
  • Switch(config)# (correct)

Which method should be avoided for remote access due to security concerns?

  • SSH
  • VPN
  • Console Port
  • Telnet (correct)

What command is used to transition from Privileged EXEC Mode to Global Configuration Mode?

<p>configure terminal (A)</p> Signup and view all the answers

Which command will remove the saved configuration from the device?

<p>erase startup-config (D)</p> Signup and view all the answers

Cisco IOS provides a graphical user interface for device management.

<p>False (B)</p> Signup and view all the answers

Telnet is considered a more secure method of remote access compared to SSH.

<p>False (B)</p> Signup and view all the answers

In Privileged EXEC Mode, the prompt displays as Switch>.

<p>False (B)</p> Signup and view all the answers

Entering 'end' or pressing Ctrl-Z will bring a user back to User EXEC Mode.

<p>False (B)</p> Signup and view all the answers

To store the current configuration into NVRAM, the command 'copy startup-config running-config' should be used.

<p>False (B)</p> Signup and view all the answers

Flashcards

Cisco IOS

The operating system for network devices like routers and switches.

User EXEC Mode

Basic commands (view-only).

enable command

Enters privileged EXEC mode.

Global Configuration Mode

Device-wide settings

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copy running-config startup-config

Saves configuration changes to NVRAM.

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How does Cisco IOS provide access?

Cisco IOS offers several methods for interacting with network devices:

  • Console Port: Direct physical connection for immediate access.
  • Secure Shell (SSH): Secure and encrypted remote access for managing devices.
  • Telnet: Remote access (insecure, generally discouraged).
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What is the role of Privileged EXEC Mode?

Privileged EXEC Mode allows you to perform advanced tasks on the network device, including configuration and management. It grants broader access and control than User EXEC Mode.

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What is the purpose of Interface Mode?

Interface Mode allows you to configure specific ports on the network device, like changing settings or enabling features for individual ports.

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What is NVRAM?

NVRAM stands for Non-Volatile Random Access Memory. It's a special type of memory that stores the saved configuration of a network device, even when the device is powered off.

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How do you safeguard privileged EXEC access?

You can secure privileged EXEC access using the enable secret command, which sets a password for entering this mode. This helps prevent unauthorized users from accessing and modifying sensitive device configuration.

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Study Notes

Cisco IOS Overview

  • Cisco IOS is the operating system for network devices like routers and switches.
  • It provides a Command-Line Interface (CLI) for managing devices.

Cisco IOS Command Modes

  • User EXEC Mode: Simple commands, read-only access (prompt: Switch>).
  • Privileged EXEC Mode: Advanced commands for configuration and management (prompt: Switch#).
  • Global Configuration Mode: Device-wide settings (prompt: Switch(config)#).
  • Interface Mode: Configures specific ports (entered from global config mode).
  • Line Mode: Configures console, Telnet, and SSH access (entered from global config mode).

Important Commands

  • enable: Enters privileged EXEC mode.
  • configure terminal: Enters global configuration mode.
  • exit: Moves to the previous mode.
  • end or Ctrl-Z: Exits to Privileged EXEC mode.
  • copy running-config startup-config: Saves current configuration to non-volatile RAM (NVRAM).
  • erase startup-config: Deletes the saved configuration in NVRAM.

Security Configuration

  • Passwords: Secure access to privileged EXEC mode using enable secret [password].
  • Console Access: (Note: Specific commands for securing console access are not listed in the text.)

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Description

This quiz covers the basics of Cisco IOS, the operating system used in routers and switches. You'll learn about various command modes such as User EXEC, Privileged EXEC, and Global Configuration, along with important commands. Test your understanding of how to navigate and manage Cisco devices effectively.

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