Podcast
Questions and Answers
What is the purpose of Cisco IOS?
What is the purpose of Cisco IOS?
Which command is used to enter privileged EXEC mode?
Which command is used to enter privileged EXEC mode?
Which method is considered insecure for remote access to a Cisco device?
Which method is considered insecure for remote access to a Cisco device?
Which command saves the current configuration to NVRAM?
Which command saves the current configuration to NVRAM?
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What is the prompt for Global Configuration Mode in Cisco IOS?
What is the prompt for Global Configuration Mode in Cisco IOS?
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Cisco IOS is used exclusively for desktop computers.
Cisco IOS is used exclusively for desktop computers.
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The prompt for privileged EXEC mode is Switch#.
The prompt for privileged EXEC mode is Switch#.
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Secure Shell (SSH) is a secure method for remote access to Cisco devices.
Secure Shell (SSH) is a secure method for remote access to Cisco devices.
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The command 'erase startup-config' is used to save the current configuration.
The command 'erase startup-config' is used to save the current configuration.
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User EXEC Mode allows for advanced configuration commands.
User EXEC Mode allows for advanced configuration commands.
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Flashcards
Cisco IOS purpose
Cisco IOS purpose
Cisco IOS is the operating system for network devices (routers, switches, etc).
User EXEC mode
User EXEC mode
Basic commands for viewing network devices.
Privileged EXEC mode
Privileged EXEC mode
Advanced commands for configuration and management.
Global configuration mode
Global configuration mode
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Save configuration (Cisco)
Save configuration (Cisco)
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Cisco IOS Access Methods
Cisco IOS Access Methods
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What is the command to enter privileged EXEC mode?
What is the command to enter privileged EXEC mode?
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Move between configuration modes
Move between configuration modes
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Save configuration to NVRAM
Save configuration to NVRAM
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Secure console access
Secure console access
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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 the devices.
Access Methods
- Console Port: Physical connection for direct access.
- Secure Shell (SSH): Encrypted remote access.
- Telnet: Remote access (avoid due to lack of security).
Cisco IOS Command Modes
- User EXEC Mode: Basic commands; read-only access. Prompt: Switch>
- Privileged EXEC Mode: Advanced configuration and management commands. Prompt: Switch#
- Global Configuration Mode: Device-wide settings. Prompt: Switch(config)#
- Interface Mode: Configures specific network ports.
- Line Mode: Configures console, Telnet, and SSH access.
Important Commands
- Mode Changes:
enable: Enters privileged EXEC mode.configure terminal: Enters global configuration mode.exit: Moves to the previous mode.endorCtrl-Z: Exits to privileged EXEC mode.
- Configuration Saving:
copy running-config startup-config: Saves running configuration to NVRAM.erase startup-config: Removes the saved configuration.
Security Configuration
- Passwords:
- Secure privileged EXEC access:
enable secret [password].
- Secure privileged EXEC access:
- Console Access Security: (More detail needed.)
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Description
Dive into the essentials of Cisco IOS, the operating system powering network devices such as routers and switches. Explore various access methods including Console Port, SSH, and Telnet. Learn about command modes and important commands to effectively manage your network devices.
