Basic Switch and End Device Configuration

Flashcards covering basic switch and end device initial configurations, IOS navigation, command structure, password security, configuration saving, and IP addressing concepts based on Cisco ITN v7.0 Module 2.

In an operating system, what are the primary roles of the shell, kernel, and hardware?

The shell is the user interface (CLI or GUI) for requesting tasks; the kernel communicates between hardware and software and manages hardware resources; the hardware includes the physical underlying electronics.

What are the three primary methods used to access a Cisco IOS device for configuration?

Console (a physical management port for maintenance/initial setup), Secure Shell (SSH, a secure remote CLI connection), and Telnet (an insecure remote CLI connection using plaintext).

How do User EXEC mode and Privileged EXEC mode differ in Cisco IOS?

User EXEC mode allows only a limited number of basic monitoring commands and prompt ends with '>'; Privileged EXEC mode allows access to all commands and features and prompt ends with '#'.

Which Cisco IOS command mode is used to configure console, SSH, Telnet, or AUX access?

Line Configuration Mode

What command is used to move from User EXEC mode to Privileged EXEC mode?

The 'enable' command.

What command enters Global Configuration mode from Privileged EXEC mode?

The 'configure terminal' command.

How can a user exit any subconfiguration mode and return directly to Privileged EXEC mode?

By using the 'end' command or the 'Ctrl+Z' key combination.

In Cisco IOS command structure, what is the difference between a keyword and an argument?

A keyword is a specific predefined parameter in the operating system; an argument is not predefined and is a value or variable provided by the user.

In Cisco IOS command syntax conventions, what do boldface text, italic text, square brackets, and braces represent?

Boldface indicates commands/keywords entered literally; italics indicate arguments where user supplies values; square brackets [x] indicate optional elements; braces {x} indicate required elements.

What function does the 'Ctrl-Shift-6' key combination serve in Cisco IOS?

It acts as an all-purpose break sequence used to abort DNS lookups, traceroutes, pings, etc.

What are the key guidelines for naming a Cisco IOS device host?

Start with a letter, contain no spaces, end with a letter or digit, use only letters, digits, and dashes, and be less than 64 characters in length.

What Cisco IOS commands are required to secure access to the console port with a password?

Enter 'line console 0' in global config mode, execute 'password [password]', and then enter 'login'.

How many VTY lines do many Cisco switches support, and what sequence of commands secures them?

They support up to 16 VTY lines (0 to 15). Secure them using 'line vty 0 15', setting 'password [password]', and executing 'login'.

Which global configuration command is used to encrypt all plaintext passwords in the configuration file?

The 'service password-encryption' command.

How is a Message of the Day (MOTD) banner configured on a Cisco device?

By using the global configuration command 'banner motd # [message] #', where '#' serves as a delimiting character.

What are the two system configuration files in Cisco IOS, and where is each stored?

'startup-config' is stored in non-volatile NVRAM (retained across reboots); 'running-config' is stored in volatile RAM (lost when powered off).

Which command saves the active running configuration to NVRAM?

'copy running-config startup-config' executed in privileged EXEC mode.

What sequence of privileged EXEC commands is used to completely remove all saved configurations and reset the device back to startup state upon reboot?

Run 'erase startup-config' followed by 'reload'.

What is the structure and bit length of an IPv6 address?

An IPv6 address is 128 bits long, written as 32 hexadecimal values grouped in sets of four separated by colons (':').

What dynamic address allocation protocols can be used by IPv6 end devices besides DHCPv6?

SLAAC (Stateless Address Autoconfiguration).

Which commands configure a Switch Virtual Interface (SVI) on VLAN 1 with an IPv4 address and activate it?

Enter 'interface vlan 1' in global config mode, assign IP using 'ip address [ip-address] [subnet-mask]', and execute 'no shutdown'.