Ch6-Using the Command-Line Interface Flashcards
The standard terminal-emulation application layer protocol in the TCP/IP protocol stack. Used for remote terminal connection, enabling users to log in to remote systems and use resources as if they were connected to a local system. Defined in RFC 854.
Telnet
A TCP/IP application layer protocol that supports terminal emulation between a client and server, using dynamic key exchange and encryption to keep the communications private.
Secure Shell (SSH)
A part of the Cisco CLI in which the user can use the most powerful and potentially disruptive commands on a router or switch, including the ability to then reach configuration mode and reconfigure the device
enable mode
A mode of the user interface to a router or switch in which the user can enter only non-disruptive EXEC commands, generally just to look at the current status, but not to change any operational settings
user mode
A part of the Cisco IOS software CLI in which the user can enter configuration commands that are then added to the device’s current operational configuration
configuration mode
In Cisco IOS switches and routers, the name of the file that resides in NVRAM, holding the device’s configuration that will be loaded into RAM as the running-config file when the device is next reloaded or powered on
startup-config
In Cisco IOS switches and routers, the name of the file that resides in RAM, holding the device’s currently used configuration
running-config
Command reference:
What global command changes the context to console configuration mode?
line console 0
Command reference:
Which command, used in line (console and vty) configuration mode, tells IOS to prompt the user for a password (no username)?
login
Command reference:
Which command, used in line (console and vty) configuration mode, sets the password required on the line for login if the <b>login</b> command (with no other parameters) is also configured
password <i>pass-value</i>
Command reference:
Which command, used in global configuration mode, changes the context to interface mode?
interface <i>type port-number<i></i></i>
Command reference:
Which command, used in global configuration mode, sets the device’s hostname?
hostname <i>name</i>
Command reference:
Moves back one mode (the next higher mode) in configuration mode
exit
Command reference:
Exits configuration mode and goes back to enable mode from any of the configuration submodes
end
Command reference:
Enable mode EXEC command to disable all currently enabled debugs
Any of:
no debug all
undebug all