Chapter 6 Flashcards
An interface that enables the user to interact with the operating system by entering commands and optional arguments.
Command-line interface (CLI)
The standard terminal-emulation application layer protocol in the TCP/IP protocol stack. This is 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. It is 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 IOS 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 router.
Enable mode
A mode of the user interface to a router or switch in which the can type 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 type configuration commands that are then added to the device’s currently used configuration file (running-config).
Configuration mode
In Cisco IOS switches and routers, the name of the file that resides in NVRAM memory, 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 file
In Cisco IOS switches and routers, the name of the file that resides in RAM memory, holding the device’s currently used configuration.
Running-config file
What does Cisco call the operating system that is used to implement and control the logic and functions performed by a Cisco switch.
Internetwork Operating System (IOS)
What is privileged EXEC mode (privileged mode) also referred to as?
enable mode
What command tells the switch to reinitialize or reboot Cisco IOS, only from enable mode.
reload
If the command prompt lists the hostname followed by a _____, the user is in user mode; if it is the hostname followed by the _____, the user is in enable mode.
>; #
The _____ command lists status information at one instant of time—more like a photograph—the _____ command acts more like a live video camera feed
show;
debug
What CLI command is used in privileged EXEC mode (enable mode) to enter into configuration mode?
configure terminal
What CLI command is used in configuration mode to go back to privileged EXEC (enable mode)?
exit