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ccna top institute in pune.1. User EXEC mode When you first enter the CLI, you are in user EXEC mode and have limited IOS commands to execute. Depending on the configuration of the Cisco device, you may need to enter a password to enter this mode.Depending on the configuration of the Cisco device, a password may need to be entered to enter this mode. This mode is typically used to perform basic network troubleshooting tasks. You can tell if you are in user EXEC mode by the prompt on the left side of the screen.ios>If the prompt ends with the character , you are currently in user EXEC mode. The character is preceded by the name of the Cisco device; for example, the default name for all Cisco routers is Router, and the user EXEC prompt for the 2960 switch looks like this: Switch>The device name can be changed using the command hostname, which will be discussed later in this chapter. In the previous example, I changed the device name to IOS.2. privileged EXEC mode After entering user EXEC mode. you can use the command enable to enter privileged EXEC mode.IOS> enable IOS#.If you configure a privileged EXEC password on the Cisco device, you will be asked for that password after you execute the command enable. After you pass authentication, you will enter privileged EXEC mode. You can determine whether you are in privileged EXEC mode by using the CLI prompt; in the previous example, notice that the > becomes #.In privileged EXEC mode, all user EXEC commands are available, as well as numerous advanced management and troubleshooting commands, including extended ping and trace, managing configuration files and IOS images, and detailed troubleshooting with the debug command. The only thing you cannot do in this mode is modify the configuration of the Cisco device, which can only be done in configuration mode.To return from privileged EXEC mode to user EXEC mode, use the command disableo