Show Privilege command is used to see the level.
Implementing privilege levels varies depending on the organization's structure and the different job functions that require access to the infrastructure devices.
In the case of the USER, which requires default level 1 (Router>) access, no custom privilege level is defined. This is because the default user mode is equivalent to level 1.
The SUPPORT account could be assigned a higher level access such as level 5. Level 5 automatically inherits the commands from levels 1 through 4, plus additional commands can be assigned. Keep in mind that when a command is assigned at a specific level, access to that command is taken away from any lower level. For example, to assign level 5 the ping command, use the following command sequence.
privilege exec level 5 ping
The USER account (level 1) no longer has access to the ping command, because a user must have access to level 5 or higher to perform the ping function.
To assign a password to level 5, enter the following command.
enable secret level 5 cisco5
To access level 5, the password cisco5 must be used.
To assign a specific username to privilege level 5, enter the following command.
username support privilege 5 secret cisco5
A user that logs in under the username support is only able to access privilege level 5, which also inherits privilege level 1.
https://learningnetwork.cisco.com/docs/DOC-15878
