1- What is “cli”? 2- What is a console rollover cable (also known as “Yost Cable

Question

1- What is “cli”?

2- What is a console rollover cable (also known as “Yost Cable”)?

3- CISCO (among many others) equipment can be controlled locally via the console port and remotely via an HTTP interface. What are the pros/cons to both approaches?

4- Specifically, what id the CISCO “IOS”?

5- In our lab setting we instruct you to never add and then leave a password on your networking gear most notably so we can be assured of equipment availability for a subsequent lab. Why would this practice not be used in a production environment?

Explanation / Answer

Answer 1:-

CLI is also Known as Command Line Interface.It is a text-based interface which is used to operate the software and operating systems while allowing the user to respond to prompts by typing commands in interface and receiving a reply in the same way.CLI is an older method for interacting with applications and operating systems and is used to perform specific tasks required by users.It is a text based interface where it allows a user to perform tasks by entering commands.Users enter the specific command, press “Enter”, and then wait for a response. After receiving the command, the CLI processes it accordingly and shows the output/result on the same screen; command line interpreter is used for this purpose.
The best example of CLI is MS-Dos

Answer 2 :-

Roll-over cable also known as Yost cable or Cisco-console-cable.It is used to connect a computer terminal to a router's console port. It gets the name rollover because the pinouts on one end are reversed from the other, as if the wire had been rolled over and you were viewing it from the other side. A rollover cable is not used for a network connection.This cable is flat.

Answer 4 :-

Cisco IOS is software used on most Cisco Systems routers and current Cisco network switches.It is a package of routing, switching, internetworking and telecommunications functions integrated into a multitasking operating system.
Cisco IOS is versioned using three numbers and some letters. they are
*a is the major version number.
*b is the minor version number.
*c is the release number
*d is the build number.
*e is the software release identifier

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