Operating Systems

Question 1

OS

Answer 1

All end devices and network devices require an operating system (OS).

Question 2

Shell

Answer 2

The user interface that allows users to request specific tasks from the computer.

Question 3

Kernel

Answer 3

Communicates between the hardware and software of a computer and manages how hardware resources are used to meet software requirements

Question 4

Hardware

Answer 4

The physical part of a computer including underlying electronics.

Question 5

GUI(Graphical user Interface)

Answer 5

A GUI such as Windows, macOS, Linux KDE, Apple iOS, or Android allows the user to interact with the system using an environment of graphical icons, menus, and windows.

Question 6

Purpose of an OS

Answer 6

Network operating systems are similar to a PC operating system. Through a GUI, a PC operating system enables a user to do the following:

Use a mouse to make selections and run programs

Question 7

Access Methods

Answer 7

Regardless of the default behavior of a new switch, all switches should be configured and secured.

Question 8

Console

Answer 8

This is a physical management port that provides out-of-band access to a Cisco device.

Question 9

Secure Shell(SSH)

Answer 9

SSH is an in-band and recommended method for remotely establishing a secure CLI connection, through a virtual interface, over a network

Question 10

Telnet

Answer 10

Telnet is an insecure, in-band method of remotely establishing a CLI session, through a virtual interface, over a network. Unlike SSH, Telnet does not provide a secure, encrypted connection and should only be used in a lab environment.

Question 11

Terminal Emulation Programs

Answer 11

There are several terminal emulation programs you can use to connect to a networking device either by a serial connection over a console port, or by an SSH/Telnet connection.