Week 3

Question 1

What does SSH stand for?

Answer 1

secure shell

Question 2

to use SSH, you need to have what?

Answer 2

SSH client & an SSH server

SSH client installed on the computer you’re connecting from & an SSH server on the computer you’re trying to connect to

Question 3

is an SSH server considered software or hardware?

Answer 3

software

Question 4

what is the most popular program to use SSH within Linux?

Answer 4

openSSH program

Question 5

what is a protocol implemented by other programs to securely access one computer from another?

Answer 5

Secure Shell, SSH

Question 6

what two things do we need to login to a remote machine ?

Answer 6

an account on that computer

the host name
or
IP address of that computer

Question 7

SSH keys come in a set of two keys called what?

Answer 7

private & public keys

Question 8

how do public and private keys work?

Answer 8

You can lock something with the public key, but you can only unlock it with a private key and vice versa.

Question 9

whats another way that you can connect securely to a remote machine besides SSH?

Answer 9

VPN

Question 10

What is PuTTY ?

Answer 10

a free, open source software, that you can use to make remote connections, through several network protocols including SSH

Question 11

Running PuTTY from the GUI isn’t your only option. You could also use it on what?

Answer 11

command line

Question 12

what is the whole package that manages our computers resources and let’s us interact with it?

Answer 12

Operating System

Question 13

what are the two main parts to an operating system?

Answer 13

Kernel Space & User Space

Question 14

what is the main core of an operating system?

Answer 14

Kernel Space

Question 15

what talks directly to our hardware & manages our systems resources?

Answer 15

the Kernel Space

Question 16

as users, we don’t interact with the kernel directly, instead we interact with what?

Answer 16

second part of an operating system, the user space

Question 17

what is basically made up of everything outside the kernel?

Answer 17

the User Space

these are things we work with directly like system programs & user interfaces

Question 18

There are hundreds of operating systems out there, but what are the major ones used in IT?

Answer 18

Windows, Mac, and Linux.

Question 19

what is the main core of an operating system?

Answer 19

the Kernel

Question 20

what talks directly to our hardware and manages our systems resources?

Answer 20

kernel

Question 21

As users, we don’t interact with the kernel directly. Instead, we interact with the second part of an operating system which is what?

Answer 21

User Space

Question 22

Windows OS is developed by who?

Answer 22

Microsoft

Question 23

Most PCs you buy come with what as the default operating system?

Answer 23

Windows

Question 24

What does PC stand for?

Answer 24

Personal Computer

Question 25

in today’s world, PC is more commonly referred to as a what?

Answer 25

Windows Computer

Question 26

The Mac OS is made by who?

Answer 26

Apple

Question 27

If you buy an Apple computer, it’ll come with what preloaded?

Answer 27

Mac OS

Question 28

what can a file be?

Answer 28

a word document, a picture, a song, anything

Question 29

what is the part of the kernel that makes multitasking possible like writing in a text document while listening to music or playing a video?

Answer 29

Process Scheduler

Question 30

what are important functions of the Kernel?

Answer 30

file storage & file management,
memory management
input/output management
process scheduling,
process management