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Question 1

iaas

Answer 1

infrastructure as a service lets you use a server like a whole preconfigured virtual machine thingy. linode, windows azure. network can be integrated.

Question 2

naas

Answer 2

networking as a service. companies can offshore networking services: security, wan, routing, etc

Question 3

saas

Answer 3

right software for business. license, security, updates, maintenance, data o/s, google suite, microsoft office, dropbox.

Question 4

Paas

Answer 4

platform as a service. you can deploye. build code, store info in database, deploy it. Heroku.

Question 5

directory as a service, daas.

Answer 5

manage users, access, authorization. windows active directory. daas.

Question 6

cons to cloud:

Answer 6

recurring cost, outward dependence.

Question 7

how to set up a server

Answer 7

install service or application on server like a file storage service which will supply to requests.

Question 8

server operating system

Answer 8

regular os that are optimized for server functionality. allow more ram capacity, connections.

Question 9

server operating systems:

Answer 9

usually more secure. additional services built in.

Question 10

virtualized server:

Answer 10

put lots of virtualized instances on one server.

Question 11

virtual server performance

Answer 11

a service running on dedicated hardware has better performance than virtual.

Question 12

cost of vs

Answer 12

expensive.

Question 13

benefit to vs

Answer 13

many services on 10 instances on one physical server.

Question 14

cheaper to run several services

Answer 14

on one machine than many services on many machines

Question 15

advantage with updates with vs:

Answer 15

you can migrate a service to another physical location while you do work.

Question 16

pof:

Answer 16

when you put a service on a physical machine, you have a weak pof, point of failure

Question 17

how to prevent pof singularity?

Answer 17

have redundant servers set up

Question 18

remote access: why?

Answer 18

so you can troubleshoot an issue instantly from anywhere.

Question 19

openssh

Answer 19

most popular linux remote access tool

Question 20

how to ssh

Answer 20

install ssh client on machine connecting from. instqll ssh on server connecting to.
my client machine.
run command: sudo apt-get install openssh-client
download
install openssh server on machine you want to access.

Question 21

ssh server:

Answer 21

a process that listens for incoming ssh connections.

Question 22

sudo apt-get install openssh-server

Answer 22

check server is good to go. run its.

Question 23

client, test. ssh: server IP addres.

Answer 23

username, password, connect to server.

test by going to desktop of server, create new folder, go back into server, list files, see folder test, ssh into machine.

Question 24

remote system examples:

Answer 24

laptops, PC, workstation, server, data center machines, other equipment

Question 25

how does remote access software save time?

Answer 25

don’t need to travel to the system’s physical location.