Key Tech Terms

Question 1

What is vertical scaling?

Answer 1

the enhancement of memory, processing power, networking, and other technical capabilities of an existing cloud server

Question 2

What is horizontal scaling?

Answer 2

the enhancement of cloud bandwidth by adding new computing nodes or machines

Question 3

If you want to increase availability, what type of scaling should you utilize?

Answer 3

horizontal

Question 4

What are the 3 W’s of Scaling?

Answer 4

What do we scale, Where do we scale, When do we scale

Question 5

What is Prometheus (not the dude who gave us fire and is having his insides eaten daily by an eagle but the software tool)?

Answer 5

A free software used for event monitoring and alerting

Question 6

Explain the difference between managed and unmanaged

Answer 6

Managed: AWS takes care of capacity an compute for you
Unmanaged: You take care of everything

Question 7

What does ETL stand for?

Answer 7

Extract, Tranform, Load

Question 8

What is a container?

Answer 8

A container is a standard unit of software that packages up code and all its dependencies so the application runs quickly and reliably from one computing environment to another (think of it as a easy way to bring code to different environment easily)

Question 9

what is a hypervisor?

Answer 9

software that creates and runs virtual machines

Question 10

What is a Dockerfile?

Answer 10

a text document that contains all the commands or instructions that will be used to build an image

Question 11

What is an image in regards to containers?

Answer 11

an immutable file that contains the code, libraries, dependencies, and configuration files needed to run an application

Question 12

What is a registry in regards to containers?

Answer 12

stores docker images for distribution

Question 13

A container a running copy of an image?

Answer 13

Yes

Question 14

A container a running copy of an image?

Answer 14

Yes

Question 15

What is a DDos attack?

Answer 15

A distributed denial of service attack is an attack that attempts to make your website or application unavailable to your end user

Question 16

What is a SYN flood?

Answer 16

A layer 4 DDoS attack that works at the transport layer. It uses the built in the patience of the TCP stack to overwhelm a server by sending a large number of SYN packets and then ignoring the acknowledgments returned by the server

Question 17

What is amplification attack?

Answer 17

an attacker sends a third party server a request using a spoofed IP address that the server then responds to with a greater payload than the initial request

Question 18

What is a layer 7 attack?

Answer 18

A type of DDoS attack that floods a web server with a lot of Get or Post requests

Question 19

Regarding security, what does PII stand for?

Answer 19

Personally identifiable information

Question 20

What is PaaS?

Question 20

What is PaaS?

Answer 20

platform as a service is single stop application deployment model. You bring code and the provider builds everything for you, deploys your application, and then manages it going forward

Question 21

What is IaaS?

Answer 21

infrastructure as a service is a form of cloud computing service that compute, networking, and storage resources

Question 22

What is SaaS?

Answer 22

a type of cloud service that allows users access to applications over the internet instead of downloading them

Question 23

What is caching?

Answer 23

locally stored data

Question 24

What are the two types of caching?

Answer 24

External and internal

Question 25

What is external caching?

Answer 25

data that is going to be returned by our users

Question 26

What is internal caching?

Answer 26

data used to speed up our database

Question 27

What is Memcache?

Answer 27

simple database caching solution

Question 28

What is Redis?

Answer 28

a database caching solution that can be a standalone database