CC

Question 1

cloud computing

Answer 1

using a network of remote servers hosted on the internet to store, manage and process data, rather than a local server/computer

Question 2

IaaS - Infrastructure as a Service

Answer 2

Provides access to networking, VMs and data storage (Eg. Azure)

Question 3

4 common Cloud services

Answer 3

Compute, networking, storage, databases

Question 4

benefits of Cloud computing

Answer 4

1. cost effective (pay as you go)
2. global (regions all over the world)
3. secure (cloud provider takes care of security)
4. reliable (data backups, disaster recovery, data replication, fault tolerance)
5. scalable
6. elastic (automatic scaling depending on demand)
7. current (automatic hardware and software updates)

Question 5

SaaS - Software as a Service

Answer 5

a product run and managed by the service provider (For Customers)

Question 6

PaaS - Platform as a Service

Answer 6

Focus on deployment and management of YOUR apps (EG. heroku) (For Devs)

Question 7

Public cloud deployment model

Answer 7

Everything build on cloud (Aka cloud-native)

Question 8

Private cloud deployment model

Answer 8

Everything built on premise

Question 9

Hybrid deployment model

Answer 9

Using both on-premis and a cloud-service-provider

Question 10

Cross-cloud deployment model

Answer 10

using multiple cloud service providers

Question 11

CAPEX vs. OPEX

Answer 11

capital expenditure vs operational expenditure.

spending money upfront (buying physical computers) vs smaller, over-time payments (leasing software and cloud resources)

Question 12

Availability (Highly Available)

Answer 12

The ability to remain available (by ensuring there is no single point of failure)

Question 13

Scalability

Answer 13

The ability to grow rapidly

Question 14

Elasticity

Answer 14

the ability to grow or shrink to meet demand

Question 15

fault tolerance

Answer 15

the ability to prevent a failure

Question 16

disaster recovery (Highly durable)

Answer 16

Ability to recover from a failure