Cloud Computing

Question 1

Cloud computing?

Answer 1

An internet based computing service (providing servers, storage, databases, networks, software) to connected computers on demand

Question 2

Private cloud

Answer 2

(Used by banks)
The cloud is managed by an organization and serve it solely

Question 3

Public cloud

Answer 3

Cloud infrastructure is owned and managed by a third party cloud service provider and can have many tenants

Question 4

Community cloud

Answer 4

(Governments)

Managed by many organizations and supports a specific community (with the same interests)

Question 5

Hybrid cloud

Answer 5

Cloud infrastructure is composed of two or more of the other types

Question 6

SaaS

Answer 6

Software as a service.
- renting application software from a service provider rather than buying, and installing it.
- saves storage
- Examples Google Drive, slack, Microsoft 365

Question 7

PaaS

Answer 7

Platform as a service:
Hardware and software tools available over the internet upon which applications can be developed and executed

Example: Windows Azure, Wix

Question 8

IaaS

Answer 8

Infrastructure as a service

Offering computing resources on the Cloud,
- computing resources like storage, virtualisation, networks on demand
- often pay-as-you-go,

Examples: AWS EC2

Question 9

Benefits of SaaS

Answer 9

1. Increased accessibility
2. Automatic updates
3. Reliability and security
4. Cost reduction

Question 10

Benefits of IaaS

Answer 10

1. easier to scale
2. upgrade and maintenance are shouldered by the cloud service provider