Cloud Computing

Question 1

Why do we need cloud computing

Answer 1

-Computation:processing capability
-Storage
-Services software, application

Question 2

Enterprise computing

Answer 2

• Fluctuating demands: businesses face different levels of workload and data processing requirement
• Insourcing: infrastructure and services in-house,
• Outsource them to third-party providers
  -Hybrid: adopt a hybrid approach that combines elements of both

Question 3

Utility computing

Answer 3

computing resources (such as processing power, storage, and network capacity)

Question 4

Computer cluster

Answer 4

Group of interconnected computers (nodes) that work together as a single system to perform tasks, share resources, and improve performance and availability

Question 5

Grid computing

Answer 5

Computing model that connects a network of computers (often geographically dispersed) to work collaboratively on complex tasks by sharing resources, processing power, and data.

Question 6

Virtualization

Answer 6

Partitioning a single computer/server to appear as multiple computers that can operate like individual virtual machines, managed on a single physical hardware system.

Question 7

Cloud computing

Answer 7

Network (internet) based computing that provides shared, configurable computing resources on demand

Can be easily provisioned and releasead with minimal or no management effort

Private, public, or hybrid cloud

Question 8

Benefits of cloud computing

Answer 8

Cost effective: no infraestructure and maintaining, flexible costs, utility-based pricing

Updated hardware and sfotware

Scalable: scale up and down

Elastic: adjust by usage and performance

Global

Reliable and secure

Question 9

Cloud solutions

Answer 9

Software as a Service (Saas)
Infraestructure as a Service (Iaas)
Platform as a Service (Paas)

Question 10

Software as a Service Saas

Answer 10

Is rented and it is focused on being a user instead, scale at will, pay per user. Vendor manages all

Question 11

Infraestructure as a Service IaaS
Office 365

Answer 11

Cost effective and rapid scaling of key infraestructure. Pay per use and keeps their own operations and data. Vendor manages most
Example: Microsoft Azure

Question 12

Platform as a Service

Answer 12

Assemble pieces at will. Vnedor and client manage 50-50

Example: Amazon EC2

Question 13

Major Cloud provides

Answer 13

Amazon: Amazo Web Services and AWS Educate
Microsoft: Azure, Azure for Education
Google: google cloud

Question 14

Concerns of cloud computing

Answer 14

Reliability and security. You need to find reputable and reliable cloud provides. VPN and encryption
Integration of multiple could, synchronization
Training to employees
Business/management concerns: controllability and data ownership