CIS 527

Lab 5 - The Cloud Overview

What is the cloud?

Image Source: Randall Munroe (XKCD)

Image Source: Wikipedia

Amazon Founder Jeff Bezos with an 1890s electric generator from a Belgian beer brewery

Image Source: Information Week

Jeffrey Energy Center near Wamego, KS

Image Source: Open Buildings

Image Source: Nicholas Carr

Cloud Computing

  • Orignally "Time Sharing" in 1950s
  • Network Diagrams used "Cloud" Symbol for Unknown Networks & Systems
  • Business VPNs in 1990s
  • Amazon Elastic Compute Cloud (EC2) in 2006

Image Source: Wikipedia

Image Source: Amazon

Service-Oriented Architecture

Image Source: Wikipedia

Cloud Computing Characteristics

According to NIST
  • On-Demand Self-Service
  • Broad Network Access
  • Resource Pooling
  • Rapid Elasticity
  • Measured Service

Why Cloud Computing?

  • Location Independent
  • Multi-Tenancy (Shared Costs)
  • Reliability
  • Scalability / Elasticity
  • Security?

Image Source: Right Scale

Image Source: BMC Blogs

Image Source: David Ng at Oursky

Image Source: David Ng at Oursky

Image Source: Wikipedia

Cloud Threats

  • Insecure Interfaces & APIs
  • Data Loss & Leakage
  • Hardware Failure
  • Side-Channel Attacks
  • Legal Data Ownership
  • Lack of Physical Control
  • Bigger Target for Hackers


  • Architecture
  • Security
  • Software
  • Hardware
  • Integration
  • Control
  • Business Transformation

Source: thinkJar Blog - Esteban Kolsky

Image Source: 2nd Watch

The Cloud

A Term for Many Things
  • The Cloud is The Internet
  • The Cloud is a Delivery Model
  • The Cloud is a Computing Architecture

Source: thinkJar Blog - Esteban Kolsky

Me: The Cloud is a Point of View