Quiz 6
Which of the following is an example of a PaaS?
Apple iCloud SalesForce.com Office 365 **Oracle on Demand** Amazon EC2
What is a VPN?
Virtual Private Network - a subset of public cloud that has highly restricted secure access - encrypts messages - on top of VPN, a company can use a Virtual Private Cloud (VPC) that holds its most secure data
When does the cloud not make sense?
When law requires industry to have physical control over data EX: Financial Institution
Which of the following is a reason why the cloud is preferred to in-house hosting?
You can get best-of-breed security/disaster preparedness.
Private Cloud
a cloud organized and operated by a company for its own benefit - only big companies use this if necessary - provides security within the organizational infrastructure but not outside
in cloud computing, resources are said to be "pooled" because _____.
a physical facility provides the combined power of many computers
the elastic leasing of pooled computing resources over the Internet is called _____.
cloud computing
All of the following are benefits of Content Delivery Networks, EXCEPT ________.
decreased, even potentially guaranteed, load time increased reliability **delivery of highly dynamic, constantly changing content** reduced load on the originating server protection from denial of service attacks
Content Delivery Networks
information system that stores user data in many different geographical locations and makes data available on demand - provides a specialized type of PaaS - a major use of the cloud to deliver content all around the world
PaaS, a type of cloud computing in which the customer provides the application software and data, and the cloud computing company provides the _____.
platform EX: Oracle OnDemand, SQL server
Software as a Service (SaaS)
requires little investment in hardware and software - SaaS vendor administers and manages the cloud servers and makes software available EX: Salesforce, google mail and drive, office 365, and Microsoft CRM Online
Remote action systems provide computer-based activity or action at a distance. All of the following are examples of remote action systems EXCEPT ________.
telehandling
he "cloud" is defined with all the following terms, EXCEPT ________.
**dedicated** Internet-based pooled leased elastic
Benefits of Cloud Computing
1. Trade capital expense for variable expense 2. Benefit from massive economies of scale - Average cost decreases as size of operation increases - Major cloud vendors operate enormous Web farms 3. Stop guessing capacity 4. Increase speed and agility (Development time from months-Weeks to days) 5. Stop spending money on running and maintaining data centers 6. Go global in minutes
In House Hosting
Benefits: - control of data location - in depth visibility of security
How can companies ensure that they have data privacy when using public clouds?
Contract with responsible, public companies.
Online Service Providers
EX: Microsoft, Amazon, Oracle, IBM, etc.
When leased computing resources can be increased or decreased dynamically, they are said to be ________.
Elastic
Remote Action Systems
IS that provide computer-based activity at a distance (which saves time travel and expense) - Telediagnosis : healthcare professionals use to diagnose illnesses - Telesurgery: telecommunication to link surgeons to robotic equipment at distant locations - Telelaw enforcement: cameras and motion detectors to give tickets EX: RedFlex System
Example of Security Issues with the Cloud
In total 80 million customers have been affected - stole names, adresses, SS EX: Premera Blue Cross - bank account and medical data of 11 million customers
Which of the following is a reason to select cloud-based hosting instead of in-house hosting?
It minimizes the risk of investing in technology that will soon become obsolete.
Which of the following statements is NOT part of the functional definition of a content delivery network (CDN)?
It replicates articles on servers, possibly worldwide, so as to minimize latency. **It is used to store and deliver content that changes frequently.** It is considered a specialized type of PaaS. It makes data available on demand. It is a system of hardware and software that stores user data in many different geographical locations.
What is one possible way in which cloud computing will positively affect the IT industry and its workforce?
It will increase the demand for IT workers in the long run.
An example of SaaS, or Software as a Service, is ________.
Oracle on Demand **Microsoft OneDrive and Office 365** Amazon Simple Storage Service Dropbox Amazon Elastic Cloud 2
IaaS
Provides basic hardware in the cloud - May acquire servers to load operating systems - Considerable technical expertise and management - Companies such as Falcon tend to choose PaaS or SaaS because of their added value
How does the text define "the cloud"?
The elastic leasing of pooled computer resources over the Internet Elastic: - automatically adjusts for unpredictable demand - limits financial risks Pooled: - same physical hardware - economies of scale
which of the following statements is true about the "scalable" feature of cloud computing?
Users of cloud computing don't need to pay for processing power they are not using.
setting up a secure server for a pet grooming business using a _____.
VPN
Cloud Computing (Cloud based hosting)
the on-demand delivery of computer power, database storage, applications, and other IT resources through a cloud services platform via the internet with pay-as-you-go pricing
Cloud resources are described as pooled because ________.
the same physical hardware is shared by many different organizations
The secure connection between a VPN server and a VPN client is often referred to as a ________.
tunnel
