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Terms in this set (24)
Cloud
Elastic leasing of pooled computer resources over the internet
Elastic
Computing resources leased can be adjusted dynamically in a short span of time
Cloud Benefits
Automatically adjusts for unpredictable demand
Limits financial risks
Pooled
Many organizations share the same physical hardware through virtualization
Service Oriented Architecture
Way of designing computer programs so that they can be flexibly combined
Web Services
SOA designed programs that comply with Web service standards
Cloud-Based Hosting Pros
Small capital requirements
Speedy development
Superior flexibility and adaptability
Known cost structure
Security/disaster preparedness
No obsolescence
Industry-wide economies of scale
In-House Hosting Pros
Control of data location
In-depth visibility of security/disaster preparedness
Cloud-Based Hosting Cons
Dependency on vendor
Loss of control over data location
Little visibility into true security and disaster capabilities
In-House Hosting Cons
Significant capital
required
Significant developmental effort
Annual maintenance costs
Ongoing support costs
Staff and train personnel
Increased management requirements
Difficult to accommodate fluctuating demand Cost uncertainties
Obsolescence
Why the Cloud?
Cheap processors
Virtualization technology
Internet-based standards enable flexible, standardized process capabilities
Two Ways Organizations Use Cloud
Get cloud services from cloud service vendors
Have content delivery networks from cloud vendors
Cloud Services from Cloud Vendors
SaaS
PaaS
IaaS
SaaS Acronym
Software as a service
Software as a Service
Vendor provides the hardware infrastructure, operating system, and application programs
PaaS Acronym
Platform as a service
Platform as a Service
Vendor provides hosted computers, operating system, and possibly a DBMS
IaaS Acronym
Infrastructure as a service
Infrastructure as a Service
Vendor provides the cloud hosting of a bare server computer or data storage
Content Delivery Network
Information system that stores user data in many different geographical locations and makes that data available on demand
Aspects of CDN
System of distributed servers that deliver webpages and other Web content
Specialized type of PaaS
Minimizes latency
Stores and delivers based on geographic locations of users
VPN
Uses Internet to create the appearance of private, secure connections
Private Cloud
Cloud owned and operated by an organization for benefit
Virtual Private Cloud
Subset of a public cloud that has highly restricted, secure access
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Verified questions
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The _______ search algorithm requires that the array’s contents be sorted.
Verified answer
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