IIMT 2601 CORE REVIEW ANSWERS AND QUESTIONS
SET A+
✔✔OSS - Benefits - ✔✔- low cost
- reliability
- security
- scalability
- agility and time to market
✔✔OSS - Problems - ✔✔- administrative cost
- support cost
- legal issues
✔✔Total Ownership Cost (TCO) - ✔✔- the purchase price (the cost of acquisition) and
the costs of operation (operating cost)
- operating costs include repairs, security, training, maintenance, support, upgrades,
service
✔✔How do OSS vendors make money? - ✔✔by selling ads, support, and consulting
services
✔✔LAMP - ✔✔- a web service solution stacks of four open source softwares
- consists of an operating system, a web server, a database, and a programming
language
- powers many of the sites visited each day
✔✔LAMP - ✔✔Linux, Apache, MySQL, Perl/Python/PHP
✔✔Cloud Computing - ✔✔- defined as a type of computing that relies on sharing
computing resources rather than having local servers or personal devices to handle
applications
- shared IT infrastructure that contains large pools of systems that are linked together
- advocates "everything as a service"
, ✔✔The Cloud - ✔✔Gmail, Dropbox, Web Office, Wolfram Alpha, Prezi
✔✔How does cloud computing work? - ✔✔- data is sent to remote processors via the
internet, the process is completed, and the resulting data is sent back
- enables companies to consume, compute resources as a utility rather than having to
build and maintain computing infrastructures in-house
✔✔Cloud Computing - Benefits - ✔✔- easily upgraded
- lower cost of ownership
- productivity anywhere
- off site data storage
- always up
- no IT maintenance costs
- disaster assistance
✔✔Enterprises using Cloud Computing - ✔✔- Amazon Web Services
- Google Cloud Platform
- Aliyun.com
✔✔Software as a Service (SaaS) - ✔✔- firm subscribes to a third-party software and
receives a service that is delivered online
- cloud providers manage the infrastructure and platforms that run the applications
- sometimes referred to as "on-demand software"
✔✔SaaS - Payment System - ✔✔- is usually priced on a pay-per-use basis or using a
subscription fee model
- others: free services supported by advertisement / promote the sale of upgraded or
premium versions for additional fees
✔✔SaaS - Examples - ✔✔Microsoft Office 365, Dropbox, Gmail, Salesforce
✔✔SaaS - Benefits - ✔✔- lower costs and financial risk mitigation
- faster development times and variable operating expense
- scalable systems
- higher quality and service levels
- remote access and availability
- limits development to a single platform
- tighter feedback loop
- ability to instantly deploy bug fixes and product enhancements
- lower distribution costs
- greater accessibility
- reducing software piracy
✔✔SaaS - Risks - ✔✔- dependence on a single vendor
- concern about the long term viability of partner firms
SET A+
✔✔OSS - Benefits - ✔✔- low cost
- reliability
- security
- scalability
- agility and time to market
✔✔OSS - Problems - ✔✔- administrative cost
- support cost
- legal issues
✔✔Total Ownership Cost (TCO) - ✔✔- the purchase price (the cost of acquisition) and
the costs of operation (operating cost)
- operating costs include repairs, security, training, maintenance, support, upgrades,
service
✔✔How do OSS vendors make money? - ✔✔by selling ads, support, and consulting
services
✔✔LAMP - ✔✔- a web service solution stacks of four open source softwares
- consists of an operating system, a web server, a database, and a programming
language
- powers many of the sites visited each day
✔✔LAMP - ✔✔Linux, Apache, MySQL, Perl/Python/PHP
✔✔Cloud Computing - ✔✔- defined as a type of computing that relies on sharing
computing resources rather than having local servers or personal devices to handle
applications
- shared IT infrastructure that contains large pools of systems that are linked together
- advocates "everything as a service"
, ✔✔The Cloud - ✔✔Gmail, Dropbox, Web Office, Wolfram Alpha, Prezi
✔✔How does cloud computing work? - ✔✔- data is sent to remote processors via the
internet, the process is completed, and the resulting data is sent back
- enables companies to consume, compute resources as a utility rather than having to
build and maintain computing infrastructures in-house
✔✔Cloud Computing - Benefits - ✔✔- easily upgraded
- lower cost of ownership
- productivity anywhere
- off site data storage
- always up
- no IT maintenance costs
- disaster assistance
✔✔Enterprises using Cloud Computing - ✔✔- Amazon Web Services
- Google Cloud Platform
- Aliyun.com
✔✔Software as a Service (SaaS) - ✔✔- firm subscribes to a third-party software and
receives a service that is delivered online
- cloud providers manage the infrastructure and platforms that run the applications
- sometimes referred to as "on-demand software"
✔✔SaaS - Payment System - ✔✔- is usually priced on a pay-per-use basis or using a
subscription fee model
- others: free services supported by advertisement / promote the sale of upgraded or
premium versions for additional fees
✔✔SaaS - Examples - ✔✔Microsoft Office 365, Dropbox, Gmail, Salesforce
✔✔SaaS - Benefits - ✔✔- lower costs and financial risk mitigation
- faster development times and variable operating expense
- scalable systems
- higher quality and service levels
- remote access and availability
- limits development to a single platform
- tighter feedback loop
- ability to instantly deploy bug fixes and product enhancements
- lower distribution costs
- greater accessibility
- reducing software piracy
✔✔SaaS - Risks - ✔✔- dependence on a single vendor
- concern about the long term viability of partner firms
