IT infrastructure and emerging technologies

7 important questions on IT infrastructure and emerging technologies

What is the difference between two-tiered and mulititiered (n-tier) server architectures?

two tier is a client computer networked to a server computer. multitiered is a type where the work of the entire network is balanced over several different servers

What are the sevon major components for IT infrastructure

  • computer hardware - Dell, IBM HP
  • operating system platform - windows, unix, linux
  • enterprise software applications - SAP, oracle, microsoft
  • networking/telecommunications - windows server, linux, cisco
  • consultants and system integrators - IBM, HP, accenture
  • data management and storage - IBM DB2, oravle, SQL server
  • internet platforms - Apache, microsoft, unix

What is a blade server?

a computer consisting of a circuit board with processors, memory, and network connections that are stored in racks
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What are the contemporary hardware platform trends and explain

  • the mobile digital platform
  • consumerization of it and byod (bring your own device)
  • grid computing
  • virtualization (multiple operating systems) 70% capacity
  • cloud computing
  • green computing
  • high-performance/power-saving processirs
  • autonomic computing

Name the essential characteristics of cloud computing

  • on-demand self-service
  • ubiquitous network access - everyone with internet can access
  • location-independent resource pooling
  • rapid elasticity
  • measured service

What are the three different types of services for cloud computing?

cloud infrastructure as a service
cloud platform as a service
cloud software as a service

What are the three external sources for software

  • software from a commercial software vendor
  • software outsourcing
  • cloud-based software services and tools (called: SaaS) (googledrive)
  • mashups and apps

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