Which of the following typically involves the provision of dynamically scalable and often virtualized resources as a service over the Internet?

Question

Options

• AThin client
• BCloud computing
• CApplication Virtualization
• DTerminal services

• A
  13% (6)
• B
  74% (35)
• C
  9% (4)
• D
  4% (2)

Explanation

Cloud computing typically involves the provision of dynamically scalable and often virtualized resources as a service over the Internet. It provides common business applications online that are accessed from a web browser, while the software and data are stored on the servers. Answer option A is incorrect. A thin client is a low-cost computer, often legacy desktops, with limited resources. Thin clients run the latest operating systems (Windows 2000 Server and Windows Server 2003) and applications through special software such as the Terminal Services application. There is no requirement to install and configure applications on each computer, as the software are installed and configured in a centralized location on the server. Hence, the maintenance tasks are centralized. Answer option D is incorrect. Terminal Services is a multisession environment that provides remote computers access to Windows-based programs running on a server. When a user runs a program on a Terminal Server, the application execution takes place on the server, and only the keyboard, mouse and display information are transmitted over the network. Each user sees only his individual session, which is managed transparently by the server operating system, and is independent of any other client session. Answer option C is incorrect. Application virtualization is an umbrella term that describes software technologies that improve portability, manageability and compatibility of applications by encapsulating them from the underlying operating system on which they are executed.

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