Chapter 5 IS 301

_________ consists of a set of physical devices and software applications that are required to operate the entire enterprise.

IT infrastructure

Which of the following best defines IT infrastructure?

IT infrastructure is the shared technology resources that provide the platform for the firm's specific information system applications.

__________ is cloud computing services from remote providers where users either pay only for the amount of computing power they actually use or are billed on a monthly or annual subscription basis.

On-demand computing

Which of the following best describes open source software?

Open source software is free software that is produced by a community of several hundred thousand programmers around the world.

Microsoft Windows, Unix, Linux, Mac OS X, Chrome, Android, and iOS are all examples of which component?

Operating systems platforms

__________ organizes computing resources so that their use is not restricted by physical configuration or geographic location

Virtualization

Which of the following best describes virtualization?

Virtualization organizes computing resources so that their use is not restricted by physical configuration or geographic location.

Which of the following refers to loosely coupled software components based on open Web standards that work with any application software and operating system?

Web services

Java is __________.

an operating system- and hardware-independent programming language that is the leading interactive programming environment for the Web

When dealing with platform and infrastructure change, __________ refers to the ability of a computer, product, or system to expand to serve a large number of users without breaking down.

scalability

Which of the following best describes a multicore processor?

A multicore processor is a microprocessor to which two or more processing cores have been attached for enhanced performance.

Which of the following best describes a cloud-based software service?

Cloud-based software and the data it uses are hosted on powerful servers in massive data centers and can be accessed with an Internet connection and a standard Web browser.

IBM DB2, Oracle, SQL Server, Sybase, MySQL, EMC, Apache, and Hadoop are all examples of which component?

Data management and storage

Which component is responsible for organizing and managing the firm's data so that they can be efficiently accessed and used?

Data management and storage

Which of the following has been a major threat to the Wintel dominance as a computer platform in recent years?

Increasing iPhone and Android device sales

Which of the following statements best describes software as a service (SaaS)?

It consists of services for delivering and providing access to software remotely as a Web-based service.

__________ is an operating system created by the open source community.

Linux

Which of the following stages of IT infrastructure evolution was a period of highly centralized computing under the control of professional programmers and system operators?

Mainframe era

Which of the following best describes Moore's Law?

Moore's Law deals with the exponential increase in processing power and decline in the cost of computer technology, stating that every 18 months, the power of microprocessors doubles and the price of computing falls in half.

Which of the following statements best describes nanotechnology?

Nanotechnology uses individual atoms and molecules to create computer chips and other devices that are thousands of times smaller than current technologies permit.

Which of the following types of cloud computing is owned and maintained by a cloud service provider and made available to the general public or an industry group?

Public cloud

Which of the following consist(s) of services for delivering and providing access to software remotely as a Web-based service?

Software as a service

Which of the following best describes the total cost of ownership (TCO) model?

The total cost of ownership (TCO) model can be used to analyze direct and indirect costs to help firms determine the actual cost of specific technology implementations.