IT Infrastructure technology is purely a set of physical devices and software applications that are required to operate the entire enterprise.
N-tier computing is a multi-tier, load-balancing scheme for Web-based application in which significant parts of Web site content, logic, and processing are performed by smaller, less expensive servers located nearby the user.
An application server may reside on the same computer as a Web server or on its own dedicated computer
Enterprise integration requires software that can link disparate applications and enable data to flow freely among different parts of the business.
Like an ASP, a Web hosting service provides shared applications to subscribed users, but does this through a web portal
SANs create large central pools of storage that can be rapidly accessed and shared by multiple servers
Java software is designed to run on any computer or computing device, regardless of specific microprocessor or operating system it uses.
Web services can exchange information between two different systems regardless of the operating system or programming languages on which the systems are based.
Whereas XML is limited to describing how data should be presented in the form of Web pages, HTML can perform presentation, communication, and data storage tasks
Hypertext markup language specifies how text, graphics, video, and sound are placed on a Web page document.
The collection of Web services that are used to build a firm's software systems constitutes what is known as a service-oriented architecture
Today most business firms have discontinued operating their legacy systems, replacing these with inexpensive Web services and hosted software.
Scalability refers to the ability of a computer, product, or system to expand to serve a large number of users without breaking down.
Which of the following is NOT an IT infrastructure service component?
a. Operating system software
b. Computing platforms to provide a coherent digital environment
c. physical facility management to manage the facilities housing physical components
d. IT management services to plan and develop the infrastructure and provide project management
Operating system software
Which type of infrastructure services provides voice and video connectivity to employees, customers, and suppliers?
Place the following eras of IT infrastructure evolution in order, from earliest to most recent:
(1) cloud computing era (2) Client/server (3) enterprise era, (4) personal computing, and (5) mainframe and minicomputer.
The introduction of the minicomputer.
a. allowed computers to be customized to the specific needs of departments or business units.
b. enable decentralized computing.
c. Offered new, powerful machines at lower prices than mainframes.
d. All the above
All the above
A client computer networked to a server computer, with processing split between the two types of machines, is called a(n)
In a multi-tiered network
a. the work of the entire network is centralized.
b. The work of the entire network is balanced over several levels of servers.
c. Processing is split between clients and servers.
d. processing is handled by multiple, geographically remote clients.
The work of the entire network is balanced over several levels of servers.
Interpretations of Moore's law assert that
a. Computing power doubles every 18 months.
b. Transistors decrease in size 50% every two years
c. data storage costs decrease by 50% every 18 months.
d. none of the above
Computing power doubles every 18 months.
Which of the following factors provides an understanding of why computing resources today are ever more available than in previous decades?
a. Network economics
b. law of mass digital storage and Moore's law
c. declining communications costs, universal standards, and the Internet.
d. All of the above
all of the above
Today's nanotechnology-produced computer transistors are roughly equivalent in size to
a. the width of a fingernail
b. a human hair.
c. a virus
d. an atom
Specifications that establish the compatibility of products and the ability to communicate in a network are called.
a. network standards
b. Telecommunications standards
c. Technology standards.
d. internet standards
____ unleash powerful economies of scale and result in declines in manufactured computer products.
The multitasking, multi-user, operating system developed by Bell Laboratories that operates on a wide variety of computing platforms is?
c. os x.
the network standard for connecting desktop computers into local area networks that enabled the widespread adoption of client/server computing and local area networks and futher stimulated the adoption of personal computers is
Software that manages the resources of the computer is called.
a. Operating system software
b. application software.
c. Data management software.
d. network software
Operating system software
A SAN is a ______ network.
a. Server area
b. Storage area
c. scalable architecture
d. service-oriented architecture
The leading networking hardware providers include...
a. Dell, HP/Comaq, and IBM.
b. Cisco, Alcatel-lucent, and nortel
c. seagate, maxtor, and western digital.
d. IBM, oracle, and sun.
Cisco, Alcatel-Lucent, and Nortel
As referred to in the text, legacy systems are?
a. traditional mainframe-based business information systems.
b. electronic spreadsheets used on a PC.
c. any pre-1990 Wintel systems
d. systems found on older ASPs.