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Questions and Answers
Network access points (NAPs) and metropolitan area exchanges (_______) are hubs where the backbone intersects regional and local networks and where backbone owners connect with one another.
Network access points (NAPs) and metropolitan area exchanges (_______) are hubs where the backbone intersects regional and local networks and where backbone owners connect with one another.
MAEs
Client computers running Web browser and other software can access an array of services on _______ over the Internet.
Client computers running Web browser and other software can access an array of services on _______ over the Internet.
servers
A _______ phone call digitizes and breaks up a voice message into data packets that may travel along different routes before being reassembled at the final destination.
A _______ phone call digitizes and breaks up a voice message into data packets that may travel along different routes before being reassembled at the final destination.
VoIP
File Transfer _______ (FTP) is a protocol used for transferring files over the Internet.
File Transfer _______ (FTP) is a protocol used for transferring files over the Internet.
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A processor nearest the call’s destination, called a _______, arranges the packets in the proper order and directs them to the telephone number of the receiver or the IP address of the receiving computer.
A processor nearest the call’s destination, called a _______, arranges the packets in the proper order and directs them to the telephone number of the receiver or the IP address of the receiving computer.
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The _______ Wide Web is an internet service that allows users to access and share information over the Internet.
The _______ Wide Web is an internet service that allows users to access and share information over the Internet.
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The major source of Internet advertising revenue is via ______ marketing
The major source of Internet advertising revenue is via ______ marketing
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Web pages are created using a text markup language called ______
Web pages are created using a text markup language called ______
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Web page addresses are composed of the ______ name of the web site and the file location of the individual web page
Web page addresses are composed of the ______ name of the web site and the file location of the individual web page
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The primary method of finding information of interest on the Web is through ______
The primary method of finding information of interest on the Web is through ______
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Google visited over 100 billion ______ in 2010
Google visited over 100 billion ______ in 2010
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Web pages available only to subscribers for a fee are known as ______ content
Web pages available only to subscribers for a fee are known as ______ content
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Net marketplaces are also known as ______ in the context of B2B e-commerce.
Net marketplaces are also known as ______ in the context of B2B e-commerce.
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A net marketplace generates revenue from ______ fees and other services.
A net marketplace generates revenue from ______ fees and other services.
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In a net marketplace, prices can be established through ______, auction, RFQs, or fixed prices.
In a net marketplace, prices can be established through ______, auction, RFQs, or fixed prices.
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Direct goods are goods used in a ______ process, such as sheet steel for auto body production.
Direct goods are goods used in a ______ process, such as sheet steel for auto body production.
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Indirect goods are all other goods not directly involved in the ______ process, such as office supplies or products for maintenance and repair.
Indirect goods are all other goods not directly involved in the ______ process, such as office supplies or products for maintenance and repair.
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Exostar is an aerospace and defense industry-sponsored Net marketplace that focuses on ______ contract purchasing relationships and on providing common networks and computing platforms for reducing supply chain inefficiencies.
Exostar is an aerospace and defense industry-sponsored Net marketplace that focuses on ______ contract purchasing relationships and on providing common networks and computing platforms for reducing supply chain inefficiencies.
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The ______ operation retrieves just those parts in the PART table whose part number is 137 or 150.
The ______ operation retrieves just those parts in the PART table whose part number is 137 or 150.
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Access has ______ for these commands.
Access has ______ for these commands.
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The ______ operation uses the foreign key of the Supplier Number provided by the PART table to locate supplier data from the Supplier Table.
The ______ operation uses the foreign key of the Supplier Number provided by the PART table to locate supplier data from the Supplier Table.
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The three basic operations of a relational DBMS are the ______, join, and project operations.
The three basic operations of a relational DBMS are the ______, join, and project operations.
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The ______ operation limits the columns to be shown to be simply the part number, part name, supplier number, and supplier name.
The ______ operation limits the columns to be shown to be simply the part number, part name, supplier number, and supplier name.
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Capital budgeting models rely on measures of the firm's ______ outflows and cash inflows.
Capital budgeting models rely on measures of the firm's ______ outflows and cash inflows.
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The ______ method is a capital budgeting model that calculates the time it takes to recover an investment.
The ______ method is a capital budgeting model that calculates the time it takes to recover an investment.
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The real options pricing model is useful when future ______ streams of IT projects are uncertain.
The real options pricing model is useful when future ______ streams of IT projects are uncertain.
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Real options pricing models give managers flexibility to ______ IT investment or test the waters with small pilot projects.
Real options pricing models give managers flexibility to ______ IT investment or test the waters with small pilot projects.
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An option is essentially the right, but not the ______, to act at some future date.
An option is essentially the right, but not the ______, to act at some future date.
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Financial models do not take into account ______ and organizational dimensions that may affect costs and benefits.
Financial models do not take into account ______ and organizational dimensions that may affect costs and benefits.
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Study Notes
Network Backbone and Internet Services
- Network access points (NAPs) and metropolitan area exchanges (MAEs) act as hubs where backbone networks connect with regional and local networks.
- MAEs (metropolitan area exchanges) are hubs where the backbone intersects regional and local networks and where backbone networks connect with one another.
- Internet services include e-mail, chatting and instant messaging, newsgroups, Telnet, File Transfer Protocol (FTP), World Wide Web, VoIP, and Virtual private network (VPN).
Client Server Computing
- Client computers running web browsers and other software can access various services on servers over the Internet.
- Services may run on a single server or multiple specialized servers.
- Services include web sites (HTTP), e-mail (SMTP), file transfer (FTP), and newsgroups (NNTP).
Voice Over Internet Protocol (VoIP)
- VoIP phone calls digitize and break up voice messages into data packets that travel along different routes before being reassembled at the final destination.
- A processor, called a gateway, arranges packets in the proper order and directs them to the telephone number of the receiver or the IP address of the receiving computer.
World Wide Web
- The Web is an interlinked connection of web sites, collections of web pages linked to a home page.
- Web pages are created using HTML and transmitted to user's web browsers by HTTP.
- Web page addresses (URLs) consist of the domain name of the web site and the file location of the individual web page.
Search Engines and Bots
- Search engines are a primary method of finding information on the Web, using complex algorithms and page ranking techniques to locate results.
- Shopping bots use intelligent agent software for searching the Internet for shopping information.
Business-to-Business E-commerce
- Net marketplaces (e-hubs) are online marketplaces where multiple buyers can purchase from multiple sellers.
- Net marketplaces generate revenue from transaction fees and other services.
- They can focus on direct or indirect goods and can be vertical or horizontal marketplaces.
Relational Database Management Systems (RDBMS)
- The three basic operations of a relational DBMS are select, join, and project.
- The select operation retrieves specific data from a table.
- The join operation combines data from two different tables using a foreign key.
- The project operation limits the columns to be displayed.
Capital Budgeting for Information Systems
- Capital budgeting models measure the value of investing in long-term capital investment projects.
- Models rely on measuring cash outflows (expenditures) and cash inflows (increased sales, reduced costs).
- Examples of capital budgeting models include the payback method, accounting rate of return on investment, net present value, and internal rate of return (IRR).
- Real options pricing models can be used when future revenue streams of IT projects are uncertain and up-front costs are high.
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Description
This quiz covers the basics of computer networks, including network access points, metropolitan area exchanges, and various internet services such as email, chat, newsgroups, and more.
