Exam 3: Hardware, software, and Networks

________ is an open source variant of Unix that is free to use.

Mac OS is an example of a ________.

Which of the following statements about computer data is true?

Most e-commerce applications use the three-tier architecture.

A megabyte is equal to ________.

A digital subscriber line (DSL)operates on the same lines as voice telephones,but do not interfere with voice telephone service.

The standard way for distributing native applications is via a company store.

A ________ is a special-purpose computer that receives and transmits wired traffic on a LAN.

For two devices to communicate,they must use the same protocol.

A(n)________ connects computers that reside in a single geographic location.

Describe the three-tier architecture used in most e-commerce applications.

A commerce server is an application program that runs on a server-tier computer.

A Web page is a document that is coded in one of the standard page markup languages.

Simple Mail Transfer Protocol (SMTP)is the transmission protocol used primarily to move files over the Internet.

Explain how wired and wireless devices connect to a LAN.

Wireless LAN connections are governed by IEEE standard 802.3.

The CPU is considered "the brain" of the computer.

NIC (Network Interface Controller)devices in laptops and printers have been replaced by WNIC (wireless NIC)devices.

The computers in a hospital are most likely connected to each other using ________.

________ consist(s)of electronic components and related gadgetry that input,process,output,and store data according to instructions encoded in computer programs.