Q&A Hero

Q: Online analytical processing (OLAP)and data mining are essentially the same thing. a. True b. False

Q: Data warehouses keep the same data for long periods of time so the probability that the sources contain "dirty data" is low. a. True b. False

Q: A data warehouse stores historical data that has been extracted from operational systems and external sources. a. True b. False

Q: In-memory databases (IMDBs )perform best on multiple multicore central processing units (CPUs) that can process parallel requests to the data. a. True b. False

Q: In a database management system (DBMS), afront-end application interacts with other programs or applications; it only indirectly interacts with people or users. a. True b. False

Q: The role of a data administrator is to plan, design, create, operate, secure, monitor, and maintain databases. a. True b. False

Q: The database management system (DBMS) serves as an interface between an application program and a database. a. True b. False

Q: One of the final steps in installing and using a large database involves "telling" the database management system (DBMS) the logical and physical structure of the data and the relationships among the data for each user. a. True b. False

Q: A NoSQL database is highly scalable, meaning that a large database may be distributed across hundreds, thousands, or even tens of thousands of servers running the same NoSQL database management system. a. True b. False

Q: The goal of aStructured Query Language (SQL) database is to provide faster performance and greater scalability. a. True b. False

Q: A database installed on a personal computer is typically meant for a single user. a. True b. False

Q: In the context of relational database model, selecting involves combining two or more tables. a. True b. False

Q: One data cleansing solution is to identify and correct the data by cross-checking it against a validated data set. a. True b. False

Q: Oracle is currently the market leader in general purpose databases, with about three-fourths of the multibillion dollar database market. a. True b. False

Q: One of the primary advantages of a relational database is that it reduces data redundancy and allows data to be organized more logically. a. True b. False

Q: In the relational model, each column in the table represents an entity, and each row represents an attribute of that entity. a. True b. False

Q: A field represents a circuit that is either on or off. a. True b. False

Q: A data model is a diagram of data attributes and their relationships. a. True b. False

Q: When organizing a database,one of thekey considerations include determining who will have access to the collected data. a. True b. False

Q: A database should be designed to store all data relevant to a business and provide quick access and easy modification. a. True b. False

Q: To use the database approach to data management, no additional software is required. a. True b. False

Q: Today, most organizations use the traditional approach to data management, where multiple information systems share a pool of related data. a. True b. False

Q: Several records can share the same primary key. a. True b. False

Q: The specific value of an attribute is called a data entity. a. True b. False

Q: By separating descriptions of the characteristics of an object, activity, or individual, a record can provide a complete description of it. a. True b. False

Q: A collection of fields about a specific object is a record. a. True b. False

Q: A database, a database management system (DBMS), and the application programs that use the data make up a database environment. a. True b. False

Q: Explain entity-relationship (ER) diagrams.

Q: Describe business intelligence (BI).

Q: Discuss three disadvantages of using proprietary software.

Q: Explain what is Electronic Product Environmental Assessment Tool (EPEAT).

Q: Identify three advantages of the use of solid state secondary storage devices (SSDs)over magnetic or optical media.

Q: What is grid computing? How does it work?

Q: Briefly explain thethree associated elements of acentral processing unit (CPU).

Q: The simultaneousexecution of the same task onmultiple processors to obtain resultsfaster is known as _____.

Q: _____ is software that is mass produced by software vendors to address needs that are common across business, organizations, or individuals.

Q: A(n) _____ uses modular application services to allow users to interact with systems and systems to interact with each other.

Q: _____ systems are usually designed for a specific purpose in a specific device, are usually proprietary or custom-created and owned by the manufacturer.

Q: _____ is a mobile operating system from Google frequently found in smartphones.

Q: ______ is an arrangement that allows Mac users to set up their computer to run both Windows and Mac OS Xand select which platformthey want to work with when they boot their computer.

Q: _____ is a Linux-based operating system for netbooks and nettops,which are notebooks and desktop PCs primarily used to access Web basedinformation and services such as email, Web browsing, social networks, andGoogle online applications.

Q: Eight bits together form a _____.

Q: _____ allows different threads of a single program to run concurrently.

Q: A(n) _____ is a climate-and-access-controlled building or a set of buildingsthat houses the computer hardware that delivers an organization's data andinformation services.

Q: The scope of the problems and opportunities addressed by a particular organization is called its ______.

Q: _____ describes program functions to help a user operate a computer system.

Q: The clock speed for personal computersis measured in the range of multiple _____.

Q: A(n) _____ is an inexpensive desktop computer designed to be smaller and lighter, and consume much less power than a traditional desktop computer.

Q: _____ are portable, lightweight personal computers that cancome with or without a keyboard and allow a user to roam the office, home, orfactory floor carrying the device like a clipboard.

Q: The digital media equivalent of a conventional printed book is called a(n) _____.

Q: A(n) _____ is a dot of color on a photo image or a point of light on a display screen.

Q: _____ is a data storage model in which a data storage service provider rents space to people and organizations.

Q: A(n) _____ is a set of physical connections (such as cables andprinted circuits) that can be shared by multiple hardware components so theycan communicate with one another.

Q: The software associated with a virtual tape system is sometimes called a(n) _____.

Q: _____ means that data must be accessed in the order in which it is stored.

Q: Each central processing unit (CPU) produces a series of electronic pulses at a predetermined rate, called the ______,which affects machine cycle time.

Q: _____ are high-speed storage areas used to temporarily hold small units of program instructions and data immediately before, during, and after execution by the central processing unit (CPU).

Q: The _____ holds program instructions and data, is closely associated with the central processing unit (CPU).

Q: The _____ unit of the central processing unit (CPU)performs mathematical calculations and makes logical comparisons.

Q: A _____ is a defect in a computer program that keeps it from performing as its users expect it to perform.a. software bug b. glitchc. piracy d. faulty upgrade

Q: _____ are sets of keywords, symbols, and rules for constructing statements that people can use to communicate instructions to a computer.a. Computing languages b. Networking languagesc. Command languages d. Programming languages

Q: Many organizations are turning to _____, a set of integrated programs that manages a company's vital business operations for an entire multisite, global organization.a. software suite b. workgroup information system softwarec. enterprise resource planning software d. cloud computing

Q: One of the disadvantages of proprietary software is that:a. it is hard to control results even if one is involved in the development of software. b. it is difficult to achieve what is required in terms of features andreports.c. it does not allow modification of features that one might need tocounteract an initiative bycompetitors. d. it can take a long time and significant resources to develop the required software features.

Q: One advantage of proprietary software versus off-the-shelf software is that _____.a. the initial cost is lowerb. the software is likely to meet the basic business needs that are common across organizationsc. the software is likely to be of high quality because many customer firms have tested the software and helped identify its bugs d. the software provides a company a competitive advantage by solving problems in a unique manner

Q: Which of the following statements is true of embedded operating systems?a. They represent a small, niche market. b. They are used in a narrow range of applications.c. They are dedicated to the control of another device. d. They mainly determine the functionality of smartphones solely.

Q: _____ is a powerful operating system originally developed by AT&T for use on minicomputers but now runs on workstations, servers, and mainframe computers.a. z/OS b. Unixc. AIX d. Linux

Q: An operating system with _____ capabilities allows a user to runmore than one program concurrently.a. networking b. multitaskingc. memory management d. hardware independence

Q: Operating systems use _____ techniques to increase the amount of processing that can be accomplished in a given amount of time.a. task management b. file managementc. user interface d. networking capability

Q: Programmers use _____ to create application software without understanding the inner workings of an operating system as it provides a software-to-software interface, not an end user interface.a. graphical user interface b. natural user interfacec. command-based user interface d. application program interface

Q: A _____ displays icons and menus that people use to send commands to a computer system.a. command-based userinterface b. graphical user interfacec. natural userinterface d. multitouchinterface

Q: ______ is a Web-delivered software application that combines hardware resources of the Web server and PC to deliver valuable software services through a Web browser interface.a. Cloud computing b. Grid computingc. Rich Internet application d. User application

Q: _____ is concerned with the efficient and environmentallyresponsible design, manufacture, operation, and disposal of IS-related products,including all types of computers, printers, and printer materials such ascartridges and toner.a. Recyclable computing b. Sustainable computingc. Renewable computing d. Green computing

Q: _____ are the most powerful computers with the fastest processing speed and highest performance.a. Blade servers b. Workstationsc. Mainframe computers d. Supercomputers

Q: A _____ is a single user, nonportable computer designed to perform engineering, computer-assisted design(CAD), and heavymathematical computing.a. workstation b. netbookc. register d. notebook

Q: A _____ contains an embedded chip that only needs to be held close to a terminal to transfer its data; no PIN number needs to be entered.a. smart card b. chip-and-PIN cardc. contactless payment card d. magnetic stripe card

Q: Which of the followingtypes of flat-panel displaysuses electricity to excite gas atoms to light up appropriate phosphors on the screen to emit light and color?a. Quantum b. Plasmac. Light-emittingdiode (LED) d. Liquid crystaldisplay (LCD)

Q: _____ is a technology that employs a microchip with an antenna to broadcast its unique identifier and location to receivers.a. Point-of-sale device b. Motion-sensing input devicec. Magnetic Ink Character Recognition d. Radio frequency identification

Q: _____ are used instandardized tests, including the SAT and GMAT tests, and to record votes inelections.a. Magnetic Ink Character Recognition (MICR) devices b. Optical character recognition (OCR) systemsc. Optical markrecognition (OMR) systems d. Speech recognition devices

Q: The Holographic Versatile Disc (HVD) is an advanced _____ technologystill in the development stage andis the same size and shape as a regular digital video disc (DVD) butcan hold 1 terabyte (or more) of information.a. virtual tape b. magnetic discc. fiber optics d. optical disc

Q: _____ is a storage technology for less frequently needed data so that itappears to be stored entirely on tape cartridges, although some parts may be stored on faster hard disks.a. Virtual tape b. Compact discc. Magnetic tape d. Cache memory