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Question
A wide area network (WAN) spans a large geographic area, such as a state, province, or country. WANs often connect multiple smaller networks, such as local area networks or metropolitan area networks. The world's most popular WAN is the Internet. A metropolitan area network (MAN) is a large computer network usually spanning a city.
Answer
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Related questions
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Relationship integrity criteria are rules that enforce basic and fundamental information-based constraints.
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Information integrity are rules that help ensure the quality of information.
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B. determines which things go together
C. segments a heterogeneous population of more homogeneous subgroups
D. assigns records to one of a predefined set of classes
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Information integrity is a measure of the quality of information.
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Which of the following statements is TRUE regarding customer information?
A. Customer information can exist in several operational systems.
B. Customer information in each operational system could change.
C. Customer information in each operational system can be different.
D. All of these are correct.
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A relational database model stores information in the form of logically related two-dimensional tables.
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Which of the following is a problem associated with dirty data?
A. inaccurate data
B. misleading data
C. nonformatted data
D. All of these are correct.
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A DBMS provides details about data.
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Which of the following is a problem associated with dirty data?
A. duplicate data
B. incorrect data
C. violates business rules
D. All of these are correct.
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What are the primary differences between a data warehouse and a data mart?
A. Data warehouses make quick decisions, data marts make slow decisions.
B. Data warehouses tackle ethical issues, data marts tackle hypothetical issues.
C. Data warehouses have a more organization-wide focus, data marts have functional focus.
D. Data warehouses have a physical focus, data marts have logical focus.
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Within the beginning stage of the data warehouse models process, which of the following are included in the internal databases?
A. marketing, sales, inventory, and billing
B. data mart 1, data mart 2, data mart 3
C. competitor and industry information, mailing lists, amp; stock market analysis
D. marketing information, and stock market analysis numbers
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Data models are logical data structures that detail the relationships among data elements by using graphics or pictures.
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A DBMS uses three primary data models for organizing informationthe hierarchical, network, and the relational database.
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What serves only one customer or organization and can be located on or off the customer's premises?
A. community cloud
B. private cloud
C. utility computing
D. public cloud
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Which cloud computing model offers applications on a pay-per-use basis?
A. infrastructure as a service
B. platform as a service
C. software as a service
D. information as a service
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A hot site is a separate and fully equipped facility where the company can move immediately after a disaster and resume business.
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Failback, a specific type of fault tolerance, occurs when a redundant storage server offers an exact replica of the real-time data, and if the primary server crashes, the users are automatically directed to the secondary server or backup server.
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Failover, a specific type of fault tolerance, occurs when a redundant storage server offers an exact replica of the real-time data, and if the primary server crashes, the users are automatically directed to the secondary server or backup server. This is a high-speed and high-cost method of backup and recovery.
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Recovery is the ability to get a system up and running in the event of a system crash or failure that includes restoring the information backup.
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A backup is an exact copy of a systems information.
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Failback occurs when the primary machine recovers and resumes operations, taking over from the secondary server.
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If you want to support the environment, you will focus on building a strong, sustainable MIS infrastructure, which identifies ways that a company can grow in terms of computing resources while simultaneously becoming less dependent on hardware and energy consumption.
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An enterprise architect is a person grounded in technology, fluent in business, and able to provide the important bridge between MIS and the business.
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What combines networks by splitting the available bandwidth into independent channels that can be assigned in real time to a specific device?
A. server virtualization
B. network virtualization
C. disaster recovery as a service
D. storage virtualization
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What enables computers to run multiple operating systems and multiple software applications at the same time and creates multiple "virtual" machines all on a single computing device?
A. virtualization
B. innovation
C. availability
D. viral computing
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What is storage virtualization?
A. combines multiple network storage devices so they appear to be a single storage device
B. combines networks by splitting the available bandwidth into independent channels that can be assigned in real time to a specific device
C. combines the physical resources, such as servers, processors, and operating systems, from the applications
D. offers backup services that use cloud resources to protect applications and data from disruption caused by disaster
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A client is a computer designed to request information from a server.
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What includes the carbon dioxide and carbon monoxide in the atmosphere, produced by business processes and systems?
A. ewaste
B. energy consumption
C. carbon emissions
D. sustainable MIS