A mainframe computer provides the computing and storage capacityto meet massive data processing requirements.

You are watching: Which of the following statements is not true about a mainframe computer?

A mainframe computer offers users high performance and excellentsystem availability.

A wide range of application software has been developed to runin the mainframe environment.

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Question 22 (1 point)

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A(n) _____ is a field or set of fields in a record that uniquelyidentifies the record.

Question 22 options:

attribute

entity

primary key

data item

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Question 23 (1 point)

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The operating system converts a basic user request into the setof detailed instructions that the computer hardware requires, thusacting as an intermediary between the application and thehardware.

Question 23 options:

True
False

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Question 24 (1 point)

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A _____ is a subset of a data warehouse that is used bysmall- and medium-sized businesses and departments withinlarge companies to support decision making.

Question 24 options:

data dictionary

data model

data mart

data mine

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Question 25 (1 point)

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As long as the tables in a relational database share one common_____, the tables can be linked to provide useful information andreports.

Question 25 options:

primary key

file

foreign key

data attribute

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Question 26 (1 point)

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One of the advantages of off-the-shelf software is that:

Question 26 options:

an organization does not have to pay for features thatare not required and never used.

​the software always matches current work processes

and data standards.

the initial cost is lower because the software firm can spreadthe development costs over many customers.

the software contains important features, thus

eliminating the need for future modification

and customization.

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Question 27 (1 point)

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An operating system with _____ capabilities allows a user torun more than one program to concurrently.

Question 27 options:

networking

hardware independence

memory management

multitasking

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Question 28 (1 point)

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A collection of fields all related to a single object, activity,or individual is a(n) _____.

See more: Enter The Gungeon The Altar Is Empty, Altar Is Empty

Question 28 options:

record

file

attribute

character

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Question 29 (1 point)

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3G wireless communications supports wireless voice and broadbandspeed data communications in a mobile environment at speeds of 2 to4 Mbps.

Question 29 options:

True
False

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Question 30 (1 point)

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_____ is a 4G alternative based on a set of IEEE 802.16 wirelessmetropolitan area network standards that support various types ofcommunications access.

Question 30 options:

Long Term Evolution (LTE)

Ultra wideband (UWB)

Near Field Communication (NFC)

Worldwide Interoperability for Microwave Access (WiMAX)


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