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entify the choice that best completes the statement or answers the question.;With a(n) ____, users create a computerized database, add, change, and delete data in the database, sort and retrieve data from the database, and create forms and reports from the data in the database.;a.;DBMS;c.;QBE;b.;RMS;d.;XML;is a computer phrase that points out the accuracy of a computer?s output depends on the accuracy of its input.;a.;Nothing ventured, nothing gained (NVNG);b.;Bad data, bad info (BDBI);c.;Garbage in, garbage out (GIGO);d.;What you see is what you get (WYSIWYG);Accurate information ____.;a.;is error free;b.;has meaning to the person who receives it;c.;is available when a decision maker needs it;d.;has an age suited to its use;Verifiable information ____.;a.;gives more value than it costs to produce;b.;is arranged to suit the needs and requirements of a decision maker;c.;has meaning to the person who receives it;d.;can be proven as correct or incorrect;A ____ is the smallest unit of data a computer can process.;a.;bit;c.;field;b.;character;d.;record;In the ASCII coding scheme, each byte represents a single ____, which can be a number, letter, punctuation mark, or other symbol.;a.;unit;c.;index;b.;character;d.;bit;In a database, the data ____ specifies the kind of data a field can contain and how the field is used.;a.;model;c.;type;b.;mode;d.;variant;is a common data type that includes letters, numbers, or special characters.;a.;Alpha;c.;Metric;b.;Character;d.;Text;In a database, a(n) ____ is a group of related fields.;a.;table;c.;record;b.;key;d.;primary field;In a database, a(n) ____ field is a field that uniquely identifies each record in a file.;a.;main;c.;master;b.;identifying;d.;primary key;File maintenance includes which of the following;a.;adding records;c.;deleting records;b.;modifying records;d.;all of the above;Many database programs perform which of the following in order to analyze entered data to help ensure that it is correct?;a.;information confirmation;c.;validity check;b.;integration;d.;integrity valuation;Which of the following kind of checks is a validity check performed on data, like that in the accompanying figure, which ensures users enter only alphabetic data into a field?;a.;alphabetic;c.;range;b.;numeric;d.;consistency;Which of the following kind of checks is a validity check on data like that in the accompanying figure, which determines whether a number is within a specified group of numbers?;a.;group;c.;range;b.;numeric;d.;integer;A(n) ____ tests the data in two or more associated fields to ensure that the relationship is logical.;a.;range check;c.;consistency check;b.;completeness check;d.;alphabetic/numeric check;A major weakness of a lot of file processing systems is that ____.;a.;they have redundant data and they isolate data;b.;they are much more complex than a database;c.;data is more vulnerable than data in a database;d.;all of the above;When compared with a file processing system, a database offers all of the following except ____.;a.;reduced data redundancy;b.;easier access and shared data;c.;reduced development time;d.;less required memory, storage, and processing power;A DBMS uses which of the following to perform validation checks?;a.;data server;c.;data warehouse;b.;data mart;d.;data dictionary;Which of the following is a request for specific data from a database?;a.;query;c.;ask;b.;index;d.;inquiry;Many organizations adopt the _______________, where users? access privileges are limited to the lowest level necessary to perform required tasks.;a.;access privilage plan;c.;principle of least privilege policy;b.;principle of highest privilege policy;d.;user access plan;Which of the following is true in a relational database?;a.;Each row and each column has a primary key.;b.;Each row has a unique name and each column has a primary key.;c.;Each row has a primary key and each column has a unique name.


Paper#71007 | Written in 18-Jul-2015

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