21. What of the following 1s not true about the use of RFTD In a business2 a. Ca

Question

21. What of the following 1s not true about the use of RFTD In a business2 a. Can be used to support short range transaction processing b. Used in aupply chain management to increase efficiencies c. Enables direct communicationa with end customers d. Can replace use of bar codes and not require line of sight e. A newer and more costly type of electronic product code. 22. The process of moving data from varsous outslde Information sources into the data warehouse is called: a. online transaction processing. b. extzacting, transforming, and loading c master data management d. uploading. o. online analytical processing 23. can be exercised to solve a problem, whereas may or nay not be able to be exercised to solve a problem a Data, knowLedge b. Information, knowledge c. Data, information d. Knowedge, Information e. Bytes, data 24. In a relational database table, the Foreign key of table is an isportant fieid that identifies one and only one unique record within that entire table a. True b. False 25. In a relational database, every row represents atn) a. primary key b. characteristic of the prinary key c. an attribute filter d. table e. record or single instance of an entity 26. In the relational database model, data in tso related tables can be 3 when they contain the same matched data in their respective a. entities b. files c. primary and foreign key field contents d. primary keys in both tables. e. roOwS is a logical grouping of several related fields stored together in 27. A(n) a database table, and it describes one specific instance of the entity of interest a. Field b. Record c. Table or File d. Data mart e. Byte 28. Imagine a table in a relational database that contains a Us Social Security Number. Making sure that field must contain nuneric data is an exarple of a. Data typing in order to maintain data integrity b. Data redundancy. c. Data extract, transform and load d. Application and Data inter-dependence.

Explanation / Answer

The answers are as follows:

21) e) A newer and more costly type of electronic product code.

Explanation: Rfid is cheaper than bar codes.

22) e) Online analytical processing.

23) c) Data, information

24) False

Explanation: Its not foreign key, its primary key that identifies one and only one unique record

25) e) record or single instance of an entity

26) c) primary and foreign key field contents

27) b) Record

28) a) Data typing in order to maintain data integrity

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