45) A primary key used in a dethae te a b) e) d) 46) Which of the following is a

Question

45) A primary key used in a dethae te a b) e) d) 46) Which of the following is an intermational b) DB2 c) SOL d) MS Access 47) Companies buy and sell your datn so they can a) Market products to you in a targcted b) Know what you are up to on a daily basis ) Make sure you are ethical before selling to you aeck for ethical behavior of employees d) 48) To normalize a database, you need to a) make sure the data is accurate b) ensure each table has only one type of object in it c) ensure that only normal people are in the database d) normalize the computer system the database runs on 49) Which of the following is the distinguishing feature of a LAN as compared to a WAN? a) single location b) number of users c) bandwidth d) hardware requirements 50) A private internet that is used exclusively within an organization is called a(n) a) Ethernet b) intranet c) cloud d) server 51) Which of the following is defined as the elastic (pay for only what you use) leasing of pooled computer resources over the Internet? a) broadband b) wiki c) the cloud d) Bluetooth 52) Which of the following conditions exists when data are isolated in separated information systems? a) information overload b) encapsulation c) information silo d) hacking breaches

Explanation / Answer

45) Ans. b

A primary key is a special relational database table column which is being used to identify all the table records.

46) Ans. c- SQL

SQL (structured query language) is an international standard language which is being used for processing a database.

47) Ans. a)

Companies buy and sell the data so that they can market the product in a targeted way.

48) Ans. b)

In order to normalize a database, it is needed to be ensure that each table has only one type of object in it.

49) Ans. a)

LAN can reside at one location only whereas WAN at different locations.

50) Ans. b)

“Intranet” is a private internet that is being used exclusively within the organisation.

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