$13.$ An order table links to the customer table through the customer

number field, which is common to both. What is the relation between

the order and customer tables?

$($a$)$ one$-$to$-$one

$($b$)$ many$-$to$-$many

$($c$)$ one$-$to$-$many

$($d$)$ many$-$to$-$one

$14.$ Which one of the following is the most secure password?

$($a$)$ privilege

$($b$)$ SiyaBonga

$($c$)$ JaBuLanI

$($d$)$ V$5$Gbd$1$j$2$C

$15.$ What is the most suitable medium for backing up data in a business

environment?

$($a$)$ floppy disk

$($b$)$ CD$-$ROM

$($c$)$ magnetic tape

$($d$)$ hard disk

$16.$ A network of $25$ computers uses mainly the Internet. What is the most

likely network protocol?

$($a$)$ NetBUI

$($b$)$ TCP$/$IP

$($c$)$ IPX$/$SPX

$($d$)$ Novell $4\mathrm{.}11$

$17.$ Which of the following refers to unauthorised access to a computer

system?

$($a$)$ data diddling

$($b$)$ polony splicing

$($c$)$ data fiddling

$($d$)$ hacking

$18.$ What does a range constraint define?

$($a$)$ the field type

$($b$)$ the possible value of a field

$($c$)$ part of a record

$($d$)$ the property of an entity

$19.$ Which one of the following best describes a network of computers in

the same building?

$($a$)$ LAN

$($b$)$ MAN

$($c$)$ CAN

$($d$)$ WAN

$20.$ Which one of the following is an example of volatile memory?

$($a$)$ ROM

$($b$)$ RAM

$($c$)$ hard disk

$($d$)$ magnetic tape

$21.$ SAP is an example of what kind of software?

$($a$)$ utility

$($b$)$ enterprise

$($c$)$ system

$($d$)$ batch

$22.$ Which coding language is used to create web pages?

$($a$)$ SQL

$($b$)$ HTML

$($c$)$ FTP

$($d$)$ HTTP

$23.$ Which one of the following tracks when and where a change was

made to a database?

$($a$)$ a date stamp

$($b$)$ a user view

$($c$)$ an audit trail

$($d$)$ an access right

$24.$ Which database model is the standard for desktop systems?

$($a$)$ flat

$($b$)$ network

$($c$)$ hierarchical

$($d$)$ relational

$25.$ Which type of computer is most vulnerable to data theft?

$($a$)$ PDA

$($b$)$ PC

$($c$)$ mainframe

$($d$)$ supercomputer