CODING (!!) - Paper 2

Question 1

stages of the program development life cycle

Answer 1

analysis, design, coding and testing

Question 2

analysis

Answer 2

abstraction, decomposition of the problem, identification of the problem and requirements

Question 3

design

Answer 3

structure diagrams, flowcharts, pseudocode

Question 4

coding

Answer 4

writing program code and iterative testing

Question 5

testing

Answer 5

testing program code with the use of test data

Question 6

standard methods of solution

Answer 6

– linear search
– bubble sort
– totalling
– counting
– finding maximum, minimum and average values

Question 7

Answer 7

flow line - arrow representing control passing between shapes

Question 8

Answer 8

process - something being performed or done

Question 9

Answer 9

subroutine - relate to separate flowchart

Question 10

Answer 10

input/output

Question 11

Answer 11

decision (true or false/yes or no) resulting in two lines

Question 12

Answer 12

terminator - start/stop

Question 13

test data types

Answer 13

– normal
– abnormal
– extreme
– boundary

Question 14

Normal data

Answer 14

Data that is within an accepted range

Question 15

Boundary data

Answer 15

A pair of values indicating the upper and lower bounds that should be accepted and a pair of values that should be rejected.

Question 16

Extreme data

Answer 16

Data at the upper and lower bounds of the accepted range.

Question 17

methods to design and construct a solution to a problem

Answer 17

– structure diagrams
– flowcharts
– pseudocode

Question 18

Abnormal data

Answer 18

Any data that is not accepted, either outside the accepted range or the incorrect data type.

Question 19

types of validation check

Answer 19

– range check
– length check
– type check
– presence check
– format check
– check digit

Question 20

presence check

Answer 20

check missing data in field (mandatory primary key)

Question 21

range check

Answer 21

check if data is within range (days of week from 1 to 7)

Question 22

length check

Answer 22

check if length is met (password minimum of 8 digits)

Question 23

format check

Answer 23

check if data is in desired format (month/day or day/month)

Question 24

consistency check

Answer 24

check if data is consistent with previous entries (date of expiration cant be before manufacture)

Question 25

type check

Answer 25

check data type (phone number cant have letters)

Question 26

types of verification check

Answer 26

– visual check
– double entry check

Question 27

Visual check

Answer 27

user manually verifies the data they have input against the original source of the same data

Question 28

Double entry check

Answer 28

automated verification check where the system asks you to re-type or input the same data twice

Question 29

integer

Answer 29

only whole number

Question 30

real

Answer 30

any number (decimals included)

Question 31

char

Answer 31

a single character from the keyboard

Question 32

string

Answer 32

multiple characters from the keyboard

Question 33

Boolean

Answer 33

only one of two possible values

Question 34

linear search

Answer 34

algorithm used by computers where an array is searched sequentially, one element after another, until the searched value’s presence or absence is confirmed. So the algorithm stops when it meets one of these conditions:

the value is found
the end of the array is reached without having found the value.

Question 35

bubble sorting

Answer 35

process of ordering elements in a list

sort where the smallest values in a list rise to the top, like bubbles in a glass of water. A bubble sort is a sorting algorithm used to sort a data array sequentially, from smallest to largest or largest to smallest.

Question 36

MOD

Answer 36

returns remainder (9/2 = 1)

Question 37

DIV

Answer 37

divides ignoring remainder (17/5 = 3)