Deck 9: Introduction to Arrays

Question 1

What is the value of LIST(4)after the instructions corresponding to the following pseudocode are executed?
$\operatorname { POS } = 1$
DOWHILE POS $< 10$
$\operatorname { LIST } ( \mathrm { POS } ) = \mathrm { POS } + 3$
$\operatorname { POS } = \mathrm { POS } + 2$
ENDDO

A)4
B)6
C)7
D)undefined

Answer 1

undefined

Question 2

A single-level table is the same as a one-dimensional array.

Answer 2

True

Question 3

A dimension statement is used to define the

A)array name
B)minimum size of the array
C)maximum size of the array
D)both a and c

Answer 3

D

Question 4

What is the value of GRID(3,3)after the instructions corresponding to the following pseudocode are executed?
R = 1
DOWHILE $\mathrm { R } < 5$
C = 2
DOWHILE $\mathrm { C } < 5$
GRID R , C = R + C \\
C = C + 1
ENDDO
R = R + 2
ENDDO

A)5
B)6
C)7
D)none of the above

Question 5

Using the term SCORE(I),which item below represents the array name?

A)SCORE
B)SCORE(I)
C)I
D)both a and b

Question 6

The DIM statement defines the maximum size of an array and is executed at the beginning of the program.

Question 7

A subscript can have more than one value at a time.

Question 8

DAY is a seven-member one-dimensional array.Its contents are shown as follows:
$$\begin{array}{l}\begin{array} { | l | } \hline\text { Surday }\\\hline \text { Monday } \\\hline \text { Tuesday } \\\hline \text { Wedrasday } \\\hline \text { Thursday } \\\hline \text { Friday } \\\hline \text { Saturday } \\\hline\end{array}\end{array}$$
What is the subscripted variable name that should be used to refer to the location containing Tuesday?

A)3
B)DAY(3)
C)DAY
D)both a and b

Question 9

DAY is a seven-member one-dimensional array.Its contents are shown as follows:
$$\begin{array}{l}\begin{array} { | l | } \hline\text { Surday }\\\hline \text { Monday } \\\hline \text { Tuesday } \\\hline \text { Wedrasday } \\\hline \text { Thursday } \\\hline \text { Friday } \\\hline \text { Saturday } \\\hline\end{array}\end{array}$$
Which item below can be used to refer to the location containing "Friday"?

A)6
B)DAY(6)
C)DAY
D)both a and b

Question 10

DAY is a seven-member one-dimensional array.Its contents are shown as follows:
$$\begin{array}{l}\begin{array} { | l | } \hline\text { Surday }\\\hline \text { Monday } \\\hline \text { Tuesday } \\\hline \text { Wedrasday } \\\hline \text { Thursday } \\\hline \text { Friday } \\\hline \text { Saturday } \\\hline\end{array}\end{array}$$
What is the content of DAY(7)?

A)7
B)"Saturday"
C)"Sunday"
D)none of the above

Question 11

Select the subscripted variable name that should be used to refer to the Mth position of the array named N.

A)N(M)
B)M(N)
C)M
D)N

Question 12

What is the value of POS after the instructions corresponding to the following pseudocode are executed?
$\operatorname { POS } = 1$
DOWHILE POS $< 10$
$\operatorname { LIST } ( \mathrm { POS } ) = \operatorname { POS } + 3$
$\mathrm { POS } = \mathrm { POS } + 2$
ENDDO

A)9
B)10
C)11
D)12

Question 13

What is the value of LIST(5)after the instructions corresponding to the following pseudocode are executed?
$\mathrm { POS } = 1$
DOWHILE POS $< 10$
$\operatorname { LIST } ( \mathrm { POS } ) = \operatorname { POS } + 3$
$\mathrm { POS } = \mathrm { POS } + 2$
ENDDO

A)5
B)7
C)8
D)undefined

Question 14

Using the term SCORE(I),which reference below represents the subscript?

A)SCORE
B)SCORE(I)
C)I
D)both b and c

Question 15

What is the value of GRID(5,4)after the instructions corresponding to the following pseudocode are executed?
R = 1
DOWHILE $\mathrm { R } < 5$
C = 2
DOWHILE $\mathrm { C } < 5$
GRID R , C = R + C \\
C = C + 1
ENDDO
R = R + 2
ENDDO

A)7
B)8
C)9
D)undefined

Question 16

The position of an item in an array is specified using a

A)subscripted variable
B)vector
C)subscript
D)dimension statement

Question 17

An example of a simple variable is POS.

Question 18

A matrix is an example of a one-dimensional array.

Question 19

What is the value of GRID(3,1)after the instructions corresponding to the following pseudocode are executed?
R = 1
DOWHILE $\mathrm { R } < 5$
C = 2
DOWHILE $\mathrm { C } < 5$
GRID R , C = R + C \\
C = C + 1
ENDDO
R = R + 2
ENDDO

A)4
B)5
C)6
D)undefined

Question 20

Using the term SCORE(I),which of the following items represents the subscripted variable name?

A)SCORE
B)SCORE(I)
C)I
D)both a and b

Question 21

In row-major order,the first subscript varies the most rapidly.

Question 22

Tables are not widely used in problem solving.

Question 23

Nested loops are often used in algorithms that process multi-dimensional arrays.

Question 24

In row-processing logic,all members of the first row of an array are accessed first.

Question 25

Most programming languages store and process data groups in column-major order.

Question 26

The Rth value in the one-dimensional array GRADE is referred to by GRADE(R).

Question 27

Given the term GRID(ROW,COLUMN),GRID is the array name.

Question 28

A variable name can be used as both a subscript and a counter in the same program.

Question 29

The number of elements in a two-dimensional array can be computed by adding the number of rows and the number of columns.

Question 30

Given the term MONTH(I),I is the subscripted variable name.