Software Design and Development Quick Quiz 3

• Sequence, Multiway selection

• Sequence, Binary Selection

• Sequence, Pre-test loop

• Sequence, Post-test loop

Which of the following contains the three components of a CPU?

• HT, CU, Instruction Register

• HDD, RAM, Cache

• ALU, CU, Cache

• ALU, CU, Program Counter

What is the correct representation of the decimal number 45 in binary?

• 101001

• 101101

• 101111

• 110011

The decimal ASCII code for “A” is 65. What is the decimal ASCII code for “f”?

• 70

• 96

• 101

• 102

BEGIN

A = 4

INPUT B

WHILE B <> 999

IF B >= 10 THEN

A = A + B

PRINT A

END IF

INPUT B

END WHILE

END

The following test data is available to the algorithm: 1, 10, 15, 8, 999, 10.

What is the output of the algorithm?

• 29

• 14, 29

• 5, 15, 30

• 14, 29, 1028, 1038

A program is designed to calculate the average of 30 numbers. Which of the following is an example of a logic error for this program?

• When the program runs it gives a “division by zero” error and crashes

• The programmer spells the word “WHILE” incorrectly while typing code

• The program ignores the last number and only calculates the average of 29 numbers

• The numbers are stored in an array and the program tires to read the 31^st number and crashes

Consider the following fragment of code:

A = A + B

B = A – B

A = A – B

Assuming A and B are integers, what is the effect of executing this sequence of statements?

• Both variables are set to the initial contents of A

• Both variables are set to the initial contents of B

• The contents of A is swapped with the contents of B

• Both variables are set to the initial difference between A and B

What is the name of system documentation which shows user interface designs and navigation links between screens?

• Dataflow diagram

• IPO table

• Storyboard

• Screen designs

Consider the following array values:

myArray(0) = -1

myArray(1) = 4

myArray(2) = 0

myArray(3) = 1

What is the final value of

myArray(myArray(myArray(1) + myArray(myArray(2))))

• -1

• 4

• 0

• 1

What form of documentation/diagram is the most appropriate for showing the schedule and timelines for activity in a project?

• Gantt chart

• Storyboard

• Data flow diagram

• System flowchart