Computer Networks Coursework

CEN 4072/6070 Prerequisite Knowledge Self-Assessment

Pre-Test

Q1: (20 pts.) There are two parts to this question. Part "a" concerns whether

or not you have taken a survey course in software engineering in the past.

Part "b" concerns whether or not you have "equivalent" professional

experience.

a. Have you successfully completed an undergraduate upper-division or

graduate-level software engineering survey course (such as CEN 3031/

5035)? Circle one:

YES NO

If you circled "YES" above, and wish to discuss the results of your self-

assessment with the instructor, please also provide the following

information:

Course title and level:

Year taken:

Textbook used:

University/College:

Grade earned:

b. Do you have practical/professional experience in any aspect of

software engineering? Circle one:

YES NO

If you circled "YES" above, and wish to discuss the results of your self-

assessment with the instructor, please briefly describe the nature and

scope of this experience.

Q2: (10 pts.) Briefly define the following object-oriented programming

terms/concepts in the space provided.

a. objects

b. object attributes

c. methods (or operations)

d. object classes

e. inheritance

Q3: (14 pts.) Complete the "truth table" for the logical expressions involving

propositions A and B below. (Note: "T" = true; "F" = false; "∧" = "and";

"∨" = "or"; "=>" = "implies"; "<=>" = "if and only if".)

A B (A ∧ B) (A ∨ B) (A => B) (A <=> B)

==============================================

T T T

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T F F

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F T

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F F

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Q4: (34 pts.) Consider the following "pseudocode" programs. Suppose X, Y, TEMP,

and N are integer variables with initial values X0, Y0, TEMP0, and N0.

Describe what each program "does" (i.e., what its "function" is) in words

and give the final values of the variables it references in terms of their

initial values. (For example, the final value of variable TEMP for program

"a" would be Y0.)

a. (4 pts.) TEMP := Y

Y := X

X := TEMP

b. (4 pts.) if X<0 then

Y := -X

else

Y := X

end_if_then_else

c. (4 pts.) Y := X

if X<0 then

Y := -Y

end_if_then

d. (10 pts.) while X<N do (Hint: consider two cases -- when X0<N0 and when

Y := Y+1 X0>=N0)

X := X+1

end_while

e. (12 pts.) repeat (Hint: Under what circumstances will this program

Y := Y+2 halt? If the program does halt, what will the

X := X+1 final values of X,Y, and N be in terms of X0,Y0,

until X=N+1 and N0?)

Pre-Test Answers and Self-Assessment Rubric

Q1: