Question 1

Which control structure is controlled by precedence and associativity?

Accepted Answer

Within expressions

Answer

Function calls

Answer

Among program units

Answer

Selection statements

Question 2

What are the three levels of control flow mentioned in the course packet?

Accepted Answer

Within expressions, among program units, and program statements

Answer

Branching, selection, and iteration

Answer

Function calls, if statements, and loops

Answer

Among expressions, function calls, and loops

Question 3

It is defined as a control statement plus statements whose execution it controls?

Accepted Answer

Control structure

Answer

Looping

Answer

Function calls

Answer

Conditional statements

Question 4

In the context of selection statements, what does the 'else' clause represent?

Accepted Answer

The statement executed when the control expression is false

Answer

The statement executed when the control expression is true

Answer

The end of the if statement

Answer

A loop that executes a default action

Question 5

Which of the following design issues relates to two-way selection statements?

Accepted Answer

What is the form and type of the control expression?

Answer

How is iteration controlled?

Answer

What are the type and scope of the loop variable?

Answer

Is execution flow through the structure restricted to a single segment?

Question 6

In FORTRAN, what is the purpose of the 'GOTO' statement in selection statements?

Accepted Answer

To select multiple statements

Answer

To create loops

Answer

To handle errors

Answer

To improve readability

Question 7

What is a key characteristic of the 'switch' statement in C-like languages?

Accepted Answer

It allows for multiple cases to be executed in one pass (fall-through behavior)

Answer

It must have a loop variable

Answer

The control expression must be a string

Answer

It does not support a default case

Question 8

Which of the following is a design choice for the 'switch' statement?

Accepted Answer

Selectable segments can be statement sequences, blocks, or compound statements

Answer

Selectable segments can only be single statements

Answer

The control expression must be a string

Answer

It must have a pre-test condition

Question 9

In Scheme, what form does the 'cond' special form take?

Accepted Answer

(cond (test1 result1) ...  (testn resultn)  (else defaultResult))

Answer

(case expr (valuelist1 result1) ... (else defaultResult))

Answer

switch (expression) {case1: stmt1; ... default: stmt2;}

Answer

if (test) {result} else {defaultResult}

Question 10

Which statement correctly describes counter-controlled loops?

Accepted Answer

They rely on a loop variable with an initial, terminal, and stepsize value

Answer

They must include a control expression that evaluates to a boolean

Answer

They only run a fixed number of times

Answer

They do not allow the loop variable to be modified within the loop body

Question 11

In C's 'for' statement, which expression is evaluated once at the beginning of the loop? ([expr_1] ; [expr_2] ; [expr_3])

Accepted Answer

expr_1

Answer

expr_2

Answer

expr_3

Answer

None of the above

Question 12

Which type of loop control is based on a boolean expression and can be either pre-test or post-test?

Accepted Answer

Logically-controlled loops

Answer

Selection statements

Answer

Counter-controlled loops

Answer

Conditional branches

Question 13

What is the purpose of the 'continue' statement in loops?

Accepted Answer

To skip the remainder of iteration

Answer

To terminate the loop

Answer

To transfer control to a labeled statement

Answer

To evaluate the loop condition again immediately

Question 14

In the context of iteration based on data structures, what is an iterator function?

Accepted Answer

A function that returns the next element in a data structure

Answer

A function that terminates the loop

Answer

A function that skips the current iteration

Answer

A function that initializes the loop variable

Question 15

Which of the following is a design issue for nested loops with user-located loop control mechanisms?

Accepted Answer

Whether control should be transferable out of more than one loop

Answer

How to handle multiple cases within the loop

Answer

Whether the loop variable can be modified within the loop

Answer

The loop must only be controlled by a logical expression

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