C++ for Engineers and Scientists 4e Gary J Bronson - Test Bank

C++ for Engineers and Scientists 4e Gary J Bronson – Test Bank

 

Instant Download – Complete Test Bank With Answers

 

 

Sample Questions Are Posted Below

 

Chapter 5: Repetition Statements

 

TRUE/FALSE

 

1. Loop structures can evaluate the condition only at the beginning of the repeating section of code.

 

ANS:  F                    PTS:   1                    REF:   236

 

2. The do while construct is an example of a posttest loop.

 

ANS:  T                    PTS:   1                    REF:   236

 

3. C++’s for statement is virtually interchangeable with its while statement.

 

ANS:  T                    PTS:   1                    REF:   263

 

4. Combining interactive data entry with the repetition capabilities of the while statement produces adaptable and powerful programs.

 

ANS:  T                    PTS:   1                    REF:   250

 

5. As a general rule, the continue statement is less useful than the break statement.

 

ANS:  T                    PTS:   1                    REF:   258

 

6. The for statement performs the same functions as the while statement, but uses a different form.

 

ANS:  T                    PTS:   1                    REF:   263

 

7. The construction for ( ; count <= 20 ; ) is invalid.

 

ANS:  F                    PTS:   1                    REF:   265

 

8. In C++, continue produces the same action for both while and for statements.

 

ANS:  F                    PTS:   1                    REF:   267

 

9. Entering data interactively in a loop is a general technique that’s applicable to for loops.

 

ANS:  T                    PTS:   1                    REF:   275

 

10. The do statement is particularly useful in filtering user-entered input and providing data validation checks.

 

ANS:  T                    PTS:   1                    REF:   294

 

MULTIPLE CHOICE

 

1. A(n) ____ statement both defines the boundaries containing the repeating section of code and controls whether the code will be executed.

a.	declaration	c.	arithmetic
b.	selection	d.	repetition

 

 

ANS:  D                    PTS:   1                    REF:   236

 

2. Three different forms of repetition statements are provided in C++: while, ____, and do while.

a.	for	c.	switch
b.	if-else	d.	if-else chain

 

 

ANS:  A                    PTS:   1                    REF:   236

 

3. In a(n) ____ loop, the condition is tested before any statements in the loop are executed.

a.	posttest	c.	prior
b.	pretest	d.	early-test

 

 

ANS:  B                    PTS:   1                    REF:   236

 

4. Both the ____ and for loop structures are examples of entrance-controlled loops.

a.	while	c.	do while
b.	switch	d.	if-else

 

 

ANS:  A                    PTS:   1                    REF:   236

 

5. A loop that evaluates a condition at the end of the repeating section of code is referred to as a(n) ____ loop.

a.	entrance-controlled	c.	exit-controlled
b.	pretest	d.	aftertest

 

 

ANS:  C                    PTS:   1                    REF:   236

 

6. ____ loops always execute the loop statements at least once before the condition is tested.

a.	Pretest	c.	entrance-controlled
b.	Posttest	d.	beforetest

 

 

ANS:  B                    PTS:   1                    REF:   236

 

7. In a ____ loop, the condition is used to keep track of how many repetitions have occurred.

a.	pretest	c.	variable-condition
b.	posttest	d.	fixed-count

 

 

ANS:  D                    PTS:   1                    REF:   237

 

8. In C++, a ____ loop is constructed using a while statement.

a.	while	c.	do
b.	whereas	d.	switch

 

 

ANS:  A                    PTS:   1                    REF:   238

 

9. A(n) ____ loop is a loop that never ends.

a.	fixed	c.	infinite
b.	controlled	d.	finite

 

 

ANS:  C                    PTS:   1                    REF:   241

 

10. The line total = total + num is an example of a(n) ____ statement.

a.	initialization	c.	accumulating
b.	declaration	d.	definition

 

 

ANS:  C                    PTS:   1                    REF:   253

 

11. In computer programming, data values used to signal the start or end of a data series are called ____.

a.	sentinels	c.	dummies
b.	marks	d.	interrupts

 

 

ANS:  A                    PTS:   1                    REF:   256

 

12. A(n) ____ statement forces an immediate exit from the switch, while, for and do-while statements.

a.	exit	c.	stop
b.	break	d.	halt

 

 

ANS:  B                    PTS:   1                    REF:   258

 

13. When ____ is encountered in a loop, the next iteration of the loop begins immediately.

a.	goto	c.	resume
b.	go	d.	continue

 

 

ANS:  D                    PTS:   1                    REF:   258

 

14. A semicolon with nothing preceding it is also a valid statement, called the ____ statement.

a.	empty	c.	blank
b.	null	d.	void

 

 

ANS:  B                    PTS:   1                    REF:   259

 

15. Typically, null statements are used with while or ____ statements.

a.	if-else	c.	for
b.	switch	d.	case

 

 

ANS:  C                    PTS:   1                    REF:   259

 

16. In C++, a ____ loop is constructed using a for statement.

a.	for	c.	selection
b.	time	d.	switch

 

 

ANS:  A                    PTS:   1                    REF:   263

 

17. Inside the parentheses of the for statement are three items, separated by ____.

a.	dots	c.	colons
b.	commas	d.	semicolons

 

 

ANS:  D                    PTS:   1                    REF:   263

 

18. A(n) ____ forces control to be passed to the altering list in a for statement.

a.	exit	c.	interrupt
b.	continue	d.	next

 

 

ANS:  B                    PTS:   1                    REF:   267

 

19. In Visual Basic and Pascal, the for statement can be used only to construct ____ loops.

a.	posttest	c.	fixed-count
b.	exit-controlled	d.	variable-condition

 

 

ANS:  C                    PTS:   1                    REF:   271

 

20. A common programming technique is to use a for or ____ loop to cycle through a set of numbers and select numbers meeting one or more criteria.

a.	while	c.	switch
b.	if-else	d.	break

 

 

ANS:  A                    PTS:   1                    REF:   276

 

21. Values used to control a loop can be set by using ____.

a.	variables	c.	conditional statements
b.	constants	d.	either a or b

 

 

ANS:  D                    PTS:   1                    REF:   280

 

22. A loop contained within another loop is called a ____ loop.

a.	compound	c.	complex
b.	composed	d.	nested

 

 

ANS:  D                    PTS:   1                    REF:   288

 

23. Posttest loops can be constructed in C++ using ____ loops.

a.	while	c.	for
b.	do while	d.	if-else chain

 

 

ANS:  B                    PTS:   1                    REF:   292

 

24. In C++, a posttest loop can be created by using a(n) ____ statement.

a.	if	c.	do
b.	case	d.	for

 

 

ANS:  C                    PTS:   1                    REF:   292

 

25. The ____ error means the loop executes either one too many or one too few times than was intended.

a.	miscalculation	c.	less-count
b.	off by one	d.	too-many-few

 

 

ANS:  B                    PTS:   1                    REF:   297

 

COMPLETION

 

1. A(n) _______________ statement defines the boundaries of a repeating section of code and controls whether the code is executed.

 

ANS:  repetition

 

PTS:   1                    REF:   236

 

2. Entrance-controlled loops are also referred to as ____________________ loops.

 

ANS:  pretest

 

PTS:   1                    REF:   236

 

3. In a(n) ____________________-condition loop, the tested condition doesn’t depend on a count being reached; instead, it continues until a specified value is encountered.

 

ANS:  variable

 

PTS:   1                    REF:   238

 

4. C++’s ____________________ statement is virtually interchangeable with its while statement.

 

ANS:  for

 

PTS:   1                    REF:   236

 

5. A(n) ____________________ loop’s test condition evaluates to a non-zero value on every repetition.

 

ANS:  infinite

 

PTS:   1                    REF:   241

 

6. In computer programming, a data value used to signal the start or end of a data series is called a(n) ____________________.

 

ANS:  sentinel

 

PTS:   1                    REF:   256

 

7. The ____________________ statement violates pure structured programming principles because it provides a second, nonstandard exit from a loop.

 

ANS:  break

 

PTS:   1                    REF:   258

 

8. When a(n) ____________________ statement is encountered in a loop, the next iteration of the loop begins immediately.

 

ANS:  continue

 

PTS:   1                    REF:   258

 

9. A(n) ____________________ statement is used where a statement is required syntactically, but no action is called for.

 

ANS:  null

 

PTS:   1                    REF:   259

 

10. Inside the parentheses of the for statement, the ____________________ list provides the increment value that’s added to or subtracted from the counter each time the loop is executed.

 

ANS:  altering

 

PTS:   1                    REF:   263

 

11. In C++, the ____________________ statement can replace or be replaced by an equivalent while or for statement.

 

ANS:  do

 

PTS:   1                    REF:   294

 

12. A do while loop is an example of a(n) ____________________-controlled loop.

 

ANS:  exit

 

PTS:   1                    REF:   292

 

13. The loop created by the statement for (i = 0; i < 59; i++) executes ____________________ times

 

ANS:

59

fifty-nine

fifty nine

 

PTS:   1                    REF:   297

 

14. The semicolon at the end of the statement for (count = 0; count < 10; count++); is called a(n) ____________________ statement.

 

ANS:  null

 

PTS:   1                    REF:   297

 

15. A common programming error is omitting the final ____________________ from the do statement.

 

ANS:

semicolon

;

 

PTS:   1                    REF:   298