C++ Final Exam

Front 1

The advantage of a linear search is its __________.

a) complexity

b) efficiency

c) simplicity

d) speed

Back 1

c) simplicity

Front 2

A(n) ________ search is more efficient than a(n) ________ search.

a) character, string

b) integer, double

c) binary, linear

d) linear, binary

Back 2

c) binary, linear

Front 3

A binary search begins with the _________ element of an array.

a) first

b) last

c) largest

d) middle

Back 3

d) middle

Front 4

The bubble sort is an easy way to arrange data into ascending order, but it cannot arrange data into descending order.

a) True

b) False

Back 4

b) False

Front 5

Before you can perform a selection sort, the data must be stored in ascending order.

a) True

b) False

Back 5

b) False

Front 6

The number of comparisons made by a binary search is expressed in powers of two.

a) True

b) False

Back 6

a) True

Front 7

The _________ sort usually performs fewer exchanges than the ________ sort.

a) bubble, selection

b) binary, linear

c) selection, bubble

d) ANSI, ASCII

Back 7

c) selection, bubble

Front 8

A(n) ________ search uses a loop to sequentially step through an array.

a) binary

b) unary

c) linear

d) relative

Back 8

c) linear

Front 9

When an array is sorted from highest to lowest, it is said to be in _____ order.

a) reverse

b) forward

c) ascending

d) descending

Back 9

d) descending

Front 10

Using a binary search, you are more likely to find an item than if you use a linear search.

a) True

b) False

Back 10

b) False

Front 11

Each byte of memory is assigned a unique address.

True

False

Back 11

True

Front 12

The * operator is used to get the address of a variable.

True

False

Back 12

False

Front 13

The pointer variable are designed to hold addresses.

True

False

Back 13

True

Front 14

The & symbol is called the indirection operator. True

False

Back 14

False

Front 15

The & operator derefences a pointer.

True

False

Back 15

False

Front 16

When the indirection operator is used with a pointer variable, you are actually working with the value the pointer is pointing to.

True

False

Back 16

True

Front 17

Array names cannot be deferenced with the indirection operator.

True

False

Back 17

False

Front 18

When you add a value to a pointer, you are actually adding that number times the size of the data type referenced by the pointer.

True

False

Back 18

True

Front 19

The address operator is not needed when assigning an array's address to a pointer.

True

False

Back 19

True

Front 20

You cannot change the address that an array name points to.

True

False

Back 20

True

Front 21

There is no difference between "847" and 847. True

False

Back 21

False

Front 22

The strcpy function performs no bounds checking on the first argument.

True

False

Back 22

True

Front 23

The strcpy function will overwrite the contents of its first string argument.

True

False

Back 23

True

Front 24

The strcat function checks to make sure the first string is large enough to hold both strings before performing the concatenation.

True

False

Back 24

False

Front 25

String handling functions accept as arguments pointers to strings (array names or pointer variables), or literal strings.

True

False

Back 25

True

Front 26

If the starting address of a string is passed into a pointer parameter, it can be assumed that all the characters, from that address up to the byte that holds the null terminator, are part of the string.

True

False

Back 26

True

Front 27

The strlen function returns the size of the array containing a string.

True

False

Back 27

False

Front 28

If tolowers argument is already lowercase, it will be inadvertently converted to uppercase.

True

False

Back 28

False

Front 29

If toupper's argument is already uppercase, it is returned as is, with no changes.

True

False

Back 29

True

Front 30

Character testing functions, such as isupper, accept strings as arguments and test each character in the string.

True

False

Back 30

False

Front 31

Before a structure variable can be created, the structure must be ____________.

Back 31

Declared

Front 32

The _________ is the name of the structure type.

Back 32

tag

Front 33

The variables declared inside a structure declaration are called ____________.

Back 33

members

Front 34

A(n) _______ is required after the closing brace of a structure declaration.

Back 34

semicolon

Front 35

in the definition of a structure variable, the __________ is placed before the variable name, just like the data type of a regular variable is placed before its name.

Back 35

tag

Front 36

When a structure is passed _________to a function, its members are not copied.

a) by reference

b) by value

c) None of these

Back 36

a) by reference

Front 37

Data types that are created by the programmer are known as:

a) variables

b) abstract data types

c) functions

d) parameters

Back 37

b) abstract data types

Front 38

A structure _____________ contain members of the same data type.

a) cannot

b) can

c) shouldn't

d) None of these

Back 38

b) can

Front 39

A declaration for an enumerated type begins with this key word.

a) enumerated

b) enum_type

c) enum

d) ENUM

Back 39

c) enum

Front 40

Look at the following declaration. enum Tree { OAK, MAPLE, PINE };In memory, what value will the MAPLE enumerator be stored as?

a) "MAPLE"

b) 2

c) 'M'

d) 1

Back 40

d) 1

Front 41

When you store data in a variable, it is automatically saved in a file.

True

False

Back 41

False

Front 42

The ios::out flag causes the file's existing contents to be deleted if the file already exists.

True

False

Back 42

True

Front 43

File output may be formatted the same way as console screen output.

True

False

Back 43

True

Front 44

When data is read from a file, it is automatically stored in a variable.

True

False

Back 44

False

Front 45

When passing a file stream object to a function, you should always pass it by reference.

True

False

Back 45

True

Front 46

This data type can be used to create files and write information to them but cannot be used to read information from them.

a) ofstream

b) ifstream

c) afstream

d) outstream

Back 46

a) ofstream

Front 47

What is true about the following statement?out.open("values.dat", ios::app);

a) If the file already exists, its contents are preserved and all output is written to the end of the file.

b) If the file exists, it should be replaced with a new copy of values.dat

c) If the file exists, it can be opened but not modified

d) None of these.

Back 47

a) If the file already exists, its contents are preserved and all output is written to the end of the file.

Front 48

Which of the following statements opens the file info.txt for both input and output? a) dataFile.open("info.txt", ios::in && ios::out); b) dataFile.open("info.txt", ios::in , ios::out); c) dataFile.open("info.txt", input || output);d) dataFile.open("info.txt", ios::in | ios::out);

Back 48

d) dataFile.open("info.txt", ios::in | ios::out);

Front 49

Outside of a C++ program, a file is identified by its _________. Inside a C++ program, a file is identified by a ____________.

a) file number, file name

b) file name, file number

c) name, address

d) name, file stream object

Back 49

d) name, file stream object

Front 50

Closing a file causes any unsaved information still held in the file buffer to be

a) saved to the file

b) deleted

c) retained in the buffer for safekeeping.

d) duplicated

Back 50

a) saved to the file

Front 51

Private members must be declared before public members.

True

False

Back 51

False

Front 52

Class members are private by default.

True

False

Back 52

True

Front 53

Members of a struct are private by default.

True

False

Back 53

False

Front 54

Classes and structures in C++ are very similar.True

False

Back 54

True

Front 55

All private members of a class must be declared together.

True

False

Back 55

False

Front 56

All public members of a class must be declared together.

True

False

Back 56

False

Front 57

It is legal to define a pointer to a class object.True

False

Back 57

True

Front 58

You can use the new operator to dynamically allocate an instance of a class.

True

False

Back 58

True

Front 59

A private member function may be called from a statement outside the class, as long as the statement is in the same program as the class declaration.

True

False

Back 59

False

Front 60

Constructors do not have to have the same name as the class.

True

False

Back 60

False

Front 61

Objects are created from abstract data types that encapsulate _______ and _______ together. a) numbers, characters

b) data, functions

c) addresses, pointers

d) integers, floats

Back 61

b) data, functions

Front 62

In OOP terminology, an object's member variables are often called its _________, and its member functions are sometimes referred to as its behaviors, or ____________.

a) values, morals

b) data, activities

c) attributes, activities

d) attributes, methods

Back 62

d) attributes, methods

Front 63

Examples of access specifiers are the keywords: a) near and far

b) opened and closed

c) private and public

d) table and row

Back 63

c) private and public

Front 64

Class declarations are usually stored here.

a) On separate disk volumes

b) In their own header files

c) In .cpp files, along with function definitions d) Under pseudonyms

Back 64

b) In their own header files

Front 65

A ___________ is a member function that is automatically called when a class object is ___________.

a) destructor, created

b) constructor, created

c) static function, deallocated

d) utility function, declared

Back 65

b) constructor, created

Front 66

When a constructor function accepts no arguments, or does not have to accept arguments because of default arguments, it is called a(n): a) empty constructor

b) default constructor

c) stand-alone function

d) arbitrator function

Back 66

b) default constructor

Front 67

This type of member function may be called from a statement outside the class.

a) public

b) private

c) undeclared

d) global

Back 67

a) public

Front 68

A class is a(n) _____________ that is defined by the programmer.

a) data type

b) function

c) method

d) attribute

Back 68

a) data type

Front 69

Assuming that Rectangle is a class name, the statement Rectangle *BoxPtr;

a) declares an object of class Rectangle

b) assigns the value of *BoxPtr to the object Rectangle

c) defines a Rectangle pointer variable called BoxPtr

d) is illegal in C++

Back 69

c) defines a Rectangle pointer variable called BoxPtr

Front 70

When you dereference an object pointer, use the

a) -> operator

b) <> operator

c) dot operator

d) & operator

Back 70

a) -> operator