Question 1

Which symbol is used to access class members via pointers to class members?

Accepted Answer

A)  -> 
B)  .* 
C)  . 
D)  *. 
A)  -> 
B)  .* 
C)  . 
D)  *. B

Question 2

If a derived class inherits from two base classes that both define a certain member function, then an ambiguity problem will arise when:

Accepted Answer

A)  An object of a base class calls that certain member function. 
B)  An object of the derived class calls that certain member function. 
C)  A pointer of a base class type pointing to an object of the derived class calls that certain member function. 
D)  None of the above. 
A)  An object of a base class calls that certain member function. 
B)  An object of the derived class calls that certain member function. 
C)  A pointer of a base class type pointing to an object of the derived class calls that certain member function. 
D)  None of the above. B

Question 3

The const_cast operator can be used to cast away ___________ or ____________ qualifications.

Accepted Answer

A)  const, volatile. 
B)  The const-ness property, remove. 
C)  Property, const. 
D)  enum, #define. 
A)  const, volatile. 
B)  The const-ness property, remove. 
C)  Property, const. 
D)  enum, #define. A

Question 4

Namespace definitions are different from class definitions because:

Accepted Answer

A)  namespace definitions do not end in semicolons. 
B)  namespace definitions are not delimited by braces {}. 
C)  namespaces cannot contain functions. 
D)  namespaces cannot contain variables. 
A)  namespace definitions do not end in semicolons. 
B)  namespace definitions are not delimited by braces {}. 
C)  namespaces cannot contain functions. 
D)  namespaces cannot contain variables.

Question 5

Which operator corresponds to operator keyword and_eq?

Accepted Answer

A)  && 
B)  != 
C)  & 
D)  &= 
A)  && 
B)  != 
C)  & 
D)  &=

Question 6

Individual namespace members can be accessed without a namespace qualifier:

Accepted Answer

A)  If the using namespace all; directive is included at the beginning of the file. 
B)  At any time. 
C)  Only if the namespace is declared inside of main. 
D)  If the individual member is mentioned in a using namespace::namespacemember declaration. 
A)  If the using namespace all; directive is included at the beginning of the file. 
B)  At any time. 
C)  Only if the namespace is declared inside of main. 
D)  If the individual member is mentioned in a using namespace::namespacemember declaration.

Question 7

Duplicate __________ could result from ___________.

Accepted Answer

A)  subobjects, multiple inheritance. 
B)  superobjects, multiple inheritance. 
C)  superclasses, downcasting a pointer. 
D)  subclasses, upcasting a pointer. 
A)  subobjects, multiple inheritance. 
B)  superobjects, multiple inheritance. 
C)  superclasses, downcasting a pointer. 
D)  subclasses, upcasting a pointer.

Question 8

Assuming that ptr is a pointer to a class data member of class Check and obj is a pointer to a Check object, which of the following statements would be used to output that data member?

Accepted Answer

A)  cout *ptr(); 
D)  cout *ptr; 
A)  cout *ptr(); 
D)  cout *ptr;

Question 9

Which operator keyword corresponds to ^?

Accepted Answer

A)  xor 
B)  xor_eq 
C)  or 
D)  or_eq 
A)  xor 
B)  xor_eq 
C)  or 
D)  or_eq

Question 10

Without the statement __________, all __________ statements must be written as std::cout.

Accepted Answer

A)  using namespace std;, cout 
B)  using std namespace;, cout 
C)  using std::namespace;, cout 
D)  using std;, namespace std::cout 
A)  using namespace std;, cout 
B)  using std namespace;, cout 
C)  using std::namespace;, cout 
D)  using std;, namespace std::cout

Question 11

Which of the following is not true of static local variables?

Accepted Answer

A)  They are accessible outside of the function in which they are defined. 
B)  They retain their values when the function in which they are defined terminates. 
C)  They are initialized to zero if not explicitly initialized by the programmer. 
D)  They can be of type int. 
A)  They are accessible outside of the function in which they are defined. 
B)  They retain their values when the function in which they are defined terminates. 
C)  They are initialized to zero if not explicitly initialized by the programmer. 
D)  They can be of type int.

Question 12

Multiple inheritance means that a derived class inherits the members of several:

Accepted Answer

A)  Derived classes. 
B)  public classes. 
C)  Direct base classes. 
D)  Indirect base classes, but exactly one direct base class. 
A)  Derived classes. 
B)  public classes. 
C)  Direct base classes. 
D)  Indirect base classes, but exactly one direct base class.

Question 13

If a certain object's data members need to be frequently modified by const functions, it is best to:

Accepted Answer

A)  Declare the member values non-const. 
B)  Declare the member values mutable. 
C)  Use const_cast to make the member values modifiable. 
D)  Use static_cast to make the member values modifiable. 
A)  Declare the member values non-const. 
B)  Declare the member values mutable. 
C)  Use const_cast to make the member values modifiable. 
D)  Use static_cast to make the member values modifiable.

Question 14

Which of the following declares a pointer ptr to a class member function in class Check that takes an int argument and returns a bool?

Accepted Answer

A)  bool:( int ) ( *Check::ptr ); 
B)  Check::( bool ( *ptr )( int ) ); 
C)  bool ( Check::*ptr )( int ); 
D)  bool*( int ) Check::ptr; 
A)  bool:( int ) ( *Check::ptr ); 
B)  Check::( bool ( *ptr )( int ) ); 
C)  bool ( Check::*ptr )( int ); 
D)  bool*( int ) Check::ptr;

Question 15

__________ inheritance solves the problem of duplicate subobjects.

Accepted Answer

A)  protected 
B)  virtual 
C)  const 
D)  static 
A)  protected 
B)  virtual 
C)  const 
D)  static

Question 16

___________ is/are used to solve the problem of variables with the same name and overlapping scopes.

Accepted Answer

A)  namespaces. 
B)  Classes. 
C)  Casts. 
D)  Dynamic memory allocation. 
A)  namespaces. 
B)  Classes. 
C)  Casts. 
D)  Dynamic memory allocation.

Question 17

An identifier's storage class:

Accepted Answer

A)  Determines whether an identifier is known only in the current source file or in any source file with proper declarations. 
B)  Determines the period during which that identifier exists in memory. 
C)  Determines where the identifier can be referenced in a program. 
D)  All of the above. 
A)  Determines whether an identifier is known only in the current source file or in any source file with proper declarations. 
B)  Determines the period during which that identifier exists in memory. 
C)  Determines where the identifier can be referenced in a program. 
D)  All of the above.

Question 18

The const_cast operator is needed when __________ data must be treated as ___________ data.

Accepted Answer

A)  const, const 
B)  Non-const, const 
C)  const, non-const 
D)  Non-const, non-const 
A)  const, const 
B)  Non-const, const 
C)  const, non-const 
D)  Non-const, non-const

Question 19

____________ namespace members appear to occupy the ___________ namespace and do not have to be qualified with a namespace name.

Accepted Answer

A)  Global, unnamed. 
B)  Unnamed, global. 
C)  Named, static. 
D)  Named, global. 
A)  Global, unnamed. 
B)  Unnamed, global. 
C)  Named, static. 
D)  Named, global.

Question 20

Namespaces cannot contain:

Accepted Answer

A)  Any functions. 
B)  main. 
C)  Classes. 
D)  Other namespaces. 
A)  Any functions. 
B)  main. 
C)  Classes. 
D)  Other namespaces.

Exam 23: Other Topics

Which symbol is used to access class members via pointers to class members?

If a derived class inherits from two base classes that both define a certain member function, then an ambiguity problem will arise when:

The const_cast operator can be used to cast away ___________ or ____________ qualifications.

Namespace definitions are different from class definitions because:

Which operator corresponds to operator keyword and_eq?

Individual namespace members can be accessed without a namespace qualifier:

Duplicate __________ could result from ___________.

Assuming that ptr is a pointer to a class data member of class Check and obj is a pointer to a Check object, which of the following statements would be used to output that data member?

Which operator keyword corresponds to ^?

Without the statement __________, all __________ statements must be written as std::cout.

Which of the following is not true of static local variables?

Multiple inheritance means that a derived class inherits the members of several:

If a certain object's data members need to be frequently modified by const functions, it is best to:

Which of the following declares a pointer ptr to a class member function in class Check that takes an int argument and returns a bool?

__________ inheritance solves the problem of duplicate subobjects.

___________ is/are used to solve the problem of variables with the same name and overlapping scopes.

An identifier's storage class:

The const_cast operator is needed when __________ data must be treated as ___________ data.

____________ namespace members appear to occupy the ___________ namespace and do not have to be qualified with a namespace name.

Namespaces cannot contain:

Introduction to Computers and C++

Introduction to C Programming; Inputoutput and Operators

Introduction to Classes, Objects and Strings

Control Statements, Assignment, and Operators

Control Statements, Logical Operators

Functions and an Introduction to Recursion

Class Templates Array and Vector; Catching Exceptions

Pointers and Pointer-Based Strings

Classes: a Deeper Look; Throwing Exceptions

Operator Overloading; String and Array Objects

Object-Oriented Programming: Inheritance

Object-Oriented Programming: Polymorphism

Stream Inputoutput: a Deeper Look

File Processing

Standard Library Containers and Iterators

Standard Library Algorithms

Exception Handling: a Deeper Look

Introduction to Custom Templates

Custom Templatized Data Structures

Searching and Sorting

Class String and String Stream Processing

Bits, Characters, C Strings and Structs

C++11 Additional Features

Filters

The const_cast operator can be used to cast away _ or __ qualifications.

Duplicate could result from _.

Without the statement , all statements must be written as std::cout.

The const_cast operator is needed when data must be treated as _ data.

__ namespace members appear to occupy the _ namespace and do not have to be qualified with a namespace name.