Question 1

Catch blocks are not required to contain:

Accepted Answer

A)  Braces { }. 
B)  Parentheses ). 
C)  Some form of parameter type indication. 
D)  A parameter name. 
A)  Braces { }. 
B)  Parentheses ). 
C)  Some form of parameter type indication. 
D)  A parameter name. D

Question 2

Select the false statement. The functions set_terminate and set_unexpected:

Accepted Answer

A) Return pointers to the last function called by terminate and unexpected, respectively. B) Each return 0 the first time they are called. C) Take as arguments pointers to void functions with no arguments. D) Have their prototypes in header file . A) Return pointers to the last function called by terminate and unexpected, respectively. B) Each return 0 the first time they are called. C) Take as arguments pointers to void functions with no arguments. D) Have their prototypes in header file . D

Question 3

The correct order in which an exception is detected and handled is:

Accepted Answer

A)  try, catch, throw 
B)  throw, catch, try 
C)  catch, throw, try 
D)  try, throw, catch 
A)  try, catch, throw 
B)  throw, catch, try 
C)  catch, throw, try 
D)  try, throw, catch D

Question 4

To rethrow an exception, the exception handler must:

Accepted Answer

A)  Use the throw; statement. 
B)  Use the throw command with the same parameters as the original exception. 
C)  Return a reference to whatever caused the original exception. 
D)  Not have attempted to process that exception at all. 
A)  Use the throw; statement. 
B)  Use the throw command with the same parameters as the original exception. 
C)  Return a reference to whatever caused the original exception. 
D)  Not have attempted to process that exception at all.

Question 5

Which of the following is not an error-handling technique?

Accepted Answer

A)  exit. 
B)  longjump. 
C)  ifndef. 
D)  set_new_handler. 
A)  exit. 
B)  longjump. 
C)  ifndef. 
D)  set_new_handler.

Question 6

Select the false statement. A rethrown exception:

Accepted Answer

A)  Is detected by the next enclosing try block. 
B)  Is the immediate result of a throw command. 
C)  Can be processed by exception handlers following the enclosing try block. 
D)  Must have been fully processed at the time it was rethrown. 
A)  Is detected by the next enclosing try block. 
B)  Is the immediate result of a throw command. 
C)  Can be processed by exception handlers following the enclosing try block. 
D)  Must have been fully processed at the time it was rethrown.

Question 7

An advantage of using inheritance with exceptions is:

Accepted Answer

A)  The ability to catch related errors easily. 
B)  Allowing catch statements to be imported into classes. 
C)  The ability to explicitly test for derived class objects individually. 
D)  The simplification of destructor calls for objects. 
A)  The ability to catch related errors easily. 
B)  Allowing catch statements to be imported into classes. 
C)  The ability to explicitly test for derived class objects individually. 
D)  The simplification of destructor calls for objects.

Question 8

Select the false statement. The new operator:

Accepted Answer

A)  Can attempt to allocate as much memory as the programmer requests. 
B)  Returns a pointer to a location in memory. 
C)  Can indicate failure differently on different compilers. 
D)  Throws a bad_alloc exception regardless of what function is registered with set_new_handler. 
A)  Can attempt to allocate as much memory as the programmer requests. 
B)  Returns a pointer to a location in memory. 
C)  Can indicate failure differently on different compilers. 
D)  Throws a bad_alloc exception regardless of what function is registered with set_new_handler.

Question 9

The try block cannot:

Accepted Answer

A)  Enclose the code that may throw the exception. 
B)  Enclose its own catch blocks. 
C)  Test enclosing try blocks for additional catch statements if this try block's catch statements can't match the exception being thrown. 
D)  Have exceptions explicitly or implicitly thrown in the try block itself. 
A)  Enclose the code that may throw the exception. 
B)  Enclose its own catch blocks. 
C)  Test enclosing try blocks for additional catch statements if this try block's catch statements can't match the exception being thrown. 
D)  Have exceptions explicitly or implicitly thrown in the try block itself.

Question 10

Which class indicates that an error occurred in which an arithmetic result was larger than the largest number that can be stored in the computer?

Accepted Answer

A)  invalid_argument. 
B)  bad_exception. 
C)  out_of_range. 
D)  overflow_error. 
A)  invalid_argument. 
B)  bad_exception. 
C)  out_of_range. 
D)  overflow_error.

Question 11

Once an exception is thrown, when can control return to the throw point?

Accepted Answer

A)  Never. 
B)  Only after the exception is caught. 
C)  Once the stack unwinding process is completed. 
D)  Immediately after the exception is thrown. 
A)  Never. 
B)  Only after the exception is caught. 
C)  Once the stack unwinding process is completed. 
D)  Immediately after the exception is thrown.

Question 12

Which of the following is not a case in which function terminate is called?

Accepted Answer

A)  When the exception mechanism cannot find a matching catch for a thrown exception. 
B)  When the abort function is called before any call to function set_abort. 
C)  When a destructor attempts to throw an exception during stack unwinding. 
D)  When an attempt is made to rethrow an exception when there is no exception currently being handled. 
A)  When the exception mechanism cannot find a matching catch for a thrown exception. 
B)  When the abort function is called before any call to function set_abort. 
C)  When a destructor attempts to throw an exception during stack unwinding. 
D)  When an attempt is made to rethrow an exception when there is no exception currently being handled.

Question 13

An exception:

Accepted Answer

A)  Terminates program execution. 
B)  Terminates the block where the exception occurred. 
C)  Will terminate the block where the exception occurred unless a catch command stops it. 
D)  Will not terminate a block unless explicitly instructed to do so. 
A)  Terminates program execution. 
B)  Terminates the block where the exception occurred. 
C)  Will terminate the block where the exception occurred unless a catch command stops it. 
D)  Will not terminate a block unless explicitly instructed to do so.

Question 14

Both "ignoring the exception" and "aborting the program" are error-handling techniques that:

Accepted Answer

A)  Cannot be used if the error is fatal. 
B)  Always result in a resource leak. 
C)  Should not be used for mission-critical applications. 
D)  Allow program execution to proceed as if no error had occurred. 
A)  Cannot be used if the error is fatal. 
B)  Always result in a resource leak. 
C)  Should not be used for mission-critical applications. 
D)  Allow program execution to proceed as if no error had occurred.

Question 15

Exception handling should not be used:

Accepted Answer

A)  As an alternative for program control. 
B)  To make error handling uniform on large projects. 
C)  To deal with errors that do not arise very often. 
D)  To deal with errors for components that will be widely used in other applications, such as classes and libraries. 
A)  As an alternative for program control. 
B)  To make error handling uniform on large projects. 
C)  To deal with errors that do not arise very often. 
D)  To deal with errors for components that will be widely used in other applications, such as classes and libraries.

Question 16

Exception handling may allow a program to:

Accepted Answer

A)  Terminate in a controlled manner. 
B)  Be more robust and fault-tolerant. 
C)  Continue executing as if no problem was encountered. 
D)  All of the above. 
A)  Terminate in a controlled manner. 
B)  Be more robust and fault-tolerant. 
C)  Continue executing as if no problem was encountered. 
D)  All of the above.

Question 17

Select the false statement regarding exceptions.

Accepted Answer

A) The C++ standard has a hierarchy of exception classes. B) All exception classes are accessible via . C) Several classes derive from class exception. D) The what function can be overridden in each class derived from exception. A) The C++ standard has a hierarchy of exception classes. B) All exception classes are accessible via . C) Several classes derive from class exception. D) The what function can be overridden in each class derived from exception.

Question 18

Placing throw) after a function's parameter list:

Accepted Answer

A)  Guarantees that all exceptions can be thrown in this function. 
B)  Guarantees that only programmer-defined exceptions can be thrown in this function. 
C)  Indicates that throwing an exception in this function would call unexpected. 
D)  Indicates that the compiler will issue an error if the function contains a throw expression. 
A)  Guarantees that all exceptions can be thrown in this function. 
B)  Guarantees that only programmer-defined exceptions can be thrown in this function. 
C)  Indicates that throwing an exception in this function would call unexpected. 
D)  Indicates that the compiler will issue an error if the function contains a throw expression.

Question 19

If dynamic memory has been allocated for an object and an exception occurs, then:

Accepted Answer

A)  The catch block will not work properly. 
B)  A memory leak could result. 
C)  The object's constructor will cause another exception. 
D)  Multiple pointers to memory could be created. 
A)  The catch block will not work properly. 
B)  A memory leak could result. 
C)  The object's constructor will cause another exception. 
D)  Multiple pointers to memory could be created.

Question 20

The proper syntax for a throw list is:

Accepted Answer

A)  int g double h ) throw a, b, c ) 
B)  int g double h ) throw a b c ) 
C)  int g double h ) throw a )
Throw b )
Throw c ) 
D)  int g double h ) throw a ),
Throw b ),
Throw c ) 
A)  int g double h ) throw a, b, c ) 
B)  int g double h ) throw a b c ) 
C)  int g double h ) throw a )
Throw b )
Throw c ) 
D)  int g double h ) throw a ),
Throw b ),
Throw c )

Exam 16: Exception Handling

Catch blocks are not required to contain:

Select the false statement. The functions set_terminate and set_unexpected:

The correct order in which an exception is detected and handled is:

To rethrow an exception, the exception handler must:

Which of the following is not an error-handling technique?

Select the false statement. A rethrown exception:

An advantage of using inheritance with exceptions is:

Select the false statement. The new operator:

The try block cannot:

Which class indicates that an error occurred in which an arithmetic result was larger than the largest number that can be stored in the computer?

Once an exception is thrown, when can control return to the throw point?

Which of the following is not a case in which function terminate is called?

An exception:

Both "ignoring the exception" and "aborting the program" are error-handling techniques that:

Exception handling should not be used:

Exception handling may allow a program to:

Select the false statement regarding exceptions.

Placing throw) after a function's parameter list:

If dynamic memory has been allocated for an object and an exception occurs, then:

The proper syntax for a throw list is:

Introduction to Computers, the Internet and the World Wide Web

Introduction to C Programming

Control Statements, Part 1

Control Statements, Part 2

Functions and an Introduction to Recursion

Arrays and Vectors

Pointers and Pointer-Based Strings

Sequential-Access Files

Classes

Classes: a Deeper Look, Part 2

Operator Overloading; String and Array Objects

Object-Oriented Programming: Inheritance

Object-Oriented Programming: Polymorphism

Templates

Stream Inputoutput

File Processing

Class String and String Stream Processing

Searching and Sorting

Data Structures

Standard Template Library Stl

Bits, Characters, C Strings and Structs

Boost Libraries, Technical Report 1 and C0x

Other Topics

ATM Case Study, Part 1: Object-Oriented Design With the Uml

ATM Case Study, Part 2: Implementing an Object-Oriented Design

Game Programming With Ogre

Filters