Derived Classes, Templates & Exception Handling in C++ Quiz 3

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Which alternative can replace the throw statement?

return

break

exit

for

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Header file used for exception handling in C++?

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What is most suitable for returning the logical errors in the program?

Set a global error indicator

Use final keyword

Use break keyword

Use constructor and destructor

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What are the different types of exceptions?

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Exception handlers are declared with ____________ keyword.

catch

finally

throw

try

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What will happen if an exception that is thrown may cause a whole load of objects to go out of scope?

It will be added to the overhead

Compilation error

Produce a runtime error

Terminate the program

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What is the main purpose of the constructor?

Include the macros for the program

Establish the class invariant

Begin the execution of class

Terminate the program

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When do we call that resource is leaked?

Arise of runtime error

Arise of compile time error

It cannot be accessed by any standard mean

It can be accessed by any standard mean

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In nested try-catch block, if the inner catch block gets executed, then______________

Program stops immediately

Compiler jumps to the outer catch block and executes remaining statements of the main() function

Compiler executes remaining statements of outer try-catch block and then the main() function

Outer catch block also executes

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What will not be called when the terminate() is raised in the constructor?

class

main()

constructor

destructor

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What is meant by exception specification?

A function is limited to throwing only a specified list of exceptions

A try can catch all types of exceptions

A function can throw any type of exceptions

A catch can catch all types of exceptions

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An uncaught handler returns to _______________

waits there for some time

its callee

its caller

main function

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What is Re-throwing an exception means in C++?

An exception that is not handled in one caught hence thrown again

An exception that is caught twice

All of the mentioned

An exception that is thrown again as it is not handled by that catching block

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What kind of error can arise when there is a problem with memory?

Segmentation fault

Both Segmentation fault & Produce an error

Produce an error

runtime error

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Pick out the correct statement for error handling alternatives.

Terminate the program

Use the queue

Use the stack

Exit from the block

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Why is it expensive to use objects for the exception?

Because of time and space

Because of execution time

Exception object is created only if an error actually happens

Memory space involved in creating an exception object

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How to handle error in the destructor?

throwing

terminate

both throwing & terminate

try

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How one can restrict a function to throw particular exceptions only?

By defining a generic function within a try-catch block

By defining a function with throw clauses

By defining multiple try-catch blocks inside a function

Not allowed in C++

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What do you mean by ?No exception specification??

It throws nothing

It can try anything

It can catch anything

It can throw anything

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Which part of the try-catch block is always fully executed?

finally part

catch part

try part

throw part

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The C++ code which causes abnormal termination/behaviour of a program should be written under _________ block.

throw

try

finally

catch

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Which handler is used to handle all types of exception?

catch-all handler

try-catch handler

catch handler

catch-none handler

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Why do we need to handle exceptions?

To successfully compile the program

To let compiler remove all exceptions by itself

To get correct output

To avoid unexpected behaviour of a program during run-time

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What is meant by garbage collection?

The form of manual memory management

Used to delete the variables

Used to replace the variables

The form of automatic memory management

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1. Which keyword is used to throw an exception?

except

throws

throw

try

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Which is used to solve the memory management problem in c++?

stack

arrays

queue

smart pointers

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If inner catch block is unable to handle the exception thrown then__________

Program stops abnormally

The compiler will not check for appropriate catch handler of the outer try block

The compiler looks for the outer try-catch block

The compiler will check for appropriate catch handler of the outer try block

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What are the predefined exceptions in c++?

static errors

I/O errors

Both Memory allocation errors & I/O errors

Memory allocation errors

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What is an exception in C++ program?

Also known as semantic error

A problem that arises during compilation

Also known as the syntax error

A problem that arises during the execution of a program

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What are the operators available in C++ for dynamic allocation and de-allocation of memories?

delete

new

both new & delete

compare

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How many types of standard exception are there in c++?

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What function will be called when we have an uncaught exception?

throw

terminate

catch

try

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Return type of uncaught_exception() is________________

bool

int

double

char *

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What happens if try catch block is not used?

arise an error

wrong output

program will run

execute continuously

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What are the disadvantages if use return keyword to return error codes?

You have to handle all exceptional cases explicitly

The code becomes more difficult to read

Your code size increases dramatically

All of the mentioned

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What is the use of RAII in c++ programming?

Crash the compiler

Terminate the program

Improve the exception safety

Exit from the block

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In nested try catch blocks, if both inner and outer catch blocks are unable to handle the exception thrown, then ______________

Program will run without any interrupt

Compiler executes only main()

Program will be termianted abnormally

Compiler throws compile time errors about it

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Which of the following is an exception in C++?

An expression is wrongly written

Semicolon not written

Divide by zero

Variable not declared

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What is the difference between error and exception?

Exceptions can be handled at the run-time but the errors cannot

Both are the same

Both can be handled during run-time

Errors can be handled at the run-time but the exceptions cannot

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Which of the following is best to include under try block?

const values

static values

default values

dynamic allocations

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By default, what a program does when it detects an exception?

Continue running

Removes the exception and tells the programmer about an exception

Calls other functions of the program

Results in the termination of the program

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Where are standard exception classes grouped?

error

namespace std

catch

final

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What is an error in C++?

Missing of double quotes

Violation of program interface

Violation of syntactic and semantic rules of a languages

Missing of Semicolon

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Which function is invoked when we try to throw an exception that is not supported by a function?

unutilized()

indeterminate()

unpredicted()

unexpected()

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What will happen when a programs throws any other type of exception other than specified?

arise an error

run

throw

terminate

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Where should we place catch block of the derived class in a try-catch block?

After the catch block of Base class

Anywhere in the sequence of catch blocks

Before the catch block of Base class

After all the catch blocks

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Which operations don?t throw anything?

Operations which are dynamic

Operations which are reversible

Operations which are irreversible

Operations which are static

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How many levels are there in exception safety?

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What operation can be performed by destructor?

Terminate the program

Abort the program

Resource cleanup

Exit from the current block

50 / 63

Identify the correct statement about throw(type).

A function can throw an exception of certain type only

A function can catch all types of exceptions

A function can throw any type of exceptions

A function can?t throw any type of exception

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What will happen when an exception is not processed?

Terminate the program

Crash the compiler

It will eat up a lot of memory and program size

Displays proper output

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What kind of exceptions are available in c++?

handled

unhandled

static

dynamic

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Which function is invoked when an unhandled exception is thrown?

stop()

terminate()

aborted()

abandon()

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Which type of program is recommended to include in try block?

const reference

dynamic memory allocation

static memory allocation

pointer

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What id the syntax for catching any type of exceptions?

catch(Exception e)

catch(Exception ALL)

catch(ALL)

catch(?)

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Which is used to handle the exceptions in c++?

exception handler

throw

catch handler

handler

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How Exception handling is implemented in the C++ program?

Using Error handling schedules

Using try-catch block

Using Exception block

Using Exception keyword

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Which header file is used to declare the standard exception?

#include<except>

#include<error>

#include<exception>

#include<exce>

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What can go wrong in resource management on c++?

Exhaustion

Exception

Dangling

Leakage

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Which statement is used to catch all types of exceptions?

catch(Test)

catch(?)

catch(Test t)

catch()

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Uncaught exception leads to ______________

termination of program

successful execution of programs

no effect on the program

execution of other functions of the program starts

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Which operator is used as catch-all handler?

unary operator

ellipses operator

string operator

ternary operator

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What will happen when we move to try block far away from catch block?

Don?t alter anything

Increases the amount of code in cache

Reduces the amount of code in cache

Increases the amount of code

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