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

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

both new & delete

delete

compare

new

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1. Which keyword is used to throw an exception?

throws

try

except

throw

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

indeterminate()

unpredicted()

unexpected()

unutilized()

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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

Not allowed in C++

By defining multiple try-catch blocks inside a function

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Exception handlers are declared with ____________ keyword.

try

finally

catch

throw

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What happens if try catch block is not used?

arise an error

program will run

execute continuously

wrong output

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What id the syntax for catching any type of exceptions?

catch(Exception ALL)

catch(ALL)

catch(?)

catch(Exception e)

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Which function is invoked when an unhandled exception is thrown?

stop()

terminate()

aborted()

abandon()

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

Leakage

Exception

Dangling

Exhaustion

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What are the different types of exceptions?

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Which handler is used to handle all types of exception?

try-catch handler

catch handler

catch-all handler

catch-none handler

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Why do we need to handle exceptions?

To successfully compile the program

To avoid unexpected behaviour of a program during run-time

To get correct output

To let compiler remove all exceptions by itself

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What is an error in C++?

Missing of double quotes

Missing of Semicolon

Violation of program interface

Violation of syntactic and semantic rules of a languages

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

arrays

stack

smart pointers

queue

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When do we call that resource is leaked?

It can be accessed by any standard mean

Arise of runtime error

Arise of compile time error

It cannot be accessed by any standard mean

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Return type of uncaught_exception() is________________

bool

char *

double

int

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What is meant by garbage collection?

Used to delete the variables

Used to replace the variables

The form of automatic memory management

The form of manual memory management

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Why is it expensive to use objects for the exception?

Because of time and space

Because of execution time

Memory space involved in creating an exception object

Exception object is created only if an error actually happens

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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?

Terminate the program

Compilation error

Produce a runtime error

It will be added to the overhead

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What will happen when an exception is not processed?

Terminate the program

It will eat up a lot of memory and program size

Crash the compiler

Displays proper output

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

throw

catch

terminate

try

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

terminate

run

arise an error

throw

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

Segmentation fault

Produce an error

Both Segmentation fault & Produce an error

runtime error

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Header file used for exception handling in C++?

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What is the main purpose of the constructor?

Include the macros for the program

Terminate the program

Begin the execution of class

Establish the class invariant

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

After all the catch blocks

After the catch block of Base class

Before the catch block of Base class

Anywhere in the sequence of catch blocks

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

Removes the exception and tells the programmer about an exception

Calls other functions of the program

Results in the termination of the program

Continue running

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What is an exception in C++ program?

Also known as the syntax error

A problem that arises during the execution of a program

Also known as semantic error

A problem that arises during compilation

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Uncaught exception leads to ______________

no effect on the program

termination of program

successful execution of programs

execution of other functions of the program starts

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What operation can be performed by destructor?

Abort the program

Exit from the current block

Terminate the program

Resource cleanup

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Which header file is used to declare the standard exception?

#include<exception>

#include<error>

#include<exce>

#include<except>

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

default values

static values

const values

dynamic allocations

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Which statement is used to catch all types of exceptions?

catch(Test t)

catch()

catch(Test)

catch(?)

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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 be termianted abnormally

Compiler throws compile time errors about it

Program will run without any interrupt

Compiler executes only main()

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What is meant by exception specification?

A catch can catch all types of exceptions

A try can catch all types of exceptions

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

A function can throw any type of exceptions

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

static memory allocation

pointer

const reference

dynamic memory allocation

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

Using Exception keyword

Using Exception block

Using try-catch block

Using Error handling schedules

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

Terminate the program

Improve the exception safety

Crash the compiler

Exit from the block

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

destructor

class

main()

constructor

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Where are standard exception classes grouped?

final

namespace std

error

catch

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

All of the mentioned

You have to handle all exceptional cases explicitly

The code becomes more difficult to read

Your code size increases dramatically

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Which alternative can replace the throw statement?

exit

return

break

for

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What do you mean by ?No exception specification??

It can try anything

It throws nothing

It can throw anything

It can catch anything

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Pick out the correct statement for error handling alternatives.

Use the stack

Exit from the block

Terminate the program

Use the queue

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

Reduces the amount of code in cache

Increases the amount of code

Increases the amount of code in cache

Don?t alter anything

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

catch part

try part

finally part

throw part

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What are the predefined exceptions in c++?

I/O errors

Both Memory allocation errors & I/O errors

Memory allocation errors

static errors

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

try

throw

finally

catch

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

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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 thrown again as it is not handled by that catching block

An exception that is caught twice

All of the mentioned

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

Outer catch block also executes

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

Program stops immediately

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How to handle error in the destructor?

throwing

try

terminate

both throwing & terminate

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What kind of exceptions are available in c++?

dynamic

static

handled

unhandled

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Identify the correct statement about throw(type).

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

A function can throw an exception of certain type only

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

Program stops abnormally

The compiler looks for the outer try-catch block

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

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

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How many levels are there in exception safety?

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

handler

catch handler

throw

exception handler

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

Variable not declared

An expression is wrongly written

Semicolon not written

Divide by zero

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

Set a global error indicator

Use constructor and destructor

Use break keyword

Use final keyword

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What is the difference between error and exception?

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

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

Both can be handled during run-time

Both are the same

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Which operator is used as catch-all handler?

string operator

unary operator

ternary operator

ellipses operator

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An uncaught handler returns to _______________

waits there for some time

main function

its callee

its caller

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