Free Test try, catch, and throw ... – C++ Lan...

Q1: Which keyword is used to define a block of code to test for exceptions?

A. try B. catch C. throw D. finally

Q2: Which keyword is used to handle exceptions?

A. catch B. try C. throw D. handle

Q3: Which keyword is used to raise an exception?

A. throw B. catch C. try D. raise

Q4: Can multiple catch blocks follow a single try block?

A. Yes B. No C. Only one catch block allowed D. Only if catch blocks are nested

Q5: What happens if no catch block matches the thrown exception?

A. Program terminates B. Exception ignored C. Execution continues normally D. Exception is logged

Q6: Which of the following can be used to catch all exceptions?

A. catch(...) B. catch(*) C. catch(any) D. catch(all)

Q7: Can try blocks be nested inside other try blocks?

A. Yes B. No C. Only if outer try catches exceptions D. Only if inner try has no catch

Q8: Is it possible to rethrow an exception from inside a catch block?

A. Yes B. No C. Only with throw keyword D. Only with throw new

Q9: What type of entities can be thrown as exceptions?

A. Any type (objects, primitives) B. Only objects derived from std::exception C. Only integers D. Only strings

Q10: Which block executes regardless of whether an exception is thrown or not?

A. There is no finally block in C++ B. try C. catch D. throw

Q11: What is the purpose of a throw statement?

A. To signal that an error or unexpected condition occurred B. To catch an exception C. To try a block of code D. To declare a function

Q12: How can exceptions be caught by reference?

A. catch(const ExceptionType& e) B. catch(ExceptionType e) C. catch(ExceptionType* e) D. catch(&ExceptionType e)

Q13: What is a common base class for standard exceptions?

A. std::exception B. std::error C. std::throwable D. std::base

Q14: Which statement best describes the try block?

A. Code that might throw an exception is placed inside it B. Code that handles exceptions is placed inside it C. Code that throws exceptions is placed inside it D. Code that finally executes is placed inside it

Q15: Can a catch block catch exceptions of a base class type?

A. Yes B. No C. Only if explicitly stated D. Only with rethrow

Q16: Is it valid to throw a pointer as an exception?

A. Yes B. No C. Only with smart pointers D. Only with exceptions derived from std::exception

Q17: What is the difference between throw and rethrow?

A. Throw creates a new exception, rethrow throws current exception B. Throw and rethrow are the same C. Rethrow creates new exception D. Throw is used only in constructors

Q18: Which block is executed if an exception is thrown but no matching catch block is found?

A. None, program terminates B. try block again C. catch block D. finally block

Quiz for try, catch, and throw keywords