C++ Questions Question 1 Question text Left uncaught, a thrown exception will ca

Question

C++ Questions

Question 1

Question text

Left uncaught, a thrown exception will cause your program to terminate.

Select one:

a. FALSE

b. TRUE

Question 2

Question text

Only a pointer variable can be set to have the value NULL.

Select one:

a. TRUE

b. FALSE

Question 3

Question text

Any function, variable declaration or class method can be marked virtual.

Select one:

a. FALSE

b. TRUE

Question 4

Question text

For a class Foo, one difference between a variable declared Foo * and a variable declared Foo & is that only the variable declared Foo & can potentially have the value NULL.

Select one:

a. FALSE

b. TRUE

Question 5

Question text

Whenever they are passed as parameters to a function, the IO classes istream and ostream must be passed using a pass-by-value parameter passing scheme.

Select one:

a. TRUE

b. FALSE

Question 6

Question text

When no class constructors are supplied by the author of a class, that class will generated errors when compiled in C++.

Select one:

a. FALSE

b. TRUE

Question 7

Question text

The body of a do { ... } while(...); loop may never execute at all, depending on what test condition is stated.

Select one:

a. FALSE

b. TRUE

Question 8

Question text

The body of a while(...) { ... } loop may never execute depending on what test condition is stated.

Select one:

a. FALSE

b. TRUE

Question 9

Question text

A throw(...) statement is an alternative way to return from a function or method that indicates some kind of failure occurred.

Select one:

a. TRUE

b. FALSE

Explanation / Answer

C++ Answers

Question 1

Left uncaught, a thrown exception will cause your program to terminate.

b. TRUE

Question 2

Only a pointer variable can be set to have the value NULL.

b. FALSE // char c = NULL is valid

Question 3

Any function, variable declaration or class method can be marked virtual.

a. FALSE

Question 4

For a class Foo, one difference between a variable declared Foo * and a variable declared Foo & is that only the variable declared Foo & can potentially have the value NULL.

a. FALSE //pointer can also be NULL

Question 5

Whenever they are passed as parameters to a function, the IO classes istream and ostream must be passed using a pass-by-value parameter passing scheme.

b. FALSE // only by reference to avoid creating a copy of the object

Question 6

When no class constructors are supplied by the author of a class, that class will generated errors when compiled in C++.

a. FALSE //If constructor definition is not explicitly mentioned by author then no error will be generated

Question 7

The body of a do { ... } while(...); loop may never execute at all, depending on what test condition is stated.

a. FALSE //it is executed at least once

Question 8

The body of a while(...) { ... } loop may never execute depending on what test condition is stated.

b. TRUE

Question 9

A throw(...) statement is an alternative way to return from a function or method that indicates some kind of failure occurred.

a. TRUE

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