MCQ Modul.08
Correct ans.
Question 1
1 / 1 pts

Choose the right phrase to make the statement true: When a variable declaration starts with...
const int c ...

...a pointer to such a variable could not be taken in any way
Correct!

...the only way of setting its value is doing it through its initializer

...it could not be passed as an argument to any function

...a compiler protects it from all indirect modifications

Question 2
1 / 1 pts
The pointer named p, declared in the following way, is a:
char * const p = "";
  
the declaration is invalid

Correct!
  
const-qualified pointer to char

  
const-qualified pointer to const-qualified char

  
pointer to const-qualified char


Question 3
1 / 1 pts
The following snippet:
int v = 1;
const int *p = &v;
  
may cause compiler warning

Correct!
  
is fully correct

  
may cause runtime error

  
will cause compiler error


Question 4
1 / 1 pts
The following function:
void f(int i) {
int n = i;
if(n < 10) {
here:
i++;
goto here;
}
}
  
is fully correct

  
will cause runtime error


incorrectly uses the goto statement and will cause compilation error
Correct!
  
will cause infinite loop


Question 5
1 / 1 pts
One of the following statements is false ‑ which one?

the goto jump may not lead to the outside of compound statement
Correct!

the goto jump may lead to the outside of a function


the goto jump may not lead to the inside of a function

the goto jump may not lead to the inside of compound statement

Question 6
1 / 1 pts
The setjmp() function behaves as it had:
  
more than one entry and one exit

  
more that one entry and more then one exit

Correct!
  
one entry and more then one exit

  
one entry and one exit


Question 7
1 / 1 pts
Assuming the following f() function's declaration, point the correct example of its invocation:
void f(char s[1\]);
  
f("a")

Correct!
  
f("")

  
f("ab")

  
f("abc")


Question 8
1 / 1 pts
A syntax used in the following snippet is named:
char s[2\] = { [1\] = 'a', [0\] = 'b' };
  
indexed initializer

Correct!
  
designated initializer

  
enumerated initializer

  
free initializer


Question 9
1 / 1 pts
The two commonly used assembly language syntax conventions are named:
  
AT&T and Bell

  
Motorola and Intel

Correct!
  
AT&T and Intel

  
Bell and Motorola


Question 10
1 / 1 pts
The place where previous side effects have occurred already and none of next side effects have occurred yet is named:
  
characteristic point

  
compound point

  
local point

Correct!
  
sequence point


Question 11
1 / 1 pts
The following function prototype...
int doit(const int *);

...requires the argument to be const qualified pointer

...requires the argument to be a pointer to const qualified value
  
...requires the argument to be literal

Correct!

...is a promise that the argument won't be modified during invocation

Question 12
1 / 1 pts
Select the false statement:
Correct!

a variable must not be const and volatile at the same time

a compiler will avoid storing the const-volatile variable in CPU registers

a const-volatile variable must not be explicitly modified in the code containing its declaration

a const-volatile variable may be implicitly modified by the background process

Question 13
1 / 1 pts
The following snippet:
int const v = 1;
int const * const p = &v;
Correct!
  
is fully correct

  
will cause compiler error

  
may cause compiler warning

  
may cause runtime error


Question 14
1 / 1 pts
The following function:
int f(int i) {
if(i == 0) goto 123;
i++;
123:
return i;
}
  
will cause infinite loop

Correct!
  
will cause compilation error

  
is fully correct

  
will cause runtime error


Question 15
1 / 1 pts
Complete the sentence to make it true: When a function is declared in the following way:
int fun(int restrict *v1, int *v2) { ... }
  
the executable code is expected to be longer


the compiler will check if v1 and v2 don't cover the same memory area
  
the execution time will be longer

Correct!

the programmer is obliged to ensure that v1 and v2 don't cover the same memory area

Question 16
1 / 1 pts
What should be placed instead of question marks to make the code working properly?
int main(void) {
if(setjmp(buf) ?? 0)
f();
else
puts("returned from long jump");
return 0;
}
  
<

Correct!
  
==

  
>

  
!=


Question 17
1 / 1 pts
Assuming the following f() function's declaration, point the correct example of its invocation containing the shortest argument
void f(char s[static 3\]);
  
f("")

Correct!
  
f("ab")

  
f("abc")

  
f("a")


Question 18
1 / 1 pts
Which of the following headers is valid?
  
int f(int T[2\][2\][static 2\])

Correct!
  
int f(int T[static 2\][2\][2\])

  
int f(int T[2\][static 2\][2\])

  
int f(int T[static 2\][2\][static 2\])


Question 19
1 / 1 pts
To be successfully compiled the following snippet must be processed by:
int f(int n, int *v) {
int t[n\];
while(n) {
t[n\] = v[n\];
n--;
}
return n;
}
  
C90 compliant compiler

  
ANSI C compliant compiler

Correct!
  
C99 compliant compiler

  
C89 compliant compiler


Question 20
1 / 1 pts
The following snippet
printf("%d\n", a * ++a);
  
always outputs 3

Correct!

contains unsequenced side effects and consequently its output is implementation dependent
  
always outputs 6

  
always outputs 9