Explore topic-wise MCQs in Expressions.

This section includes 107 Mcqs, each offering curated multiple-choice questions to sharpen your Expressions knowledge and support exam preparation. Choose a topic below to get started.

101.

extern int s; int t; static int u; main() { } Which of s, t and u are available to a function present in another file?

A. Only s
B. S & u
C. S, t, u
D. None
Answer» B. S & u
Discussion
102.

Which is not a storage class?

A. Auto
B. Struct
C. Typedef
D. Static
Answer» C. Typedef
Discussion
103.

Longevity of a variable refers to

A. The duration for which the variable retains a given value during the execution of a program.
B. The portion of a program in which the variable may be visible.
C. Internal linkage of a variable.
D. External linkage of a variable.
Answer» B. The portion of a program in which the variable may be visible.
Discussion
104.

p++ executes faster than p + 1 since

A. P uses registers
B. Single machine instruction required for p++
C. Option a and b
D. None
Answer» C. Option a and b
Discussion
105.

What is the value of the following expression? i = 1; i < < 1>

A. 2
B. -2
C. 1
D. -1
Answer» B. -2
Discussion
106.

What will be the storage class of variable I in the code written below? #include< stdio> int main() { int I = 10; printf( %d , i); return 0; }

A. Automatic storage class
B. Extern storage class
C. Static storage class
D. Register storage class
Answer» B. Extern storage class
Discussion
107.

What will be the output of the following program? #include< stdio> Void f(static int*, extern int); Static int b = 12; Int main() { Static int a[5]; Register int I; For(I = 0; I < 2> A[i++] = 2 * i++; F(a, b); For(I = 0; I < 2> Printf( %d , b++); Return 0; } Void f (static int *x, extern int y) { Register int I; For(I = 0; I < 2> *(++x +1) + = 2; Y + = 2; }

A. 0 0
B. 0 6
C. 0 12
D. 12 12
Answer» D. 12 12
Discussion