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C Interview Questions
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2. What is the function of ceil(X) defined in math.h do? A)It returns the value rounded down to the next lower integer B)it returns the value rounded up to the next higher integer C)the Next Higher Value D)the next lower value


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3. When do you say that a digraph is acyclic A)if and only if its first search does not have back arcs B)a digraph is acyclic if and only if its first search does not have back vertices C)if and only if its first search does not have same dfnumber D)None of these



4.A function 'q' that accepts a pointer to a character as argument and returns a pointer to an array of integer can be declared as: A)int (*q(char*)) [] B)int *q(char*) [] C)int(*q)(char*) [] D)None of the Above


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5. What kind of sorting is this: SORT (k,n) 1.[Loop on I Index] repeat thru step2 for i=1,2,........n-1 2.[For each pass,get small value] min=i; repeat for j=i+1 to N do { if K[j]


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6. Which of the Following is not defined in string.h? A)strspn() B)strerror() C)memchr() D)strod()


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7. Identify the correct argument for the function call fflush() in ANSI C: A)stdout B)stdin C)stderr D)All the above


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10. Study the code: void show() main() { show(); } void show (char *s) { printf("%sn",s); } What will happen if it is compiled & run on an ANSI C Compiler? A)It will compile & nothing will be printed when it is executed B)it will compile but not link C)the compiler will generate an error D)the compiler will generate a warning


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11. Look at the Code: #include void main() { char s1[]="abcd"; char s2[10]; char s3[]="efgh"; int i; clrscr(); i=strcmp(strcat(s3,ctrcpy(s2,s1))strcat(s3,"abcd")); printf("%d",i); } What will be the output? A)No output B) A Non Integer C)0 D) Garbage


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12. Look at the Code: main() { int a[]={1,2,3},i; for(i=0;i<3;i++) { printf("%d",*a); a++; } } Which Statement is/are True w.r.t the above code? I.Executes Successfully & Prints the contents of the array II.Gives the Error:Lvalue Required III.The address of the array should not be changed IV.None of the Above. A)Only I B)Only II C)II & III D)IV


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write the program for prime numbers?

Accenture, Aptech, Infosys, TCS,

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write the program for maximum of the following numbers? 122,198,290,71,143,325,98

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write a program for even numbers?


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write a program for odd numbers?

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Write a C program on Centralized OLTP, Decentralized OLTP using locking mechanism, Semaphore using locking mechanism, Shared memory, message queues, channel of communication, sockets and a simple program on Saving bank application program using OLTP in IPC?


Predict the output or error(s) for the following: 25. main() { printf("%p",main); }

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Un-Answered Questions { C }

What is the purpose of type declarations?


What does %p mean?


How do I use void main?


The % symbol has a special use in a printf statement. Explain how would you place this character as part of the output on the screen?


What are the advantages of the functions?


What is gets() function?


How many bytes are occupied by near, far and huge pointers (dos)?


What is a structure and why it is used?


Can we access array using pointer in c language?


Are pointers really faster than arrays?


How can I do peek and poke in c?


What is merge sort in c?


What do you understand by normalization of pointers?


What is array of structure in c programming?


Which operators cannot be overloaded a) Sizeof b) .* c) :: d) all of the above