CS 341 Lab 1 Spring 2024
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Computers
University
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following does not depend on the architecture of the computer?
sizeof(char*)
sizeof(char)
sizeof(int)
sizeof(int*)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a system call?
printf
fprintf
write
scanf
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Which of the following is NOT true about malloc?
The memory allocated by malloc is not initialized.
Malloc will always allocate a block of memory.
Malloc may return NULL if the requested block size is 0.
The pointer returned by malloc is of type void*.
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
How do you allocate sufficient space on the heap to copy an existing string pointed to by a char pointer char* src?
malloc(sizeof(src) + 1)
malloc(sizeof(src))
malloc(strlen(src) + 1)
malloc(strlen(src))
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the output of the following code snippet? (Assume that an int is 4 bytes)
char* ptr = "123456789\0";
int *int_ptr = (int*)ptr;
printf("%s", int_ptr + 1);
56789
23456789
Segmentation Fault
123456789
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
int* ptr1, ptr2;
What are the data types of ptr1 and ptr2 if the above line is executed?
int*, int*
int, int
int*, int
int, int*
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the value of y in the following code?
int x;
int y = x + 2;
2
Undefined
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