Array

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Array

In C, how do you properly initialise an array? *

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int arr{}={11,12,15,16,19}

int arr()={11,12,15,16,19}

int arr{5}={11,12,15,16,19}

int arr[5]={11,12,15,16,19}

What does the following declaration mean?

int (*ptr)[10];

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ptr is array of pointers to 10 integers

ptr is a pointer to an array of 10 integers

ptr is an array of 10 integers

ptr is an pointer to array

In C, if you pass an array as an argument to a function, what actually gets passed? *

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Value of elements in array

First element of the array

Base address of the array

Address of the last element of array

Array is an example of _______ type memory allocation. *

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Compile time

Run time

Both A and B

None of the above

Array can be considered as set of elements stored in consecutive memory locations but having __________. *

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Same data type

Different data type

Same scope

None of these

What will be the address of the arr[2][3] if arr is a 2-D long array of 4 rows and 5 columns and starting address of the array is 2000? *

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2048

2056

2052

2042

A one dimensional array A has indices 1....75. Each element is a string and takes up three memory words. The array is stored at location 1120 decimal. The starting address of A[49] is *

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1264

1164

1167

1267

What is the maximun number of dimensions an array in C may have? *

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Two

Eight

Sixteen

Theoratically no limit. The only practical limits are memory size and compilers

Choose a correct statement about C language arrays. *

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An array address is the address of first element of array itself.

An array size must be declared if not initialized immediately.

Array size is the sum of sizes of all elements of the array.

All the above

Comment on the following 2 arrays with respect to P and Q.

int *a1[8];

int *(a2[8]);

P. Array of pointers

Q. Pointer to an array

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a1 is P, a2 is Q

a1 is P, a2 is P

a1 is Q, a2 is P

a1 is Q, a2 is Q

What will happen if in a C program you assign a value to an array element whose subscript exceeds the size of array? *

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The element will be set to 0.

The compiler would report an error.

The program may crash if some important data gets overwritten.

The array size would appropriately grow.

What is an array? *

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Collection of different type of elements

Collectionof similar type of elements

None of the above

Both A and C

What is the output of C program with arrays and pointers.? int main() { int a[3] = {20,30,40}; printf("%d", *(a+1)); } *

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Compiler error

An array elements are always stored in ___________ memory locations. *

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Sequential

Random

Sequential and Random

None of the above

What are the Types of Arrays.? *

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int, long, float, double

Struct,enum

Char

All the above

An array Index starts with.? *

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-1

Choose a correct statement about C language arrays. *

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An array size can not changed once it is created.

Array element value can be changed any number of times

To access Nth element of an array students, use students[n-1] as the starting index is 0.

All the above

An entire array is always passed by ___ to a called function. *

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Call by value

Call by reference

Address relocation

Address restructure

What is an array Base Address in C language.? *

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Base address is the address of 0th index element.

An array b[] base address is &b[0]

An array b[] base address can be printed with printf("%d", b);

All the above

What is the output of C Program with arrays and pointers.? void change(int[]); int main() { int a[3] = {20,30,40}; change(a); printf("%d %d", *a, a[0]); } void change(int a[]) { a[0] = 10; } *

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20 20

10 20

10 10

20 30

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