A pointer is

• a variable that stores an address

• one of the C keywords

• a pre-processor directive

• a C string

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What is the correct explanation of this C code “int *ptr[20]”.

• An array of 20 pointers to int

• A pointer to an array of 20 ints

• 20 int pointers to an array

• 20 arrays of a pointer to int

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Choose an invalid C code

• int *A = NULL;

• int *A[20][20];

• int *A[20] = NULL;

• int (*A)[20] = NULL

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What will be printed on screen from the following C code?

• 140 140

• 2 140

• 100 140

• 140 100

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What will be printed on screen from the following C code?

• 140 140

• 2 140

• 100 140

• 140 100

• skip

What will be printed on screen from the following C code?

• 140 140

• 2 140

• 100 140

• 140 100

What will be printed on screen from the following C code?

• 140 140

• 2 140

• 100 140

• 140 100

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What is the result of line number 13?

• 16.00

• 26.00

• 31.00

• 10.50

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What is the result of line number 13?

• 4.00

• 8.00

• 16.00

• 20.00

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What is the result of line number 12?

• 5

• 10

• 15

• 25

• skip