The correct answer is "Always use pointers initialized to NULL."

Here's why:

1. Initializing pointers to NULL: This is a good practice because it ensures that your pointer has a known value before you attempt to use it. A pointer that is not initialized is known as a wild pointer. These can cause problems because they may point to some arbitrary location in memory, which can lead to unexpected behavior when you try to access or modify the data at that location.

2. Declaring pointers without specifying a data type: This is not a valid option because in C and most other languages that use pointers, you must specify the data type of the pointer. This tells the compiler how to interpret the data at the memory location that the pointer points to.

3. Always free memory before using pointers: This is not a valid option because freeing memory is something you do after you're done using a pointer, not before. If you free memory before using a pointer, the pointer will be pointing to a memory location that has been deallocated, which can lead to undefined behavior.

4. None of the mentioned options: This is not the correct answer because the first option is a valid way to avoid using wild pointers.

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The correct answer is "Always use pointers initialized to NULL."

Here's why:

1. Initializing pointers to NULL: This is a good practice because it ensures that your pointer has a known value before you attempt to use it. A pointer that is not initialized is known as a wild pointer. These can cause problems because they may point to some arbitrary location in memory, which can lead to unexpected behavior when you try to access or modify the data at that location.

2. Declaring pointers without specifying a data type: This is not a valid option because in C and most other languages that use pointers, you must specify the data type of the pointer. This tells the compiler how to interpret the data at the memory location that the pointer points to.

3. Always free memory before using pointers: This is not a valid option because freeing memory is something you do after you're done using a pointer, not before. If you free memory before using a pointer, the pointer will be pointing to a memory location that has been deallocated, which can lead to undefined behavior.

4. None of the mentioned options: This is not the correct answer because the first option is a valid way to avoid using wild pointers.

Knowee AI · Accepted Answer

The correct answer is "Always use pointers initialized to NULL."

Here's why:

1. Initializing pointers to NULL: This is a good practice because it ensures that your pointer has a known value before you attempt to use it. A pointer that is not initialized is known as a wild pointer. These can cause problems because they may point to some arbitrary location in memory, which can lead to unexpected behavior when you try to access or modify the data at that location.

2. Declaring pointers without specifying a data type: This is not a valid option because in C and most other languages that use pointers, you must specify the data type of the pointer. This tells the compiler how to interpret the data at the memory location that the pointer points to.

3. Always free memory before using pointers: This is not a valid option because freeing memory is something you do after you're done using a pointer, not before. If you free memory before using a pointer, the pointer will be pointing to a memory location that has been deallocated, which can lead to undefined behavior.

4. None of the mentioned options: This is not the correct answer because the first option is a valid way to avoid using wild pointers.

Multi Choice Type QuestionHow to avoid using wild pointers?Marks : 1Negative Marks : 0Answer hereAlways use pointers initialized to NULL.Declare pointers without specifying a data type.Always free memory before using pointers.None of the mentioned options

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