What is the most efficient way to filter events in Splunk?

The main difference between the functions atof, atoi and atol is:

a. Their return types. b. Their arguments. c. Their header files. d. Their efficiency.

Answer the following statement(s) true (T) or false (F)

1. 3D features are available in all versions of Photoshop CS6. 2. An image downloaded from the Web should only be used if you first find out whether you need to obtain permission for its use, give credit, or pay a fee. 3. Copyright issues do not apply to Web images. 4. A color correction to an image does not constitute a copyright infringement.