Which of the following is a multifunction device in a SOHO network?

________ is an I/O-performance-enhancement technique—it reduces the number of I/O operations by combining smaller outputs together in memory; the number of physical I/O operations is much smaller than the number of I/O requests issued by the program.

a. Aggregating b. Accumulating c. Amassing d. Buffering

The Object class equals() method returns a(n) ____ value indicating whether the objects are equal.

A. int B. equals C. null D. boolean