By default, the tail utility (Sobell, page 57) displays the last 10 lines of a file. Use tail to display the last 10 lines of a file such as /etc/services.

Which of the following commands can be used to turn off a service?

A. Net stop B. Net start C. Sc config D. # chkconfig off

How would you fix this problem?

Consider the problem of finding the K nearest neighbors of a data object. A
programmer designs Algorithm 2.1 for this task.