A secondary office location containing servers already configured with all necessary software and files to minimize downtime is considered to be which of the following types of disaster recovery sites?

What is a reason for a technician to use a tone generator?

A) Locate an RJ-45 drop B) Detect a break in a fiber cable C) Perform a loopback test D) Determine wireless interference in a particular area

The class ObjectOutputStream contains all of the following methods except:

(a) writeInt() (b) writeChar() (c) writeDouble() (d) println()