List four kinds of data collection instruments commonly used in a needs analysis project.

A network engineer needs to set up a topology that will not fail if there is an outage on a single piece of the topology. However, the computers need to wait to talk on the network to avoid congestions. Which of the following topologies would the engineer implement?

A. Star B. Bus C. Ring D. Mesh

The ++ operator

A) is a unary operator. B) adds one to the value of its operand. C) can operate in prefix or post fix mode. D) All of the above. E) Both B and C, but not A.