________ affects the measurement in a constant way and represents stable factors that affect the observed score in the same way each time the measurement is made

Decreasing collisions because of network congestion is important for supporting network communications availability. Which of the following devices is best suited for logically segmenting and creating collision domains based upon OSI Layer 2 MAC addressing?

A. Router B. Hub C. Repeater D. Switch

To close a sale more effectively, it helps to look at the value proposition:

A) from the customer's point of view B) from the competition's point of view C) as a made-up concept D) as the objective to reach for E) to determine which type of close to use