2-16. Traffic analysis includes statistical studies of messages or transmissions and the
correlation of these studies to give information on volume, types, directional flow, and peak and
low periods of traffic. Traffic analysis is prevented by using dummy traffic to preclude or
confuse the study. The introduction of _______________ traffic in a radio net is a method often
used to prevent _______________ _______________.
(2-16. Answer: dummy, traffic analysis)
2-17. Traffic flow security is another means of preventing traffic analysis. A continuous flow of
random signals is used with no indication as to whether they are encrypted messages or random
fillers. In addition to the use of dummy traffic, traffic analysis can be prevented by providing
security of _______________ _______________.
(2-17. Answer: traffic flow)
2-18. An analysis of our traffic can be prevented by using _______________ traffic or by
providing traffic flow _______________.
(2-18. Answer: dummy, security)
2-19. Interception of the radio signals cannot be prevented or detected. Wire is less vulnerable
but is still susceptible to taps or unauthorized listening devices. The medium most susceptible to
interception is _______________.
(2-19. Answer: radio)
2-20. The possibility of interception of radio signals can be reduced by using directional
antennas, low power output, and radio listening silence. Measures often used to reduce the
possibility of intercepting radio signals are using _______________ antennas and
(2-20. Answer: directional, power output)