SPI Mock Exam 2026 – Security Principles and Information Systems Practice Test and Review Guide

SPI Mock Exam 2026 – Security Principles and Information Systems
Practice Test and Review Guide


When the ELASTICITY of a medium is HIGH, the _____ is HIGH



- stiffness

- prop. speed

- compressibility

- reflectivity - correct answer ✔✔ compressibility



What term describes the # of cycles that an acoustic variable completes in a second?



- period

- freq.

- PRP

- variable rate - correct answer ✔✔ freq.



What happens to venous flow return to the HEART when a person INHALES? - correct answer
✔✔ increases



What establishes the freq. of an US wave?



- transducer

- medium through which sound travels

- both

- neither - correct answer ✔✔ transducer

, Which of the following tasks is NOT performed by the receiver of an US sx?



- rectification

- smoothing

- compression

- degaussing - correct answer ✔✔ degaussing



Which of the following is NOT a potential mechanism for the production of bioeffects from US
exposure to the body?



- temp. elevation

- fractionation

- cavitation

- vibration - correct answer ✔✔ fractionation



Which of the following terms does NOT belong with the others?



- increased DOV

- increased DF

- increased PRP

- decreased PRF - correct answer ✔✔ increased DF



Which of the following is NOT one of the physical processes that contributes to attenuation of
US waves passing through soft tissue?



- reflection