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Bguires Respondus LockDown Browser Question 20 (1 point) Consider this scenario: A network administrator has carefully designed and implemented quality of service. (QoS) policies to ensure that VoIP applications receive sufficient bandwidth and low latency. However, over time. the routers receive firmware updates and patches that modify some settings. On another oceasion, another network administrator makes manual adjustments to some QoS settings on one router but does not update the central configuration management system. Eventually, a router fails and is replaced with a different model of router. Finally, a junior network technician mistakenly makes changes to the QoS settings on one of the routers while attempting to perform a maintenance task. As a result, over time. the VoIP applications for which the original network administrator designed and implemented the QoS policies are not working properly. Calls are being dropped, and the lines begin to get staticky when there are a lot of phone Calls coming in simultaneously. What is this an example of? (_) configuration drift version drift