A Network Technician Is Attempting to Troubleshoot a Connectivity Issue

Multiple Choice

A network technician is attempting to troubleshoot a connectivity issue. The issue is only reported during the evening hours, and only a single workstation loses connectivity. Which of the following is the MOST likely cause of the issue?

A) The router has a time-based ACL, applied for the network segment.
B) A light source is creating EMI interference, affecting the UTP cabling.
C) Nightly backups are consuming excessive bandwidth.
D) The user has violated the AUP, and Internet access has been restricted.