Final answer:
Radio wave interference especially when devices share similar frequencies, physical obstructions, and latency are the primary types of interference in Wi-Fi networks.
Step-by-step explanation:
Wi-Fi networks can be impeded by various types of interference, hindering wireless communication. One primary type is radio wave interference, which occurs when devices operate on similar frequencies, such as a leaky microwave oven that can affect a homeowner's Wi-Fi because both may operate at a 2.4 GHz frequency band. This interference leads to signal degradation or loss. Another form includes physical obstructions that disrupt line of sight for wireless signals, like walls or furniture. Lastly, the delay between a news anchor and a reporter in a distant country is a result of latency, which is the time taken for a signal to travel from the source to the destination and can be affected by medium, distance, and data handling methods.