When a user experiences slow web page loading on their phone while in the office, the most likely cause is:
High network traffic: In an office environment, many devices are often connected to the network simultaneously, which can lead to congestion and slow internet speeds. High network traffic means more devices are competing for the same bandwidth, causing delays.
Exceeded the data usage limit: This typically applies to cellular data plans, not Wi-Fi in an office setting.
Sluggish response time: This is a symptom rather than a cause and can result from high network traffic.
Degraded network service: While this could be a factor, it is broader and less specific than high network traffic, which is more directly related to the user's experience.
Reference:
CompTIA A+ 220-1102 Exam Objectives, Section 2.7: Given a scenario troubleshoot problems with wired and wireless networks.
Network performance troubleshooting documentation.