CompTIA Network+ N10-006 Q815

A network administrator is using a popular speed test website to help diagnose a slow Internet report. The company has a 100Mbps symmetrical Wan connection, does not perform any traffic throttling, and is not experiencing any packer loss.
Download: 80 Mbps
Upload: 5.1Mbps

Which of the following is the MOST likely reason for the results shown?

A. There is a DNS misconfiguration.
B. Users are watching a lot of streaming videos.
C. There is a misconfigured port on the firewall.
D. Users are sending large file attachments to the cloud.

Correct Answer: D