Ann, a customer, recently upgraded her SOHO Internet to gigabit fiber from cable. She was previously getting speeds around 75Mbps down and 25Mbps up. After the upgrade, Ann runs a speed test on her desktop and gets results of 1000Mbps down and 100Mbps up. A technician connects directly to the router and sees the correct 1000Mbps speeds. Which of the following is MOST likely the cause? (Choose two.) 

Answer options:

A. All ports should be configured for full duplex.
B. There is a 10/100 switch on the network.
C. The connections are using Cat 5 cable.
D. The connections are using Cat 6 cable.
E. There is a transceiver mismatch at the fiber termination point.
F. Signal attenuation on the new fiber has reached the upper limits.

AC