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? (select two).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.