$42$ What does the term "attenuation" mean in data communication? O loss of signal strength as distance increases strengthening of a signal by a networking device O time for a signal to reach its destination O leakage of signals from one cable pair to another $43$ A client packet is received by a server. The packet has a destination port number of $80.$ What service is the client requesting? O DHCP O DNS O HTTP O SMTP $44$ What technique is used with UTP cable to help protect against signal interference from crosstalk? O wrapping a foil shield around the wire pairs O encasing the cables within a flexible plastic sheath O terminating the cable with special grounded connectors O twisting the wires together into pairs $45$ Refer to the exhibit. What is wrong with the displayed termination? The woven copper braid should not have been removed. The wires are too thick for the connector that is used. The wrong type of connector is being used. O The untwisted length of each wire is too long.