Chapter 6: Networking Fundamentals
1. D. Companies that want to ensure the safety and integrity of their data should use fiber-optic cable because it cannot be affected by electromagnetic or radio-frequency interference. Even though some copper cables have shielding, they are not immune to EMI or RFI. This eliminates twisted-pair and coaxial. CSMA/CD is an access method, not a cable type.
2. C. The IEEE 802.3 standard originally specified the use of a bus topology with coaxial baseband cable and can transmit data up to 10Mbps.
3. C. It is the responsibility of the Transport layer to signal an “all clear” by making sure the data segments are error free. It also controls the data flow and troubleshoots any problems with transmitting or receiving ...
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