b. A MAC address is represented by binary digits that are organized in pairs.
c. It is not necessary for a device to have a unique MAC address to participate in the
network.
d. The MAC address can never be changed.
47. Which statement about NICs is accurate?
a. The NIC plugs into a USB port and provides a port for connecting to the network.
b. The NIC communicates with the network through a serial connection and
communicates with the computer through a parallel connection.
c. The NIC communicates with the network through a parallel connection and
communicates with the computer through a serial connection.
d. An NIC is also referred to as a switch adapter.
Review Questions 137
48. Which minimum category of UTP is required for Ethernet 1000BASE-T?
a. Category 3
b. Category 4
c. Category 5
d. Category 5e
49. Match the UTP categories to the environments in which they are most commonly used.
____1. Category 1
____2. Category 2
____3. Category 3
____4. Category 4
____5. Category 5
____6. Category 5e
____7. Category 6
a. Capable of transmitting data at speeds up to 100 Mbps
b. Used in networks running at speeds up to 1000 Mbps (1 Gbps)
c. Consists of 4 pairs of 24-gauge copper wires, which can transmit data at speeds
up to 1000 Mbps
d.
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