Review Questions
Use the questions here to review what you learned in this chapter. The correct answers and solutions are found in Appendix A, “Answers to Chapter Review Questions.”
What organization is responsible for Ethernet standards?
- ISO
- IEEE
- EIA
- IEC
What are the characteristics of Ethernet 802.3? (Choose three.)
- Based on the CSMA/CD process
- Is a standard that has been replaced by Ethernet II
- Specifies the physical layer (Layer 1)
- Developed in the mid-1970s
- Specifies the MAC portion of the data link layer (Layer 2)
- Also referred to as thick Ethernet
Which statement about an Ethernet address is accurate?
- The address used in an Ethernet LAN directs data to the proper receiving location.
- The source address is the 4-byte hexadecimal address of the NIC on the computer that is generating the data packet.
- The destination address is the 8-byte hexadecimal address of the NIC on the LAN to which a data packet is being sent.
- Both the destination and source addresses consist of a 6-byte hexadecimal number.
Which statement about MAC addresses is accurate?
- A MAC address is a number in hexadecimal format that is physically located on the NIC.
- A MAC address is represented by binary digits that are organized in pairs.
- It is not necessary for a device to have a unique MAC address to participate in the network.
- The MAC address can never be changed.
Which statement about NICs is accurate?
- The NIC plugs into a USB port and provides a port for connecting to the network.
- The NIC communicates with the network through a serial connection and communicates with the computer through a parallel connection.
- The NIC communicates with the network through a parallel connection and communicates with the computer through a serial connection.
- A NIC is also referred to as a switch adapter.
Which minimum category of UTP is required for Ethernet 1000BASE-T?
- Category 3
- Category 4
- Category 5
- Category 5e
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
- ___8. Category 6e
- Capable of transmitting data at speeds up to 100 Mbps
- Used in networks running at speeds up to 1000 Mbps (1 Gbps)
- Consists of four pairs of 24-gauge copper wires, which can transmit data at speeds up to 1000 Mbps
- Used for telephone communications; not suitable for transmitting data
- Used in Token Ring networks; can transmit data at speeds up to 16 Mbps
- Capable of transmitting data at speeds up to 4 Mbps
- Used in 10BASE-T networks; can transmit data at speeds up to 10 Mbps
- Used in networks running at speeds up to 10 Gbps
Which type of UTP cable would you use to connect a router to a PC to have the devices pass user data?
- Straight-through
- Crossover
- Rollover
- None of these options are correct.
Which type of UTP cable would you use to connect a switch to another switch?
- Straight-through
- Crossover
- Rollover
- None of these options are correct.
What type of optical fiber provides higher speeds and bandwidths?
- MMF
- SMF
- MNF
- GMF