1. A Gigabit Ethernet standard using CAT 5e/6 UTP cabling, with a 100-m maximum cable distance. A. 1000BaseT deployment standards
2. An Ethernet LAN designed to run on UTP cabling. Runs at 100 Mbps, uses baseband signaling, and uses two pairs of wires on CAT 5 or better cabling with 100m maximum cable distance A. 100BaseT deployment standards
3. An IEEE 802.3 classification that specifies a data rate of 10 Gbps at a distance of 100 meters using unshielded Category 6a cable or a distance of 55 meters using Category 6 cable. Also known as 10 Gigabit Ethernet or 10Bbt. A. 10GBaseT deployment standards
4. gigabit Ethernet category. Bandwidth is 1000 Mbps on half duplex and 2000 Mbps on full duplex. fiber optic cable. The maximum segment length is 3 km to 10 km (single-mode). A. 1000BaseLX (long) deployment standards
5. Gigabit Ethernet, 1,000 Mbps (half duplex)
2,000 Mbps (full duplex), Fiber optic, 220 to 550 meters depending on cable quality A. 1000BaseSX (short) deployment standards
6. How do hosts use MAC (Hardware addresses to communicate on an Ethernet LAN? A. The 48 bit MAC address is burned into the Ethernet NIC of a host. While IP addresses deliver information to separate networks, MAC addresses are used to make sure the packet is delivered to the correct device because a MAC address is unique to that device.
7. How is the decimal value 10 represented in binary? A. 1010
8. How many bits is a MAC address? A. A MAC, or hardware, address is a 48 bit (6-byte) address written in hexadecimal format.
9. How many devices in a collision domain have to listen when a single host talks? A. All
10. How many wire pairs are used with 100BaseTX full duplex? A. Full duplex Ethernet uses two pairs of wires at the same time.
11. If you are using a cable medium called 10Base2, what does this mean? A. That you are really old and using thinnet coax for your LAN medium
12. MAC Address Anatomy (first 24, last 24, 46. and 47th bit) A. Ex MM:MM:MM:DD:DD:DD
reading right to left, the first 6 digits or 24 bits Identifies the device. the other 6 digits on the right Identify the manufacturer. the 46th bit is called the Local/Global bit. This tells you if the address is the one that has been burned into the NIC or if it has been changed. The 47th bit is the Individual/Group bit. If it is a 0, that means it’s individual and a unicast address. If it is a 1, it’s a group address and a multicast/broadcast address
13. On an Ethernet switched network, what address does one host computer use to communicate with another? A. MAC address
14. What are broadcast domains? A. A broadcast domain defines a set of all the devices that hear all the broadcasts on that specific segment. As with collisions, the more broadcasts that occur on the network, the slower the network will be. This is because every device that receives a broadcast must process it to see whether the broadcast is intended for that device.
15. What are collision domains? A. A collision domain is set of LAN interfaces whose frames could collide with each other. For example, all devices connected to a hub are in the same collision domain.
16. What are the differences between half/full duplex? A. Half duplex only uses one wire pair with a digital signal either transmitting or receiving. Full duplex uses two wire pairs and a point to point connection between the transmitter and receiver. Full duplex does not collide, but is only possible with a dedicated switch port.
17. What device can you not use full-duplex communication with? A. Hub
18. What does the Base mean in 100BaseTX? A. Baseband
19. What is CSMA/CD? A. CSMA/CD = Carrier Sense Multiple Access with Collision Detection
20. What is MTU (Maximum Transmission Unit)? A. This is the largest packet size that is allowed across a network segment. It is typically 1,500 bytes.
21. What is the decimal equivalent of this binary number: 11000000.10101000.00110000.11110000? A. 192. 168. 48. 240
22. What is the decimal number 10 in hexadecimal? A. The first 10 hexadecimal digits (0-9) are the same values as the decimal values. We already know that the binary value for the number 10 is 1010- in hex the number 10 needs to be displayed as a single character. to display double-digit numbers as a single character, we substitute letters. in the example, 10 is A
23. What is the decimal value for the binary number 11101000? A. 232
24. What is the difference between baseband and broadband? A. Baseband is what all LAN’s use This means all bandwidth of the physical media is used by only one signal. For example, Ethernet uses only one digital signal at a time and requires all available bandwidth.
25. What is the effective total throughput increase with a full-duplex connection? A. Twice as much
26. What is the maximum distance of 1000BaseT? A. 100 BaseT and 1000BaseT both have a maximum of 100 meters (328 ft).
27. What is the maximum distance of 10GBaseLR? A. 1 mile
28. What is the purpose of an ARP table? A. This is a windows utility that includes a list of TCP/IP addresses and their associated MAC addresses
29. What is the purpose of the Frame Check Sequence (FCS) in an Ethernet frame? A. Error detection
30. What network access control method helps devices share the bandwidth evenly without having two devices transmit at the same time on the network medium? A. One
31. Which IEEE standard is used for Ethernet over power lines? A. 1901
32. Which of the following can run full duplex and achieve 200Mbps with CAT5e cable? A. 100BaseTX uses cat 5e and can run 200 Mbps when using full duplex
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