IS5203 Chapter 4 The Current Ethernet Specification

  1. Encapsulating a frame within a different type of frame is called what?   Tunneling
  2. Ethernet at the data link layer is responsible for Ethernet addressing commonly referred to as what?  MAC address or hardware address
  3. How is the decimal value for the binary number 11101000?  232
  4. How many bits is a MAC address?  48
  5. How many devices in a collision domain have to listen when a single host talks?  All
  6. How many wire pairs are used in half duplex?  1
  7. How many wire pairs are used with 100BaseT full duplex?  2
  8. If you are using a cable medium called 10BaseTF, what does this mean?  That you are running Ethernet over fiber
  9. On an Ethernet switched network, what address does one host computer use to communicate with another?  MAC address
  10. What device can you not use full duplex communication with?  Hub What is the decimal equivalent of this binary number:
    11000000.10101000.00110000.11110000   192.168.48.240
  11. What IEEE 802.3 standard is known as Thicknet and uses a physical and logical bus with AUI connectors?  10Base5 
  12. What IEEE 802.3 standard is known as Thinnet and can support up to 30 workstations on a single segment?  10Base2
  13. What IEEE 802.3 standard mostly known as Fast Ethernet and uses EIA/TIA Category 5 or 5e or 6, UTP two pair wiring?   10BaseTX
  14. What IEEE 802.3 standard uses Category 3 UTP wiring?  10BaseT
  15. What is a computer-networking arrangement where two or more network interfaces on a host are combined for redundancy and/or increased throughput?  Channel bonding (Ethernet bonding)
  16. What is a contention media-access method that allows all hosts on a network to share the same bandwidth of a link?  Ethernet
  17. What is a protocol that helps devices share bandwidth evenly without having two devices transmit at the same time on the network medium?  CSMA/CD (Carrier Sense Multiple Access with Collision Detection
  18. What is an Ethernet term that refers to a particular network scenario wherein one device sends a packet out on a network segment and thereby forces every other device on that same physical network segment to pay attention to it?  Collision domain
  19. What is the Base mean in 10BaseTX?  Baseband
  20. What is the decimal number 10 in hexadecimal?  9
  21. What is the effective total throughput increase with full duplex connection?     Twice as much
  22. What is the maximum distance of 1000BaseT?  100 meters
  23. What is the maximun distance of 10GBaseLR?  6 miles
  24. What is the maxium distance of 10GBaseSR?   302 meters
  25. What is the purpose of the Frame Check Sequence (FCS) in an Ethernet frame?  Error detection
  26. What layer is responsible for combining bits into bytes and bytes into frames?  Data link
  27. What mechanism is referred to when a full duplex Ethernet port is powered on, it first connects to the remote end and then negotiates with the other end of the Fast Ethernet link  Auto-detect mechanism
  28. What protocol helps devices share the bandwidth evenly without having two devices transmit at the same time on the network medium?  CSMA/CD
  29. What refers to the set of all devices on a network segment that hear all the broadcasts sent on that segment?  Broadcast domain
  30. Which Ethernet are you running when you’re using only one wire pair with a digital signal either transmitting or receiving?  Half Duplex
  31. Which Ethernet are you running when you’re using two pairs of wires and also use a point to point connection between the transmitter of the sending device and the receiver of the receiving device?  Full Duplex
  32. Which field in the 802.3 Ethernet frame is a packet sent down from the Network layer?  Data
  33. Which field in the 802.3 Ethernet frame is an alternating 1,0 pattern provides a 5MHz clock at the start of the packet, which allows the receiving devices to lock the incoming bit stream?  Preamble
  34. Which field in the 802.3 Ethernet frame is at the end of the frame and is used to store the CRC?  Frame Check Sequence (FCS)
  35. Which field in the 802.3 Ethernet frame is used by the receiving stations to determine whether an incoming packet is address to a particular host?  Destination Address (DA)
  36. Which field in the 802.3 Ethernet frame is used to identify the Network layer protocol?  Length or Type
  37. Which field in the 802.3 Ethernet frame is used to identify the transmitting device, and it uses the LSB first?  Source Address (SA)
  38. Which technology increases the bandwidth for network transmission by joining together multiple connections in one logical connection?   Bonding

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