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  • Question
  • Which of the following types of connections can use full duplex?

    1. Hub to hub
    2. Switch to switch
    3. Host to host
    4. Switch to hub
    5. Switch to host


  • Options
  • A. 1, 2 and 4
  • B. 3 and 4
  • C. 3 and 5
  • D. 2, 3 and 5

  • Correct Answer
  • 2, 3 and 5 

    Explanation
    Hubs cannot run full-duplex Ethernet. Full duplex must be used on a point-to-point connection between two devices capable of running full duplex. Switches and hosts can run full duplex between each other, but a hub can never run full duplex.

  • Internetworking problems


    Search Results


    • 1. Acknowledgments, sequencing, and flow control are characteristics of which OSI layer?

    • Options
    • A. Layer 2
    • B. Layer 3
    • C. Layer 4
    • D. Layer 7
    • Discuss
    • 2. What type of RJ45 UTP cable is used between switches?

    • Options
    • A. Straight-through
    • B. Crossover cable
    • C. Crossover with a CSU/DSU
    • D. Crossover with a router in between the two switches
    • Discuss
    • 3. What are the decimal and hexadecimal equivalents for the binary number 10110111?

    • Options
    • A. 69/0x2102
    • B. 183/B7
    • C. 173/A6
    • D. 83/0xC5
    • Discuss
    • 4. Which fields are contained within an IEEE Ethernet frame header?

      1. Source and destination MAC address
      2. Source and destination network address
      3. Source and destination MAC address and source and destination network address
      4. FCS field

    • Options
    • A. 1 and 4
    • B. 2 only
    • C. 2 and 3 only
    • D. 3 only
    • Discuss
    • 5. How does a host on an Ethernet LAN know when to transmit after a collision has occurred?

      1. In a CSMA/CD collision domain, multiple stations can successfully transmit data simultaneously.
      2. In a CSMA/CD collision domain, stations must wait until the media is not in use before transmitting.
      3. You can improve the CSMA/CD network by adding more hubs.
      4. After a collision, the station that detected the collision has first priority to resend the lost data.
      5. After a collision, all stations run a random backoff algorithm. When the backoff delay period has expired, all stations have equal priority to transmit data.

    • Options
    • A. 1 and 3
    • B. 2 and 4
    • C. 1,3 and 4
    • D. 2 and 5
    • Discuss
    • 6. Which two statements describe the IP address 10.16.3.65/23?

      1. The subnet address is 10.16.3.0 255.255.254.0.
      2. The lowest host address in the subnet is 10.16.2.1 255.255.254.0.
      3. The last valid host address in the subnet is 10.16.2.254 255.255.254.0.
      4. The broadcast address of the subnet is 10.16.3.255 255.255.254.0.

    • Options
    • A. 1 and 3
    • B. 2 and 4
    • C. 1, 2 and 4
    • D. 2, 3 and 4
    • Discuss
    • 7. Using the following illustration, what would be the IP address of E0 if you were using the eighth subnet? The network ID is 192.168.10.0/28 and you need to use the last available IP address in the range. The zero subnet should not be considered valid for this question.

    • Options
    • A. 192.168.10.142
    • B. 192.168.10.66
    • C. 192.168.100.254
    • D. 192.168.10.143
    • E. 192.168.10.126
    • Discuss
    • 8. The network address of 172.16.0.0/19 provides how many subnets and hosts?

    • Options
    • A. 7 subnets, 30 hosts each
    • B. 8 subnets, 8,190 hosts each
    • C. 8 subnets, 2,046 hosts each
    • D. 7 subnets, 2,046 hosts each
    • Discuss
    • 9. Your router has the following IP address on Ethernet0: 172.16.2.1/23. Which of the following can be valid host IDs on the LAN interface attached to the router?

      1. 172.16.1.100
      2. 172.16.1.198
      3. 172.16.2.255
      4. 172.16.3.0

    • Options
    • A. 1 only
    • B. 2 and 3 only
    • C. 3 and 4 only
    • D. None of the above
    • Discuss
    • 10. You have an interface on a router with the IP address of 192.168.192.10/29. Including the router interface, how many hosts can have IP addresses on the LAN attached to the router interface?

    • Options
    • A. 6
    • B. 8
    • C. 30
    • D. 32
    • Discuss


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