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CCNA 1 R&S Introduction to Networks Chapter 4 Exam

CCNA 1 R&S Introduction to Networks Chapter 4 Exam

CCNA 1 R&S Introduction to Networks Chapter 4 Exam

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Chapter 4: Network Access

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  2. Review
  1. Question 1 of 22
    1. Question
    2 points

    What are two reasons for physical layer protocols to use frame encoding techniques? (Choose two.)

    Correct

    Incorrect

  2. Question 2 of 22
    2. Question
    2 points

    Which statement is correct about multimode fiber?

    Correct

    Incorrect

  3. Question 3 of 22
    3. Question
    2 points

    Which layer of the OSI model is responsible for specifying the encapsulation method used for specific types of media?

    Correct

    Incorrect

  4. Question 4 of 22
    4. Question
    2 points

    The throughput of a FastEthernet network is 80 Mb/s. The traffic overhead for establishing sessions, acknowledgments, and encapsulation is 15 Mb/s for the same time period. What is the goodput for this network?

    Correct

    Incorrect

  5. Question 5 of 22
    5. Question
    2 points

    A network administrator notices that some newly installed Ethernet cabling is carrying corrupt and distorted data signals. The new cabling was installed in the ceiling close to fluorescent lights and electrical equipment. Which two factors may interfere with the copper cabling and result in signal distortion and data corruption? (Choose two.)

    Correct

    Incorrect

  6. Question 6 of 22
    6. Question
    2 points

    What is the purpose of the FCS field in a frame?

    Correct

    Incorrect

  7. Question 7 of 22
    7. Question
    2 points

    As data travels on the media in a stream of 1s and 0s how does a receiving node identify the beginning and end of a frame?​

    Correct

    Incorrect

  8. Question 8 of 22
    8. Question
    2 points

    Which statement describes signaling at the physical layer?

    Correct

    Incorrect

  9. Question 9 of 22
    9. Question
    3 points

    A network administrator is designing the layout of a new wireless network. Which three areas of concern should be accounted for when building a wireless network? (Choose three.)

    Correct

    Incorrect

  10. Question 10 of 22
    10. Question
    2 points

    What is one main characteristic of the data link layer?

    Correct

    Incorrect

  11. Question 11 of 22
    11. Question
    2 points

    What is one advantage of using fiber optic cabling rather than copper cabling?

    Correct

    Incorrect

  12. Question 12 of 22
    12. Question
    2 points

    Fill in the blank.

    • What acronym is used to reference the data link sublayer that identifies the network layer protocol encapsulated in the frame? (LLC, llc)
    Correct

    Incorrect

  13. Question 13 of 22
    13. Question
    2 points

    Why are two strands of fiber used for a single fiber optic connection?

    Correct

    Incorrect

  14. Question 14 of 22
    14. Question
    2 points

    Refer to the exhibit. The PC is connected to the console port of the switch. All the other connections are made through FastEthernet links. Which types of UTP cables can be used to connect the devices?​

    Correct

    Incorrect

  15. Question 15 of 22
    15. Question
    2 points

    What is true concerning physical and logical topologies?

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    Incorrect

  16. Question 16 of 22
    16. Question
    2 points

    Fill in the blank.

    • The term (Bandwidth, bandwidth) indicates the capacity of a medium to carry data and it is typically measured in kilobits per second (kb/s) or megabits per second (Mb/s).​
    Correct

    Incorrect

  17. Question 17 of 22
    17. Question
    2 points

    Refer to the exhibit. What is wrong with the displayed termination?

    Correct

    Incorrect

  18. Question 18 of 22
    18. Question
    2 points

    Fill in the blank with a number.

    • 10,000,000,000 b/s can also be written as (10) Gb/s.
    Correct

    Incorrect

  19. Question 19 of 22
    19. Question
    2 points

    What are two characteristics of 802.11 wireless networks? (Choose two.)

    Correct

    Incorrect

  20. Question 20 of 22
    20. Question
    2 points

    A network administrator is required to upgrade wireless access to end users in a building. To provide data rates up to 1.3 Gb/s and still be backward compatible with older devices, which wireless standard should be implemented?

    Correct

    Incorrect

  21. Question 21 of 22
    21. Question
    2 points

    How is the magnetic field cancellation effect enhanced in UTP cables?

    Correct

    Incorrect

  22. Question 22 of 22
    22. Question
    5 points

    Match the steps to the physical layer operations that occur when data is sent from one node and received at another node.

    Sort elements
    • Step 1
    • Step 2
    • Step 3
    • Step 4
    • Step 5
    • The physical layer encodes the frames
      • The physical layer creates the signals that represent the bits in each frame
        • The signals are sent on the media one at a time.
          • The physical layer retrieves the individual signals from the media
            • The physical layer restores the individual signals to their bit representations
              Correct

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