Ccna1 Ver4 Chap 9

23 Questions | Total Attempts: 45

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Ccna1 Ver4 Chap 9

Rolfie is watching you ritch


Questions and Answers
  • 1. 
    In the graphic, Host A has reached 50% completion in sending a 1 KB Ethernet frame to Host D when Host B wishes to transmit its own frame to Host C. What must Host B do?
    • A. 

      Host B must wait until it is certain that Host A has completed sending its frame.

    • B. 

      Host B must send a request signal to Host A by transmitting an interframe gap.

    • C. 

      Host B must wait to receive a CSMA transmission from the hub, to signal its turn.

    • D. 

      Host B can transmit immediately since it is connected on its own cable segment.

  • 2. 
    Ethernet operates at which layers of the OSI model? (Choose two.)
    • A. 

      Physical

    • B. 

      Data Link

    • C. 

      Application

    • D. 

      Session

    • E. 

      Network

    • F. 

      Transport

  • 3. 
     Which of the following describe interframe spacing? (Choose two.)
    • A. 

      The minimum interval, measured in bit-times, that any station must wait before sending another frame

    • B. 

      The maximum interval, measured in bit-times, that any station must wait before sending another frame

    • C. 

      The 96-bit payload padding inserted into a frame to achieve a legal frame size

    • D. 

      The 96-bit frame padding transmitted between frames to achieve proper synchronization

    • E. 

      The time allowed for slow stations to process a frame and prepare for the next frame

    • F. 

      The maximum interval within which a station must send another frame to avoid being considered unreachable

  • 4. 
    What three primary functions does data link layer encapsulation provide? (Choose three.)
    • A. 

      Addressing

    • B. 

      Error detection

    • C. 

      Frame delimiting

    • D. 

      Port identification

    • E. 

      Path determination

    • F. 

      IP address resolution

  • 5. 
    When a collision occurs in a network using CSMA/CD, how do hosts with data to transmit respond after the backoff period has expired?
    • A. 

      * The hosts return to a listen-before-transmit mode.

    • B. 

      The hosts creating the collision have priority to send data.

    • C. 

      The hosts creating the collision retransmit the last 16 frames.

    • D. 

      The hosts extend their delay period to allow for rapid transmission.

  • 6. 
    What are three functions of the upper data link sublayer in the OSI model? (Choose three.)
    • A. 

      Recognizes streams of bits

    • B. 

      Identifies the network layer protocol

    • C. 

      Makes the connection with the upper layers

    • D. 

      Identifies the source and destination applications

    • E. 

      Insulates network layer protocols from changes in physical equipment

    • F. 

      Determines the source of a transmission when multiple devices are transmitting

  • 7. 
    What does the IEEE 802.2 standard represent in Ethernet technologies?
    • A. 

      MAC sublayer

    • B. 

      Physical layer

    • C. 

      Logical Link

    • D. 

      Control sublayer

    • E. 

      Network layer

  • 8. 
    Why do hosts on an Ethernet segment that experience a collision use a random delay before attempting to transmit a frame?
    • A. 

      A random delay is used to ensure a collision-free link.

    • B. 

      A random delay value for each device is assigned by the manufacturer.

    • C. 

      A standard delay value could not be agreed upon among networking device vendors.

    • D. 

      A random delay helps prevent the stations from experiencing another collision during the transmission.

  • 9. 
     Refer to the exhibit. Which option correctly identifies content that the frame data field may contain?
    • A. 

      Preamble and stop frame

    • B. 

      Network layer packet

    • C. 

      Physical addressing

    • D. 

      FCS and SoF

  • 10. 
    Host A has an IP address of 172.16.225.93 and a mask of 255.255.248.0. Host A needs to communicate with a new host whose IP is 172.16.231.78. Host A performs the ANDing operation on the destination address. What two things will occur? (Choose two.)
    • A. 

      Host A will change the destination IP to the IP of the nearest router and forward the packet.

    • B. 

      Host A will broadcast an ARP request for the MAC of its default gateway. A result of 172.16.225.0 will be obtained.

    • C. 

      Host A will broadcast an ARP request for the MAC of the destination host.

    • D. 

      A result of 172.16.224.0 will be obtained.

    • E. 

      A result of 172.16.225.255 will be obtained.

  • 11. 
    Ethernet operates at which layer of the TCP/IP network model?
    • A. 

      Application

    • B. 

      Physical

    • C. 

      Transport

    • D. 

      Internet

    • E. 

      Data link

    • F. 

      Network access

  • 12. 
    Which of the following is a drawback of the CSMA/CD access method?
    • A. 

      Collisions can decrease network performance.

    • B. 

      It is more complex than non-deterministic protocols.

    • C. 

      Deterministic media access protocols slow network performance.

    • D. 

      CSMA/CD LAN technologies are only available at slower speeds than other LAN technologies.

  • 13. 
    What is the primary purpose of ARP?
    • A. 

      Translate URLs to IP addresses

    • B. 

      Resolve IPv4 addresses to MAC addresses

    • C. 

      Provide dynamic IP configuration to network devices

    • D. 

      Convert internal private addresses to external public addresses

  • 14. 
    Refer to the exhibit. The switch and workstation are administratively configured for full-duplex operation. Which statement accurately reflects the operation of this link?
    • A. 

      No collisions will occur on this link.

    • B. 

      Only one of the devices can transmit at a time.

    • C. 

      The switch will have priority for transmitting data.

    • D. 

      The devices will default back to half duplex if excessive collisions occur.

  • 15. 
    Which statements correctly describe MAC addresses? (Choose three.)dynamically assigned
    • A. 

      Copied into RAM during system startup

    • B. 

      Layer 3 address

    • C. 

      Contains a 3 byte OUI

    • D. 

      6 bytes long

    • E. 

      32 bits long

  • 16. 
    Refer to the exhibit. Host_A is attempting to contact Server_B. Which statements correctly describe the addressing Host_A will generate in the process? (Choose two.)
    • A. 

      A packet with the destination IP of Router_B.

    • B. 

      A frame with the destination MAC address of Switch_A.

    • C. 

      A packet with the destination IP of Router_A.

    • D. 

      A frame with the destination MAC address of Router_A.

    • E. 

      A packet with the destination IP of Server_B.

    • F. 

      A frame with the destination MAC address of Server_B

  • 17. 
    Which two features make switches preferable to hubs in Ethernet-based networks? (Choose two.)
    • A. 

      Reduction in cross-talk

    • B. 

      Minimizing of collisions

    • C. 

      Support for UTP cabling

    • D. 

      Division into broadcast domains

    • E. 

      Increase in the throughput of communications

  • 18. 
    What are the two most commonly used media types in Ethernet networks today? (Choose two.)
    • A. 

      Coaxial thicknet

    • B. 

      Copper UTP

    • C. 

      Coaxial thinnet

    • D. 

      Optical fiber

    • E. 

      Shielded twisted pair

  • 19. 
    Convert the binary number 10111010 into its hexadecimal equivalent. Select the correct answer from the list below.
    • A. 

      85

    • B. 

      90

    • C. 

      BA

    • D. 

      A1

    • E. 

      B3

    • F. 

      1C

  • 20. 
    After an Ethernet collision, when the backoff algorithm is invoked, which device has priority to transmit data?
    • A. 

      The device involved in the collision with the lowest MAC address

    • B. 

      The device involved in the collision with the lowest IP address

    • C. 

      Any device in the collision domain whose backoff timer expires first

    • D. 

      Those that began transmitting at the same time

  • 21. 
    Refer to the exhibit. What command was executed on a host computer to produce the results shown?
    • A. 

      Route PRINT

    • B. 

      Arp –a

    • C. 

      Arp –d

    • D. 

      Netstat

    • E. 

      Telnet

  • 22. 
    Do you feel like a pizza right now.... mmmm pizza
    • A. 

      FUCK YOU! now i want pizza... but its too late

    • B. 

      No no.... i stay i clean CHEERS CUNT

  • 23. 
    Who bullies you most in life? -  give and explination... tell me your problems.... i am your quiz, and i will help you with your lifes problems..... shhhhh its okay to cry, your secrets safe with me... im a quiz
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