Online Exam: CCNA V4 Practice Quiz Questions!

20 Questions | Total Attempts: 69

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Online Exam: CCNA V4 Practice Quiz Questions!

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Questions and Answers
  • 1. 
    Which options are properties of contention-based media access for a shared media? (Choose three.)
    • A. 

      Non-deterministic

    • B. 

      Less overhead

    • C. 

      One station transmits at a time

    • D. 

      Collisions exist

    • E. 

      Devices must wait their turn

    • F. 

      Token passing

  • 2. 
    What is a primary purpose of encapsulating packets into frames?
    • A. 

      Provide routes across the internetwork

    • B. 

      Format the data for presentation to the user

    • C. 

      Facilitate the entry and exit of data on media

    • D. 

      Identify the services to which transported data is associated

  • 3. 
    Refer to the exhibit. How many unique CRC calculations will take place as traffic routes from the PC to the laptop?
    • A. 

      1

    • B. 

      2

    • C. 

      4

    • D. 

      8

    • E. 

      16

  • 4. 
    What is true concerning physical and logical topologies?
    • A. 

      The logical topology is always the same as the physical topology.

    • B. 

      Physical topologies are concerned with how a network transfers frames.

    • C. 

      Physical signal paths are defined by Data Link layer protocols.

    • D. 

      Logical topologies consist of virtual connections between nodes.

  • 5. 
    Refer to the exhibit. Assuming that the network in the exhibit is converged meaning the routing tables and ARP tables are complete, which MAC address will Host A place in the destination address field of Ethernet frames destined for http://www.server?
    • A. 

      00-1c-41-ab-c0-00

    • B. 

      00-0c-85-cf-65-c0

    • C. 

      00-0c-85-cf-65-c1

    • D. 

      00-12-3f-32-05-af

  • 6. 
    What are three characteristics of valid Ethernet Layer 2 addresses? (Choose three.)
    • A. 

      They are 48 binary bits in length.

    • B. 

      They are considered physical addresses.

    • C. 

      They are generally represented in hexadecimal format.

    • D. 

      They consist of four eight-bit octets of binary numbers.

    • E. 

      They are used to determine the data path through the network.

    • F. 

      They must be changed when an Ethernet device is added or moved within the network.

  • 7. 
    Refer to the exhibit. A frame is being sent from the PC to the laptop. Which source MAC and IP addresses will be included in the frame as it leaves RouterB? (Choose two.)
    • A. 

      Source MAC – PC

    • B. 

      Source MAC – S0/0 on RouterA

    • C. 

      Source MAC – Fa0/1 on RouterB

    • D. 

      Source IP – PC

    • E. 

      Source IP – S0/0 on RouterA

    • F. 

      Source IP – Fa0/1 of RouterB

  • 8. 
    What determines the method of media access control? (Choose two.)
    • A. 

      Network layer addressing

    • B. 

      Media sharing

    • C. 

      Application processes

    • D. 

      Logical topology

    • E. 

      Intermediary device function

  • 9. 
    What is the purpose of the preamble in an Ethernet frame?
    • A. 

      Is used as a pad for data

    • B. 

      Identifies the source address

    • C. 

      Identifies the destination address

    • D. 

      Marks the end of timing information

    • E. 

      Is used for timing synchronization with alternating patterns of ones and zeros

  • 10. 
    What statements are true regarding addresses found at each layer of the OSI model? (Choose two.)
    • A. 

      Layer 2 may identify devices by a physical address burned into the network card

    • B. 

      Layer 2 identifies the applications that are communicating

    • C. 

      Layer 3 represents a hierarchical addressing scheme

    • D. 

      Layer 4 directs communication to the proper destination network

    • E. 

      Layer 4 addresses are used by intermediary devices to forward data

  • 11. 
    Which statements describe the logical token-passing topology? (Choose two.)
    • A. 

      Network usage is on a first come, first serve basis.

    • B. 

      Computers are allowed to transmit data only when they possess a token.

    • C. 

      Data from a host is received by all other hosts.

    • D. 

      Electronic tokens are passed sequentially to each other.

    • E. 

      Token passing networks have problems with high collision rates.

  • 12. 
    Which sublayer of the data link layer prepares a signal to be transmitted at the physical layer?
    • A. 

      LLC

    • B. 

      MAC

    • C. 

      HDLC

    • D. 

      NIC

  • 13. 
    What is true regarding media access control? (Choose three.)
    • A. 

      Ethernet utilizes CSMA/CD

    • B. 

      Defined as placement of data frames on the media

    • C. 

      Contention-based access is also known as deterministic

    • D. 

      802.11 utilizes CSMA/CD

    • E. 

      Data Link layer protocols define the rules for access to different media

    • F. 

      Controlled access contains data collisions

  • 14. 
    What is a characteristic of a logical point-to-point topology?
    • A. 

      The nodes are physically connected.

    • B. 

      The physical arrangement of the nodes is restricted.

    • C. 

      The media access control protocol can be very simple.

    • D. 

      The data link layer protocol used over the link requires a large frame header.

  • 15. 
    What two facts are true when a device is moved from one network or subnet to another? (Choose two.)
    • A. 

      The Layer 2 address must be reassigned.

    • B. 

      The default gateway address should not be changed.

    • C. 

      The device will still operate at the same Layer 2 address.

    • D. 

      Applications and services will need additional port numbers assigned.

    • E. 

      The Layer 3 address must be reassigned to allow communications to the new network.

  • 16. 
    What is a function of the data link layer?
    • A. 

      Provides the formatting of data

    • B. 

      Provides end-to-end delivery of data between hosts

    • C. 

      Provides delivery of data between two applications

    • D. 

      Provides for the exchange data over a common local media

  • 17. 
    Which three factors should be considered when implementing a Layer 2 protocol in a network? (Choose three.)
    • A. 

      The Layer 3 protocol selected

    • B. 

      The geographic scope of the network

    • C. 

      The PDU defined by the transport layer

    • D. 

      The physical layer implementation

    • E. 

      The number of hosts to be interconnected

  • 18. 
    What is the primary purpose of the trailer in a data link layer frame?
    • A. 

      Define the logical topology

    • B. 

      Provide media access control

    • C. 

      Support frame error detection

    • D. 

      Carry routing information for the frame

  • 19. 
    A network administrator has been asked to provide a graphic representation of exactly where the company network wiring and equipment are located in the building. What is this type of drawing?
    • A. 

      Logical topology

    • B. 

      Physical topology

    • C. 

      Cable path

    • D. 

      Wiring grid

    • E. 

      Access topology

  • 20. 
    Refer to the exhibit. Which statement describes the media access control methods that are used by the networks in the exhibit?
    • A. 

      All three networks use CSMA/CA

    • B. 

      None of the networks require media access control.

    • C. 

      Network 1 uses CSMA/CD and Network 3 uses CSMA/CA.

    • D. 

      Network 1 uses CSMA/CA and Network 2 uses CSMA/CD.

    • E. 

      Network 2 uses CSMA/CA and Network 3 uses CSMA/CD.