CCENT/ccna Icnd1 Chapters 2 + 3

21 Questions  I  By Ajeff
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 CCENT/ccna icnd1 chapters 2 + 3
CCENT/CCNA ICND1  Chapters 2 + 3

  
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Questions and Answers

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  • 1. 
    Which of the following protocols are examples of TCP/IP transport layer protocols?
    • A. 

      Ethernet

    • B. 

      UDP

    • C. 

      IP

    • D. 

      TCP

    • E. 

      HTTP


  • 2. 
    Which of the following protocols are examples of TCP/IP network access layer protocols?
    • A. 

      UDP

    • B. 

      Ethernet

    • C. 

      PPP

    • D. 

      TCP

    • E. 

      HTTP


  • 3. 
    The process of HTTP asking TCP to send some data and make sure that it is received correctly is an example of what?
    • A. 

      Same-layer interaction

    • B. 

      Adjacent-layer interaction

    • C. 

      The OSI model

    • D. 

      All the other answers are correct


  • 4. 
    The process of TCP on one computer marking a segment as segment 1, and the receiving computer then acknowledging the receipt of segment 1, is an example of what?
    • A. 

      Data encapsulation

    • B. 

      Same-layer interaction

    • C. 

      Adjacent-layer interaction

    • D. 

      The OSI model

    • E. 

      None of these answers are correct


  • 5. 
    The process of a web server adding a TCP header to a web page, followed by adding an IP header, and then a data link header and trailer is an example of what?
    • A. 

      Data encapsulation

    • B. 

      Same-layer interaction

    • C. 

      The OSI model

    • D. 

      All of these answers are correct


  • 6. 
    Which of the following terms is used specifically to identify the entity that is created when encapsulating data inside data link layer headers and trailers?
    • A. 

      Data

    • B. 

      Chunk

    • C. 

      Segment

    • D. 

      Frame

    • E. 

      Packet


  • 7. 
    Which OSI layer defines the functions of logical network-wide addressing and routing?
    • A. 

      Layer 1

    • B. 

      Layer 2

    • C. 

      Layer 3

    • D. 

      Layer 4

    • E. 

      Layer 6


  • 8. 
    Which OSI layer defines the standards for cabling and connectors?
    • A. 

      Layer 1

    • B. 

      Layer 2

    • C. 

      Layer 3

    • D. 

      Layer 4

    • E. 

      Layer 7


  • 9. 
    Which OSI layer defines the standards for data formats and encryption?
    • A. 

      Layer 1

    • B. 

      Layer 2

    • C. 

      Layer 4

    • D. 

      Layer 6

    • E. 

      Layer 7


  • 10. 
    Which of the following terms are not valid terms for the names of the seven OSI layers?
    • A. 

      Application

    • B. 

      Data link

    • C. 

      Transmission

    • D. 

      Presentation

    • E. 

      Internet


  • 11. 
    Which of the following is true about the cabling of a typical modern Ethernet LAN?
    • A. 

      Connect each device in series using coaxial cabling

    • B. 

      Connect each device in series using UTP cabling

    • C. 

      Connect each device to a centralized LAN hub using UTP cabling

    • D. 

      Connect each device to a centralized LAN switch using UTP cabling


  • 12. 
    Which of the following is true about the cabling of a 10BASE2 Ethernet LAN?
    • A. 

      Connect each device in series using coaxial cabling

    • B. 

      Connect each device in series using UTP cabling

    • C. 

      Connect each device to a centralized LAN hub using UTP cabling

    • D. 

      Connect each device to a centralized LAN switch using UTP cabling


  • 13. 
    Which of the following is true about Ethernet crossover cables?
    • A. 

      Pins 1 and 2 are reversed on the other end of the cable.

    • B. 

      Pins 1 and 2 on one end of the cable connect to pins 3 and 6 on the other end of the cable.

    • C. 

      Pins 1 and 2 on one end of the cable connect to pins 3 and 4 on the other end of the cable.

    • D. 

      The cable can be up to 1000 meters long to cross over between buildings.

    • E. 

      E.None of the other answers is correct.


  • 14. 
    Each answer lists two types of devices used in a 100BASE-TX network. If these devices were connected with UTP Ethernet cables, which pairs of devices would require a straight-through cable?
    • A. 

      PC and router

    • B. 

      PC and switch

    • C. 

      Hub and switch

    • D. 

      Router and hub

    • E. 

      Wireless access point (Ethernet port) and switch


  • 15. 
    Which of the following is true about the CSMA/CD algorithm?
    • A. 

      The algorithm never allows collisions to occur.

    • B. 

      Collisions can happen, but the algorithm defines how the computers should notice a collision and how to recover.

    • C. 

      The algorithm works with only two devices on the same Ethernet.

    • D. 

      None of the other answers is correct.


  • 16. 
    Which of the following is a collision domain?
    • A. 

      All devices connected to an Ethernet hub

    • B. 

      All devices connected to an Ethernet switch

    • C. 

      Two PCs, with one cabled to a router Ethernet port with a crossover cable and the other PC cabled to another router Ethernet port with a crossover cable

    • D. 

      None of the other answers is correct.


  • 17. 
    Which of the following describe a shortcoming of using hubs that is improved by instead using switches?
    • A. 

      Hubs create a single electrical bus to which all devices connect, causing the devices to share the bandwidth.

    • B. 

      Hubs limit the maximum cable length of individual cables (relative to switches)

    • C. 

      Hubs allow collisions to occur when two attached devices send data at the same time.

    • D. 

      Hubs restrict the number of physical ports to at most eight.


  • 18. 
    Which of the following terms describe Ethernet addresses that can be used to communicate with more than one device at a time?
    • A. 

      Burned-in address

    • B. 

      Unicast address

    • C. 

      Broadcast address

    • D. 

      Multicast address


  • 19. 
    Which of the following is one of the functions of OSI Layer 2 protocols?
    • A. 

      Framing

    • B. 

      Delivery of bits from one device to another

    • C. 

      Error recovery

    • D. 

      Defining the size and shape of Ethernet cards


  • 20. 
    Which of the following are true about the format of Ethernet addresses?
    • A. 

      Each manufacturer puts a unique code into the first 2 bytes of the address.

    • B. 

      Each manufacturer puts a unique code into the first 3 bytes of the address.

    • C. 

      Each manufacturer puts a unique code into the first half of the address.

    • D. 

      The part of the address that holds this manufacturer's code is called the MAC.

    • E. 

      The part of the address that holds this manufacturer 's code is called the OUI.


  • 21. 
    Which of the following is true about the Ethernet FCS field?
    • A. 

      It is used for error recovery.

    • B. 

      It is 2 bytes long.

    • C. 

      It resides in the Ethernet trailer, not the Ethernet header.

    • D. 

      It is used for encryption.

    • E. 

      None of the other answers is correct.


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