CCNA1 v6.0 Chapter 3 Exam 2018

Chapter 3: Network Protocols and Communications

More and more, it is networks that connect us. People communicate online from everywhere. Conversations in classrooms spill into instant message chat sessions, and online debates continue at school. New services are being developed daily to take advantage of the network.

Rather than developing unique and separate systems for the delivery of each new service, the network industry as a whole has adopted a developmental framework that allows designers to understand current network platforms, and maintain them. At the same time, this framework is used to facilitate the development of new technologies to support future communications needs and technology enhancements.

Central to this developmental framework, is the use of generally-accepted models that describe network rules and functions.

Within this chapter, you will learn about these models, as well as the standards that make networks work, and how communication occurs over a network.

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CCNA1 v6.0 Chapter 3 Exam

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2. Review

1. Question 1 of 22

   1. Question

   1 points

   What method can be used by two computers to ensure that packets are not dropped because too much data is being sent too quickly?

    

   • encapsulation
   • flow control
   • access method
   • response timeout
   Correct
   

   Incorrect
   
2. Question 2 of 22

   2. Question

   1 points

   What type of communication will send a message to all devices on a local area network?

    

   • broadcast
   • multicast
   • unicast
   • allcast
   Correct
   

   Incorrect
   
3. Question 3 of 22

   3. Question

   1 points

   What process is used to place one message inside another message for transfer from the source to the destination?

    

   • access control
   • decoding
   • encapsulation
   • flow control
   Correct
   

   Incorrect
   
4. Question 4 of 22

   4. Question

   1 points

   A web client is sending a request for a webpage to a web server. From the perspective of the client, what is the correct order of the protocol stack that is used to prepare the request for transmission?

    

   • HTTP, IP, TCP, Ethernet
   • HTTP, TCP, IP, Ethernet
   • Ethernet, TCP, IP, HTTP
   • Ethernet, IP, TCP, HTTP
   Correct
   

   Incorrect
   
5. Question 5 of 22

   5. Question

   1 points

   Which statement is correct about network protocols?

    

   • Network protocols define the type of hardware that is used and how it is mounted in racks.
   • They define how messages are exchanged between the source and the destination.
   • They all function in the network access layer of TCP/IP.
   • They are only required for exchange of messages between devices on remote networks.
   Correct
   

   Incorrect
   
6. Question 6 of 22

   6. Question

   1 points

   Which statement is true about the TCP/IP and OSI models?

    

   • The TCP/IP transport layer and OSI Layer 4 provide similar services and functions.
   • The TCP/IP network access layer has similar functions to the OSI network layer.
   • The OSI Layer 7 and the TCP/IP application layer provide identical functions.
   • The first three OSI layers describe general services that are also provided by the TCP/IP internet layer.
   Correct
   

   Incorrect
   
7. Question 7 of 22

   7. Question

   1 points

   What is an advantage of using standards to develop and implement protocols?

    

   • A particular protocol can only be implemented by one manufacturer.
   • Products from different manufacturers can interoperate successfully.
   • Different manufacturers are free to apply different requirements when implementing a protocol.
   • Standards provide flexibility for manufacturers to create devices that comply with unique requirements.
   Correct
   

   Incorrect
   
8. Question 8 of 22

   8. Question

   3 points

   What three application layer protocols are part of the TCP/IP protocol suite? (Choose three.)

    

   • ARP
   • DHCP
   • DNS
   • FTP
   • NAT
   • PPP
   Correct
   

   Incorrect
   
9. Question 9 of 22

   9. Question

   1 points

   What are proprietary protocols?

    

   • protocols developed by private organizations to operate on any vendor hardware
   • protocols that can be freely used by any organization or vendor
   • protocols developed by organizations who have control over their definition and operation
   • a collection of protocols known as the TCP/IP protocol suite
   Correct
   

   Incorrect
   
10. Question 10 of 22

    10. Question

    1 points

    What is an advantage of network devices using open standard protocols?

     

    • Network communications is confined to data transfers between devices from the same vendor.
    • A client host and a server running different operating systems can successfully exchange data.
    • Internet access can be controlled by a single ISP in each market.
    • Competition and innovation are limited to specific types of products.
    Correct
    

    Incorrect
    
11. Question 11 of 22

    11. Question

    1 points

    Refer to the exhibit. If Host1 were to transfer a file to the server, what layers of the TCP/IP model would be used?

    

     

    • only application and Internet layers
    • only Internet and network access layers
    • only application, Internet, and network access layers
    • application, transport, Internet, and network access layers
    • only application, transport, network, data link, and physical layers
    • application, session, transport, network, data link, and physical layers
    Correct
    

    Incorrect
    
12. Question 12 of 22

    12. Question

    3 points

    Which three layers of the OSI model are comparable in function to the application layer of the TCP/IP model? (Choose three.)

     

    • application
    • presentation
    • session
    • transport
    • data link
    • physical
    • network
    Correct
    

    Incorrect
    
13. Question 13 of 22

    13. Question

    1 points

    At which layer of the OSI model would a logical address be encapsulated?

     

    • physical layer
    • data link layer
    • network layer
    • transport layer
    Correct
    

    Incorrect
    
14. Question 14 of 22

    14. Question

    1 points

    Which PDU format is used when bits are received from the network medium by the NIC of a host?

     

    • file
    • frame
    • packet
    • segment
    Correct
    

    Incorrect
    
15. Question 15 of 22

    15. Question

    1 points

    Which PDU is processed when a host computer is de-encapsulating a message at the transport layer of the TCP/IP model?

     

    • bits
    • frame
    • packet
    • segment
    Correct
    

    Incorrect
    
16. Question 16 of 22

    16. Question

    2 points

    Refer to the exhibit. HostA is attempting to contact ServerB. Which two statements correctly describe the addressing that HostA will generate in the process? (Choose two.)

    

     

    • A packet with the destination IP address of RouterB.
    • A frame with the destination MAC address of SwitchA.
    • A packet with the destination IP address of RouterA.
    • A frame with the destination MAC address of RouterA.
    • A packet with the destination IP address of ServerB.
    • A frame with the destination MAC address of ServerB.
    Correct
    

    Incorrect
    
17. Question 17 of 22

    17. Question

    1 points

    Which address does a NIC use when deciding whether to accept a frame?

     

    • source IP address
    • source MAC address
    • destination IP address
    • destination MAC address
    • source Ethernet address
    Correct
    

    Incorrect
    
18. Question 18 of 22

    18. Question

    1 points

    What will happen if the default gateway address is incorrectly configured on a host?

     

    • The host cannot communicate with other hosts in the local network.
    • The switch will not forward packets initiated by the host.
    • The host will have to use ARP to determine the correct address of the default gateway.
    • The host cannot communicate with hosts in other networks.
    • A ping from the host to 127.0.0.1 would not be successful.
    Correct
    

    Incorrect
    
19. Question 19 of 22

    19. Question

    1 points

    Which characteristic describes the default gateway of a host computer?

     

    • the logical address of the router interface on the same network as the host computer
    • the physical address of the switch interface connected to the host computer
    • the physical address of the router interface on the same network as the host computer
    • the logical address assigned to the switch interface connected to the router
    Correct
    

    Incorrect
    
20. Question 20 of 22

    20. Question

    3 points

    Match each description to its corresponding term. (Not all options are used.)

    

    Sort elements

    • message encoding
    • message encapsulation
    • message sizing

    • the process of converting information from one format into another acceptable for transmission

    • the process of placing one message format inside another message format

    • the process of breaking up a long message into individual pieces before being sent over the network

    Correct
    

     

    Incorrect
    
21. Question 21 of 22

    21. Question

    4 points

    Match the protocol function to the description while taking into consideration that a network client is visiting a web site. (Not all options are used.)

    

    Sort elements

    • governing the way a web server and a web client interact
    • talking the segments from the transport protocol, encapsulating them into packets, and assigning them with appropriate addresses
    • preparing packets to be transmitted over the network media
    • managing the individual conversation between web servers and web clients

    • application protocol

    • internet protocol

    • network access protocol

    • transport protocol

    Correct
    

    Incorrect
    
22. Question 22 of 22

    22. Question

    3 points

    Match the description to the organization. (Not all options are used.)

    

    Sort elements

    • The organization promotes the open development, evolution, and use of the internet throughout the world
    • This organization is the largest developer of international standars in the world for a wide variety of products and services. It is know for its Open System Interconection (OSI) reference model.
    • This organization is responsible for overseeing and managing IP address allocation, domain name management, and protocol identifiers

    • ISOC

    • ISO

    • IANA

    Correct
    

    Incorrect