CCNA 1 Chapter 3 v5.1 Exam Answers 2018 (100%)

CCNA 1 v5.1 Chapter 3 Exam Answers 2017

  1. 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
  2. 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 all function in the network access layer of TCP/IP.
    • They are only required for exchange of messages between devices on remote networks.
    • They define how messages are exchanged between the source and the destination.
  3. 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.
  4. What is an advantage of using standards to develop and implement protocols?
    • Products from different manufacturers can interoperate successfully.
    • A particular protocol can only be implemented by one manufacturer.
    • 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.
  5. 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
  6. What three application layer protocols are part of the TCP/IP protocol suite? (Choose three.)
    • ARP
    • DHCP
    • DNS
    • FTP
    • NAT
    • PPP
  7. 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 RouterA.
    • A packet with the destination IP address of ServerB.
    • 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 ServerB.
  8. 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.
  9. 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
  10. At which layer of the OSI model would a logical address be encapsulated?
    • physical layer
    • data link layer
    • network layer
    • transport layer
  11. What are proprietary protocols?
    • protocols developed by organizations who have control over their definition and operation
    • protocols developed by private organizations to operate on any vendor hardware
    • protocols that can be freely used by any organization or vendor
    • a collection of protocols known as the TCP/IP protocol suite
  12. Which PDU format is used when bits are received from the network medium by the NIC of a host?
    • file
    • frame
    • packet
    • segment
  13. 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
  14. What type of communication will send a message to all devices on a local area network?
    • broadcast
    • multicast
    • unicast
    • allcast
  15. 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
  16. 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
    • application, transport, Internet, and network access layers
    • only Internet and network access layers
    • only application, Internet, and network access layers
    • application, session, transport, network, data link, and physical layers
    • only application, transport, network, data link, and physical layers
  17. 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
  18. 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 would not be successful.
  19. 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
  20. 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.)

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


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

    message encoding  >>  the process of converting information from one format into another acceptable for transmission

    message encapsulation  >> the process of placing one message format inside another message format

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

  22. Match the description to the organization. (Not all options are used.)
    ab8ISOC >> The organization promotes the open development, evolution, and use of the internet throughout the world
    ISO >> 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.
    IANA >> This organization is responsible for overseeing and managing IP address allocation, domain name management, and protocol identifiers