Cisco - CCNA 1 - Chapter 3 version 6.0 Exam Answers

• 1 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

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

  • broadcast
  • multicast
  • unicast
  • allcast

• 3 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

• 4 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

• 5 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.

• 6 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.

• 7 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.

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

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

• 9 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

• 10 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.

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

  
  

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  • 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

• 12 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

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

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

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

  • file
  • frame
  • packet
  • segment

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

  
  

  CCNA1 Chapter 3 v5.1 003
  • 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.

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

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• 21 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.)

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

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