CCNA 1 Chapter 2 V4.0 Answers Updated 2012

 1.During the encapsulation process, what occurs at the data link layer?
     No address is added.
     The logical address is added.
     The physical address is added.
     The process port number is added.
2.Which two layers of the OSI model have the same functions as the TCP/IP model Network Access Layer? (Choose two)
     Network
     Transport
     Physical
     Data Link
     Session
3.What is a primary function of the trailer information added by the data link layer encapsulation?
     supports error detection
     ensures ordered arrival of data 
     provides delivery to correct destination
     identifies the devices on the local network
     assists intermediary devices with processing and path selection 

4.Refer to the exhibit. Which set of devices contains only end devices?

A, C, D
B, E, G, H
C, D, G, H, I, J
D, E, F, H, I, J
E, F, H, I, J

5.Which statements correctly identify the role of intermediary devices in the network? (Choose three)
     determine pathways for data
     initiate data communications
     retime and retransmit data signals
     originate the flow of data
     manage data flows
     final termination point for data flow

6.Refer to the exhibit. Which term correctly identifies the device type that is included in the area B?

source
end
transfer
intermediary

7.What are two functions of encapsulation? (Choose two.)

     tracks delay between end devices

     enables consistent network paths for communication

     allows modification of the original data before transmission

     identifies pieces of data as part of the same communication

     ensures that data pieces can be directed to the correct receiving end device

8.Select the statements that are correct concerning network protocols. (Choose three.)

     define the structure of layer specific PDU's

     dictate how to accomplish layer functions

     outline the functions necessary for communications between layers

     limit the need for hardware compatibility

     require layer dependent encapsulations

     eliminate standardization among vendors

9.What is the purpose of the TCP/IP Network Access layer?

     path determination and packet switching

     data presentation

     reliability, flow control, and error detection

     network media control

     the division of segments into packets

10.What is the primary purpose of Layer 4 port assignment?

     to identify devices on the local media

     to identify the hops between source and destination

     to identify to the intermediary devices the best path through the network

     to identify the source and destination end devices that are communicating

     to identify the processes or services that are communicating within the end devices

11.Refer to the exhibit. "Cell A" at IP address 10.0.0.34 has established an IP session with "IP Phone 1" at IP address 172.16.1.103. Based upon the graphic, which device type best describes the function of wireless device "Cell A?"

     the destination device
     an end device
     an intermediate device
     a media device
 12.Refer to the exhibit. What type of network is shown?

     WAN
     MAN
     LAN
     WLAN

13.What is a PDU?

     corruption of a frame during transmission

     data reassembled at the destination

     retransmitted packets due to lost communication

     a layer specific encapsulation

14.Which characteristic correctly refers to end devices in a network?

     manage data flows

     originate data flow

     retime and retransmit data signals

     determine pathways for data

15.Which three statements best describe a Local Area Network (LAN)? (Choose three.)

     A LAN is usually in a single geographical area.

     The network is administered by a single organization.

     The connection between segments in the LAN is usually through a leased connection.

     The security and access control of the network are controlled by a service provider.

     A LAN provides network services and access to applications for users within a common organization.

     Each end of the network is generally connected to a Telecommunication Service Provider (TSP).

16.What is the proper order of the layers of the OSI model from the highest layer to the lowest layer?

     physical, network, application, data link, presentation, session, transport 

     application, physical, session, transport, network, data link, presentation 

     application, presentation, physical, session, data link, transport, network

     application, presentation, session, transport, network, data link, physical

     presentation, data link, session, transport, network, physical, application

17.What device is considered an intermediary device?

     file server

     IP phone

     laptop

     printer

     switch

18.What can be identified by examining the network layer header?

     the destination device on the local media

     the destination host address

     the bits that will be transferred over the media

     the source application or process creating the data

19.Which layer encapsulates the segment into packets?

     physical

    data link

    network

    transport

20.Refer to the exhibit. Which three labels correctly identify the network types for the network segments that are shown? (Choose three)

     Network A -- WAN
     Network B -- WAN
     Network C -- LAN
     Network B -- MAN
     Network C -- WAN
     Network A -- LAN

21.Refer to the exhibit. Which networking term describes the data interleaving process represented in the graphic?

     piping
     PDU
     streaming
     multiplexing
     encapsulation