WAN Q2

Card Set Information

Author:
kirin
ID:
167100
Filename:
WAN Q2
Updated:
2012-08-26 11:59:48
Tags:
WAN Quiz
Folders:

Description:
Wide Area Network Quiz 2 - PPP
Show Answers:

Home > Flashcards > Print Preview

The flashcards below were created by user kirin on FreezingBlue Flashcards. What would you like to do?


  1. Which three (3) statements decribe the functions of time-division multiplexing. (Choose three)

    A) Sources of data alternate during transmission and are reconstructed at the receiving end.
    B) Priority can be delicated to one data source.
    C) Statistical time-division multiplexing (STDM) was developed to overcome the inefficiency caused by time slots still being allocated, even when the channel has no data to transmit.
    D) Time slots are utilized based on a first-come-first-served basis
    E) Bit interleaving controls the timing mechanism that places data on the channel.
    F) Multiple data stream share one common channel.
    F) Multiple data stream share one common channel.    

    d) Statistical time-division multiplexing (STDM) was developed to overcome the inefficiency caused by time slots still being allocated, even when the channel has no data to transmit.    

    e) Sources of data alternate during transmission and are reconstructed at the receiving end.
    (this multiple choice question has been scrambled)
  2. What is the default encapsulation for serial interfaces on a Cisco router?

    A) X.25
    B) Frame Relay
    C) PPP
    D) HDLC
    D) HDLC
    (this multiple choice question has been scrambled)
  3. Place the PPP establishment steps in the correct order.

    Send link-establishment frames
    Send configuration-acknowledgement frames
    Test link quality (optional)  
    Negotiate Network protocol options
    Link goes into Open state
    • 1.Send link-establishment frames  
    • 2.Send configuration-acknowledgement frames
    • 3.Test link quality (optional)  
    • 4.Negotiate Network protocol options 
    • 5.Link goes into Open state
  4. What is the function of the protocol field in a PPP frame?

    A) It identifies the protocol encapsulated in the data field of the frame.
    B) It provides connectionless link service that does not require establishment of data links or link stations.
    C) It identifies the application layer protocol that will process the frame.
    D) It identifies the transport layer protocol that will process the frame.
    A) It identifies the protocol encapsulated in the data field of the frame
    (this multiple choice question has been scrambled)
  5. Match the LCP options configuration terms with the associated description.

    LCP Options:
    stacker/predictor 
    multilink 
    CHAP/PAP  
    Link Quality

    Descriptions:
    compression protocol  
    allow load balancing
    authentication protocol
    Monitoring error control
    • stacker/predictor => compression protocol
    • multilink => allow load balancing
    • CHAP/PAP  => authentication protocol
    • Link Quality => Monitoring error control
  6. If an authentication protocol is configured for PPP operation, when is the remote peer authenticated?

    A) prior to link establishment 
    B) during link establishment
    C) before NCP configuration process begins
    D) after NCP configuration process ends
    C) before NCP configuration process begins
    (this multiple choice question has been scrambled)
  7. Why are Network Control Protocols (NCP) used in PPP?

    A) to allow multiple Layer 3 protocols to operate over the same physical link
    B) to establish and terminate data links
    C) to provide authentication capabilities to PPP
    D) to manage network congestion and to allow quality testing of the link
    A) to allow multiple Layer 3 protocols to operate over the same physical link
    (this multiple choice question has been scrambled)
  8. Which statement describes the PAP authentication protocol?

    A) It requires the same username to be configured on both the peer routers
    B) It sends encrypted passwords by default
    C) It uses a two-way handshake to establish identity
    D) It protects against repeated trial-and-error attacks
    C) It uses a two-way handshake to establish identity
    (this multiple choice question has been scrambled)
  9. The network administrator is configuring Router1 to connect to Router2 using a three-way handshake authentication. Router2 is connected to Router1's serial 0/1/0 interface. Match the command necessary to configure Router1 to the appropriate description.

    Description:
    configure the username and password 
    enter interface configuration mode
    specify the encapsulation type
    configure authentication 

    Commands:
    username Router2 password dcpe
    username Router1 password dcpe
    interface serial 0/1/0
    interface serial 0/0/0
    encapsulation ppp
    encapsulation hdlc
    ppp authentication chap
    ppp authentication pap
    • configure the username and password
    • => username Router2 password dcpe

    • enter interface configuration mode
    • => interface serial 0/1/0

    • specify the encapsulation type
    • => encapsulation ppp

    • configure authentication
    • => ppp authentication chap
  10. What is required to succesfully establish a connection between two routers using CHAP authentication?

    A) The usernames of both routers must be the same.
    B) The ppp chap sent-username command must be configured the same on both routers.
    C) The hostname of both routers must be the same.
    D) The password configured with the username of the router must be the same on both routers.
    E) The enable secret passwords of both routers must be the same.
    D) The password configured with the username of the router must be the same on both routers.
    (this multiple choice question has been scrambled)

What would you like to do?

Home > Flashcards > Print Preview