MPLS overview

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Author:
piwi2024
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172325
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MPLS overview
Updated:
2012-09-23 18:59:56
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mpls overview introduction
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MPLS overview
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  1. Why is MPLS important for future telecomunications?

    A.-It has growing capabilites

    B.- Provides the infrastructure that allows the convergence of today's separate networks providing diferent services to end users.

    C.- New transport protocols are needed for high data rate.
    B.- Provides the infrastructure that allows the convergence of today's separate networks providing diferent services to end users.
  2. Does MPLS introduce fixed paths for IP packets and QoS capabilites? True or false
    True. MPLS introduce fixed paths for IP packets and QoS capabilites
  3. How many MPLS networks are require to support all services? (data, VoIP, TV.)
    Only one MPLS network, with the convergence of MPLS, you can have one network supporting all services (Voice, data, TV)
  4. What is MPLS?
    MPLS is a networking protocol (defining "label switching technology) it can be seen as an extension of IP
  5. What does MPLS being a toolbox mean?
    It has other services to provide all the solutions (IP, OSPF, ISIS, BGP, RSVP, LDP).
  6. What are the other protocols that MPLS has?
    • MPLS uses (6) protocols:
    • IP, OSPF, ISIS, BGP, RSVP, LDP
  7. What is LSP?
    Label switch paths, these are created on MPLS to move packets across the network.
  8. Why are LSP's created for?
    They guarantee that the packets are received in the same order as they were sent.LSP guarantee bandwidth as well so users with a "gold" service will have better quality of service
  9. What is used to separate the traffic from different application on MPLS?
    LSP, it helps to separate traffic from different application, for example, we can have the voice traffic in one path and data applications in a complete separated path.
  10. If MPLS can be consider as a toolbox, What are those tools?
    It uses (4) tools:

    •    -MPLS/IP
    •    -MPLS/TE
    •    -GMPLS
    •    -MPLS/TP
  11. What is MPLS/IP used for?
    IP services and IP forwarding
  12. What is MPLS/TE used for?
    • It's the traffic engineering extension
    • Enables support for real time application
    • Provides QoS
  13. What is GMPLS used for?
    Allows to have MPLS is a non-packet networks, such as optical and transport networks
  14. What is MPLS/TP used for?
    • It is "Transport profile",
    • Adds transport network feature into MPLS
    • Adds Resilience (resistance)
    • Performance monitoring for service level agreement verification
    • Carrier-grade provisioning capabilities
  15. What are the two benefits of deploying MPLS? (Choose 2)

    A.- Replace existing fiber
    B.- Replace IP protocol
    C.- Convergence of networks
    D.- Ability to offer new services
    • C.- Convergence of networks
    • D.- Ability to offer new services
  16. What two statements below can MPLS refer to? (Choose 2)

    A.- It is a broad term used to describe a set of protocols
    B.- It is an extension to the Ethernet protocol
    C.- It is a networking protocol 
    D.- IT is a networking management tool
    • A.- It is a broad term used to describe a set of protocols
    • C.- It is a networking protocol
  17. What do routers use to forward MPLS packets?

    A.- IP address
    B.- A label
    C.- MAC address
    D.- A tag
    B.- A label
    (this multiple choice question has been scrambled)
  18. Select two true statements about packet forwarding in IP networks (Choose 2)

    A.- End-to-end path is established before packet can be forwarded
    B.- Packets sent between two points must use the same path
    C.- Packets within the same session can follow different paths
    D.- Each router on a path takes independent forwarding decision
    • C.- Packets within the same session can follow different paths
    • D.- Each router on a path takes independent forwarding decision
  19. Select two true statements about packet forwarding in MPLS networks (Choose 2)

    A.- Packets within the same session can follow different paths
    B.- End-to-end path is established before packet can be forwarded
    C.- Packets belonging to the same session must use the same path
    D.- Each router on a path takes independent forwarding decision
    • B.- End-to-end path is established before packet can be forwarded
    • C.- Packets belonging to the same session must use the same path
  20. MPLS allows for running data, video and voice over the same network infrastructure, True or false?
    True
  21. Which two protocols below support MPLS deployments? (Choose 2)

    A.- RSVP
    B.- LDP
    C.- DHCP
    D.- ATM
    • A.- RSVP
    • B.- LDP
  22. MPLS guarantees correct order of packets at receiving end. true or false?
    True
  23. What is an LSP?

    A.- It is a path established between MPLS devices
    B.- It is a layer of the telecommunication network
    C.- It is a networking protocol
    A.- It is a path established between MPLS devices
    (this multiple choice question has been scrambled)
  24. Select a true statement about MPLS-TP

    A.- MPLS-TP is a new protocol standardized by ITU-T
    B.- MPLS-TP enables new IP service offerings
    C.- MPLS-TP adds OAM and Provisioning functionality to MPLS.
    C.- MPLS-TP adds OAM and Provisioning functionality to MPLS.
    (this multiple choice question has been scrambled)

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