BGP Overview

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Author:
piwi2024
ID:
177435
Filename:
BGP Overview
Updated:
2012-10-13 20:34:33
Tags:
BGP ISIS OSPF IGP iBGP eBGP IP VPN L3VPN autonomous system prefix ipv4
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Description:
BGP Overview
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  1. BGP informs other Autonomous Systems about : (Multiple answers may apply)

    A.- Changes to ISP topology
    B.-  Adding/Removal of AS's
    C.- New users
    B.-  Adding/Removal of AS's
    (this multiple choice question has been scrambled)
  2. The number of IPv4 routing entries in the Internet is now around

    A.- 300,000
    B.- 100,000
    C.- Two billion
    A.- 300,000
    (this multiple choice question has been scrambled)
  3. Which of the following protocols are IGPs? (Multiple answers may apply)

    A.- ISIS
    B.- OSOS
    C.- ISPF
    D.- OSPF
    E.- IPv4
    F.- BGP
    G.- None of the above
    • A.- ISIS
    • D.- OSPF
  4. Why aren't IGP s used to connect Autonomous Systems? (Choose 3)

    A.- IGP s don’t scale very well
    B.- Routers running an IGP will constantly update each other when a link goes down
    C.- Routers will share all network information with other ISP s if connected through an IGP
    D.- IGP s are slow to converge
    E.- All of the above
    • A.- IGP s don’t scale very well
    • B.- Routers running an IGP will constantly update each other when a link goes down
    • C.- Routers will share all network information with other ISP s if connected through an IGP
  5. BGP uses what to create different service level agreements?

    A.- Routing policies
    B.- Routing neighbors
    C.- Routing tables
    A.- Routing policies
    (this multiple choice question has been scrambled)
  6. The performance of BGP is not affected by port flapping inside an Autonomous System

    A.- TRUE
    B.- None
    C.- FALSE
    A.- TRUE
    (this multiple choice question has been scrambled)
  7. What is the correct meaning of Port Flapping?

    A- The port is being reconfigured
    B.- The port is administratively shut down
    C.- The state of the port goes up and down multiple times
    C.- The state of the port goes up and down multiple times.
  8. What is the role of Transit Network?

    A.- Provides connectivity between VPN's
    B.- Allows traffic from other AS's to pass through itself.
    C.- Does not allow traffic between other AS's to flow through it.
    B.- Allows traffic from other AS's to pass through itself.
    (this multiple choice question has been scrambled)
  9. What is the role of Multihomed Network?

    A.- Allows traffic from other AS's to pass through itself.
    B.- Redundancy purposes, Does not allow traffic between other AS's to flow through it.
    C.- Provides connectivity between VPN's
    B.- Redundancy purposes, Does not allow traffic between other AS's to flow through it.
    (this multiple choice question has been scrambled)
  10. What is the role of MPLS Backbone?

    A.- Does not allow traffic between other AS's to flow through it.
    B.- Provides connectivity between VPN's
    C.- Allows traffic from other AS's to pass through itself.
    B.- Provides connectivity between VPN's
    (this multiple choice question has been scrambled)
  11. What is IP address used for?

    A.- Protocol used to define addressing
    B.- Used to identify a network
    C.- Used to identify and locate a device in an IP Network
    C.- Used to identify and locate a device in an IP Network
    (this multiple choice question has been scrambled)
  12. What is IP prefix used for?

    A.- Used to identify a network
    B.- Used to identify and locate a device in an IP Network
    C.- Protocol used to define addressing
    A.- Used to identify a network
    (this multiple choice question has been scrambled)
  13. What is IPv4 used to?

    A.- Protocol used to define addressing
    B.- Used to identify and locate a device in an IP Network
    C.- Used to identify a network
    A.- Protocol used to define addressing
    (this multiple choice question has been scrambled)

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