BGP Fundamentals

Card Set Information

Author:
piwi2024
ID:
178644
Filename:
BGP Fundamentals
Updated:
2012-10-20 21:38:11
Tags:
BGP OSPF ISIS IP
Folders:

Description:
BGP Fundamentals
Show Answers:

Home > Flashcards > Print Preview

The flashcards below were created by user piwi2024 on FreezingBlue Flashcards. What would you like to do?


  1. What protocols are used to connect AS's in the internet today?

    A.- EGP
    B.- BGP
    C.- ISIS
    B.- BGP
    (this multiple choice question has been scrambled)
  2. What are the two ways of instructing a router to exchange prefixes?

    A.- Redistribute and Network Statements
    B.- Network Statements
    C.- Contribute
    D.- Redistribute
    E.- Prefix Statements
    F.- Distribute
    A.- Redistribute and Network Statements
    (this multiple choice question has been scrambled)
  3. Why aren't IGP's used to connect Autonomous Systems? (Multiple answers may apply)

    A.- IGP's do not scale very well
    B.- Routers will constantly update each other when a link goes down when using IGP routing
    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 do not scale very well
    • B.- Routers will constantly update each other when a link goes down when using IGP routing
    • C.- Routers will share all network information with other ISP's if connected through an IGP
  4. The Notification message exchanges routing information

    A.- None
    B.- True
    C.- False
    C.- False
    (this multiple choice question has been scrambled)
  5. If there is no error condition present, the peer state will travel through the "Active" state

    A.- None
    B.- True
    C.- False
    C.- False
    (this multiple choice question has been scrambled)
  6. The number of IPv4 routing entries in the internet is now around

    A.- two billion
    B.- 300,000
    C.- 100,000
    B.- 300,000
    (this multiple choice question has been scrambled)
  7. BGP stands for:

    A.- Broadband Gateway Protocol
    B.- Border Gateway Protocol
    C.- Basic Gateway Protocol
    B.- Border Gateway Protocol
    (this multiple choice question has been scrambled)
  8. What type of message is sent in the "Connect" state

    A.- Update
    B.- OPEN message
    C.- KEEPALIVE message
    B.- OPEN message
    (this multiple choice question has been scrambled)
  9. Match Port Flapping with its definition

    A.- The port is being re-configured
    B.- The state of the port goes up and down multiple times
    C.- The port is administratively shut down
    B.- The state of the port goes up and down multiple times
    (this multiple choice question has been scrambled)
  10. Which of these are states in the BGP peering process? (Multiple answers may apply)

    A.- Connect
    B.- Active
    C.- OpenReceived
    D.- OpenSent
    E.- Lazy
    F.- Ready
    • A.- Connect
    • B.- Active
    • D.- OpenSent
  11. BGP can be described as a very _________ protocol.

    A.- Chatty
    B.- Selective
    C.- Fast Converging
    B.- Selective
    (this multiple choice question has been scrambled)
  12. BGP uses what process to establish peers?

    A.- Finite Estate Machine
    B.- Finite State Machine
    C.- Definite Estate Machine
    D.- Definite State Machine
    B.- Finite State Machine
    (this multiple choice question has been scrambled)
  13. Which of these attributes prefer a higher value? (Multiple answers may apply)

    A.- MED
    B.- Local_Preference
    C.- Router ID
    D.- Weight
    E.- Number of AS-Paths
    • B.- Local_Preference
    • D.- Weight
  14. Private IP prefixes should be advertised by BGP routers into the internet.

    A.- True
    B.- None
    C.- False
    C.- False
    (this multiple choice question has been scrambled)
  15. KEEPALIVE messages are sent between which two states?

    A.- CONNECT
    B.- ESTABLISHED
    C.- LAZY
    D.- OPENCONFIRM
    E.- OPENSENT
    • B.- ESTABLISHED
    • D.- OPENCONFIRM
  16. OPEN messages are sent from which two states?

    A.- ACTIVE
    B.- OPENSENT
    C.- OPENRECEIVED
    D.- OPENCONFIRM
    E.- CONNECT
    • A.- ACTIVE
    • B.- OPENSENT
  17. What might be the error conditions for not progressing to the OPENCONFIRM state?

    A.- If no OPEN message is received back
    B.- If the BGP versions do not match
    C.- AS mis-configured
    D.- If the timer expires before receiving a return KEEPALIVE message
    E.- All of the above
    • A.- If no OPEN message is received back
    • B.- If the BGP versions do not match
    • C.- AS mis-configured
  18. Adding BGP using Network Statement will ________ prefix sharing

    A.- Permit
    B.- Deny
    C.- Filter
    A.- Permit
    (this multiple choice question has been scrambled)
  19. Which of the below protocols are IGP's (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
  20. What port does BGP use to communicate with peers?

    A.- UDP 179
    B.- TCP 279
    C.- TCP 79
    D.- TCP 179
    E.- UDP 279
    D.- TCP 179
    (this multiple choice question has been scrambled)
  21. BGP spends a long time in the "Connect" state.

    A.- None
    B.- False
    C.- True
    B.- False
    (this multiple choice question has been scrambled)
  22. By default BGP peers require direct IP connection.

    A.- FALSE
    B.- None
    C.- TRUE
    C.- TRUE
    (this multiple choice question has been scrambled)
  23. BGP routers will exchange prefix information with peers without being configured to do so.

    A.- FALSE
    B.- TRUE
    C.- None
    A.- FALSE
    (this multiple choice question has been scrambled)
  24. If the CONNECT state experiences a problem it moves to which state:

    A.- READY
    B.- OPENCONFIRM
    C.- OPENSENT
    D.- ACTIVE
    E.- IDLE
    D.- ACTIVE
    (this multiple choice question has been scrambled)
  25. What are the possible error reasons that might occur when peering is trying to reach the "Connect" state? (Multiple answers may apply)

    A.- AS number is configured
    B.- Wrong configuration of neighbor address
    C.- Particular TCP port number blocked
    D.- Inbound BGP connection attempts are being refused
    E.- Particular UDP port number blocked.
    • B.- Wrong configuration of neighbor address
    • C.- Particular TCP port number blocked
  26. What are the main reasons why it is recommended to summarize prefixes advertised by a BGP router? (Multiple answers may apply)

    A.- To reduce the amount of Internet routing table entries
    B.- To reduce the time it takes for BGP to converge
    C.- To stabilize Internet routing tables
    D.- To reduce processing on BGP routers globally
    E.- To remove the impact of port flapping
    F.- All of the above
    F.- All of the above
  27. What type of protocol does IGP is?

    A.- Path Vector Protocol
    B.- Link State Protocol
    C.- Distance Vector Protocol
    C.- Distance Vector Protocol
    (this multiple choice question has been scrambled)
  28. What type of protocol does BGP is?

    A.- Distance Vector Protocol
    B.- Link State Protocol
    C.- Path Vector Protocol
    C.- Path Vector Protocol
    (this multiple choice question has been scrambled)
  29. What type of protocol does RIP is?

    A.- Link State Protocol
    B.- Path Vector Protocol
    C.- Distance Vector Protocol
    A.- Link State Protocol
    (this multiple choice question has been scrambled)
  30. What is the definition of IP Address?

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

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

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

What would you like to do?

Home > Flashcards > Print Preview