A network administrator is configuring a prefix list to match networks for BGP route filtering. Which two networks match the prefix match specification 10.224.0.0/12 ge 24 le 28 ? (Choose two.)

Last Updated on April 27, 2021 by Admin

A network administrator is configuring a prefix list to match networks for BGP route filtering. Which two networks match the prefix match specification 10.224.0.0/12 ge 24 le 28 ? (Choose two.)

  • 10.224.10.0/12
  • 10.240.10.0/24
  • 10.230.15.0/24
  • 10.192.20.0/26
  • 10.239.255.240/28
    Answers Explanation & Hints:

    Prefix lists provide another method of identifying networks in a routing protocol. A prefix list identifies a specific IP address, network, or network range and allows for the selection of multiple networks with a variety of prefix lengths by using a prefix match specification. A prefix match specification contains two parts: a high-order bit pattern and a high-order bit count, which determines the high-order bits in the bit pattern that are to be matched. The high-order bit pattern is also known as the network address and the high-order bit count as the mask length. The network portion of the matching networks is 10.224.0.0 and higher. The mask length of the matching networks must be greater than or equal to /24 and less than or equal to /28.

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