Which of the following are true about IP address 172.16.99.45’s IP network? (Choose two answers.)

IT Questions BankCategory: CCNAWhich of the following are true about IP address 172.16.99.45’s IP network? (Choose two answers.)

Which of the following are true about IP address 172.16.99.45’s IP network? (Choose two answers.)

  • The network ID is 172.0.0.0.
  • The network is a Class B network.
  • The default mask for the network is 255.255.255.0.
  • The number of host bits in the unsubnetted network is 16.

Explanation: The first octet (172) is in the range of values for Class B addresses (128–191). As a result, the network ID can be formed by copying the first two octets (172.16) and writing 0s for the last two octets (172.16.0.0). The default mask for all Class B networks is 255.255.0.0, and the number of host bits in all unsubnetted Class B networks is 16.

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