Subnetting Questions Answers

• 1. Default network mask for CLASS A is

  1. 255.0.0.0
  2. 255.255.0.0
  3. 255.255.255.0
  4. 255.255.255.255

  Answer And Explanation

  Answer: Option A

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• 2. Default network mask for CLASS B is

  1. 255.0.0.0
  2. 255.255.0.0
  3. 255.255.255.0
  4. 255.255.255.255

  Answer And Explanation

  Answer: Option B

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• 3. Default network mask for CLASS C is

  1. 255.0.0.0
  2. 255.255.0.0
  3. 255.255.255.0
  4. 255.255.255.255

  Answer And Explanation

  Answer: Option C

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• 4. What is the maximum number of IP addresses that can be assigned to hosts on a local subnet that uses the 255.255.255.224 subnet mask

  1. 14
  2. 15
  3. 30
  4. 62

  Answer And Explanation

  Answer: Option C

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• 5. To test the IP stack on your local host, which IP address will you ping

  1. 127.0.0.0
  2. 1.0.0.127
  3. 127.0.0.1
  4. 255.255.255.0

  Answer And Explanation

  Answer: Option C

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• 6. You need to subnet a network that has 5 subnets, each with at least 16 hosts. Which can be your choise

  1. 255.255.255.192
  2. 255.255.255.224
  3. 255.255.255.240
  4. 255.255.255.248

  Answer And Explanation

  Answer: Option B

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• 7. What is the subnetwork number of a host with an IP address of 172.16.66.0/21

  1. 172.16.64.0
  2. 172.16.48.0
  3. 172.16.36.0
  4. 172.16.0.0

  Answer And Explanation

  Answer: Option A

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