This is a problem for extra credit, I have worked some of it on paper but since it is for extra credit I am unable to ask the professor or TA for assistance and I am unsure on some of the answers, google helped but didn't help me as much to reach a conclusion on some questions.
Problem No 1.
Given a Class A network and a number of subnets required, please indicate the following details in the table specified below.
Number of Bits to Borrow for the Subnet Field
Number of IP addresses available to be assigned to a host device per subnet
Subnet Mast in Binary Representation
Subnet Mask in Decimal Representation
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Number of Subnets Required
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Number of Bits to borrow for the Subnet Field
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Number of IP addresses available to be assigned to a host device per subnet
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Subnet Mask in Binary Representation
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Subnet Mask in Decimal Representation
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10
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20
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80
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400
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2000
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Your solution will be compared to a master solution. Each correct value in a cell earns one point. There are no partial credits. There are 20 cells in the table that need to be filled (20 points)
Problem No 2.
Assume that you have been assigned 192.168.111.129/28.
1. How many bits are borrowed to create the subnet field?
2. What is the maximum number of subnets that can be created with this number of bits?
3. How many bits can be used to create the host space?
4. What is the maximum number of possible IP addresses in the host space?
5. What is the maximum number of IP addresses that can be actually assigned to a host device in a subnet?
6. What is the subnet mask in binary representation?
7. What is the subnet mask in decimal representation?
8. Please complete the following table for the first 5 subnets
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Subnet Number
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Subnet Address
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Range of IP addresses that can be assigned to a host device
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Direct broadcast address
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9. What subnet is 192.168.111.49 on?
10. Can a junior network administrator assign 192.168.111.31 as a static IP address for a computer on the network?
Yes\No (
11. Can 192.168.111.64 be assigned as an IP address to a subnet?
Yes\No
(Source :- Adapted from Fitzgerald, J., Dennis, A. and Durcikova, A. Business Data Communications and Networking , Twelfth Edition, John Wiley & Sons, Inc.)