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You have a network that needs 29 subnets while maximizing the number of host addresses available on each subnet. How many bits must you borrow from the host field to provide the correct subnet mask?
- a)2
- b)3
- c)4
- d)5
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
You have a network that needs 29 subnets while maximizing the number o...
A 240 mask is 4 subnet bits and provides 16 subnets, each with 14 hosts. We need more subnets, so let's add subnet bits. One more subnet bit would be a 248 mask. This provides 5 subnet bits (32 subnets) with 3 host bits (6 hosts per subnet). This is the best answer.
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Most Upvoted Answer
You have a network that needs 29 subnets while maximizing the number o...
To determine the number of bits that must be borrowed from the host field to provide the correct subnet mask, we need to consider the number of subnets required and the desired number of host addresses on each subnet.
Given:
Number of subnets required = 29
To find the number of bits required, we can use the formula:
Number of bits = log2(Number of subnets)
Let's calculate:
Number of bits = log2(29)
= 4.857
Since we cannot have a fraction of a bit, we need to round up to the nearest whole number. Therefore, we need to borrow 5 bits from the host field to provide the correct subnet mask.
Explanation:
- The number of subnets required is given as 29.
- To determine the number of bits required, we use the formula log2(Number of subnets).
- By plugging in the value, we find that the number of bits required is 4.857.
- Since we cannot have a fraction of a bit, we need to round up to the nearest whole number.
- Therefore, we need to borrow 5 bits from the host field to provide the correct subnet mask.
- This will allow us to create 2^5 (32) subnets, which is more than the required 29 subnets.
- By borrowing 5 bits, we increase the number of available subnets, but at the same time, we decrease the number of available host addresses per subnet.
- The number of available host addresses per subnet will be 2^(number of borrowed bits) - 2.
- In this case, it will be 2^5 - 2 = 30 host addresses per subnet.
Given:
Number of subnets required = 29
To find the number of bits required, we can use the formula:
Number of bits = log2(Number of subnets)
Let's calculate:
Number of bits = log2(29)
= 4.857
Since we cannot have a fraction of a bit, we need to round up to the nearest whole number. Therefore, we need to borrow 5 bits from the host field to provide the correct subnet mask.
Explanation:
- The number of subnets required is given as 29.
- To determine the number of bits required, we use the formula log2(Number of subnets).
- By plugging in the value, we find that the number of bits required is 4.857.
- Since we cannot have a fraction of a bit, we need to round up to the nearest whole number.
- Therefore, we need to borrow 5 bits from the host field to provide the correct subnet mask.
- This will allow us to create 2^5 (32) subnets, which is more than the required 29 subnets.
- By borrowing 5 bits, we increase the number of available subnets, but at the same time, we decrease the number of available host addresses per subnet.
- The number of available host addresses per subnet will be 2^(number of borrowed bits) - 2.
- In this case, it will be 2^5 - 2 = 30 host addresses per subnet.
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You have a network that needs 29 subnets while maximizing the number of host addresses available on each subnet. How many bits must you borrow from the host field to provide the correct subnet mask?a)2b)3c)4d)5Correct answer is option 'D'. Can you explain this answer?
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