37 lines
916 B
Markdown
37 lines
916 B
Markdown
# Midterm Sample Questions
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Difference between NAS and SAN?
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Subnet:
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* What kind of class is the given IP?
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* What is the subnet mask, network address, etc?
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* Subnet addresses?
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`Host & subnet mask(classless)`
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BTW: this is the analog of the network address(classful addressing). When we talk about network addresses we are implying a classful network.
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* Subnet bits
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i.e. 21 => 8+8+5+0 <= `5` is the odd one out so we have _5 subnet bits_
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* VLSM - Variable Length Subnet Mask
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Suppose we want to assign addresses to the following networks with x many hosts.
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A:600; B:1000; C:200
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`150.180.0.0/16`
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`150.181.0.0/16`
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Start with the largest network B : requires 1000 hosts.
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Hosts part requires 10 bits so we have an IP/22.
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Network address then is (subnet address)150.180.0.0/22 - (broadcast address)150.180.3.255/22
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**NOTE:** I included both the subnet(network) address and the broadcast for sake of brevity.
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