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Category > Computer Science Posted 26 Mar 2018 My Price 7.00

An autonomous system comprises networks

An autonomous system comprises networks 134.117.0/24 to 134.117.15/24.

1

(a) What is the total number of valid host identifiers in that autonomous system?

(explain your answer)

(b) What is the common prefix they share? (explain your answer, specify using

the slash notation)

 

My answer to this question is basically as follows: Since the 3rd octet in this network is 15 so we need 4 bits to represent 15 subnetworks and therefore, this leaves another 4 bits from the last octet for hosts. Therefore, we have 15 subnetworks with each can have up to 14 hosts (leave the 0's and 1's as reserve) so the total number of hosts in this system is 15*14 = 210 hosts. The common prefix they share is 134.117.0/28 Is this the right answer

 

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SophiaPretty
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Status NEW Posted 26 Mar 2018 02:03 PM My Price 7.00

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