madeeasy test series

Question

answer given as 255.255.255.254  how it is correct please check??

Comments

eyeamgj i dont even get this concept in this question means how approach how they do what they do .......plss share ur view .......

 

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This question is wrong, the network cannot be configured with class $C$ hosts, maximum hosts can be $254$ which is less than the requirement in only $Y$ which needs $512$ hosts.

Also DBA has all network id bits as it is and the host bits are 1.

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see this what is wrong ? In this so

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never seen of borrowing, can't confirm if it is valid, if we can use it then it's simple, still 255.255.255.254 can't be true. we need network bits as it is.

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ok but check solution I commented it is correct or not.

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yes i think is ok, you have $9$ bits for host so $510$ hosts required also $510$. Should be ok. DBA only hosts bits are $1$. Should be ok.