Answer / niraj mishra

Hello friends,
When you are talking about /20, that means the host derived
from 3rd octet, the subnet in binary will as
11111111.11111111.11110000.00000000
so in third octet 1 start from 16 position so block size
will 16, now if we have given the ip 173.16.20.0/20, so it
means that it belongs to the network 173.16.16.0 and
possible ip address will as 172.16.16.1 to 172.16.16.30,
because 172.16.16.31 will broadcast address.

In other word we can say that we just have to check block
size in appropriate octet, which will the proper network
address..... please reply am i right

Answer / satyendra kumar

we see the first octet of the IP.which shows the network id .

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Hey Folks how are you i guess some of guys are newly visitors of this site so let me introduce my self. I am jitendera kumar sinha working for cisco system (india)( Network engineer L2) and i was also a regular Visitors of this site and i have provided lots of answer and i do not know how many are correct :-) By the way i am here again to learn some thing and share my knowledge which is beyond CCNA Scope and and it is some where related to ccnp ( switching )and ccnp Security as i am pursuing ccnp security so i am going to start the topics from switching and will share my knowledge and try to brush-up my knowledge.... so let me know any topic in switching where you are facing difficulty and i will try to solve it so please post one topic and i will reply weekly as i am getting time on Sunday only

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What is HDLC?

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