what is the subnet mask of a prefix of 26 How you obtain tha

what is the subnet mask of a prefix of 26? How you obtain that subnet mask?

Describe a prefix length and its used to identify networks.

Descibe the ISP Tiers, classification and purposes

Solution

=>a subnetmask is subdivision of an ip netewrok logically.this process of dividing the network into more netwoks
is called subnetting

=>with a prefix 26 the subnet mask is 255.255.255.192 and we can have four subnets,and we can use 62 host per each subnet

to find the subnet in your computer (windows)
1)open command prompt
2)type command ipconfig/all

to find the subnet mask in mac
1) go to system preferences
2)network
3)if you connected to wifi then click the advanced button
and click configure ipv4 the you will see subnet mask

*********************************************************************************
Prefix length :it is the shortest way to express the subnet mask, it is the count of bits set in the subnet mask.
for example if the prefix length is 255.255.255.0 the prefix length is 24.these prefix length are used to find networks

***********************************************************************************

tier : it means arranging of similar objects in a series

=>we have three isp tires
tire1: it can reach every other network on internet with out buying any ip transit
tire2: it is a network in which it is peered to some other netwroks,but it will purchases ip transits and it buys
to get some portion of internet
tire3:it is a network purchase by other networks to reach internet