TELE33324 Study Guide - Midterm Guide: Classless Inter-Domain Routing, Loopback, Broadcast Address

• School: Sheridan College
• Department: Data Communications
• Course: TELE33324
• Professor: De Almeida

Document Summary

The answered are besides the question in red: what is the number of subnet bits and host bits in each of the following, class a with length of subnet-id = 15 bits (7, 17) To find the number of subnet bits, subtract the length of the subnet id(15) from 32. A class a network has a length of so 8 and there are (cid:1011) su(cid:271)(cid:374)et (cid:271)its i(cid:374) the se(cid:272)o(cid:374)d o(cid:272)tet of the su(cid:271)(cid:374)et (cid:373)ask lea(cid:448)i(cid:374)g (cid:1011) su(cid:271)(cid:374)et bits: class b with length of subnet-id = 20 bits (4, 12) The number of subnet bits is 32-20=12, so 12 bits for the host id. A class b network has a le(cid:374)gth of (cid:1005)(cid:1010), so (cid:449)ith t(cid:449)o o(cid:272)tets full, there are (cid:1008) (cid:271)its left for su(cid:271)(cid:374)etti(cid:374)g (cid:449)ith (cid:1006)(cid:1004)-16=4: class c with length of subnet-id = 25 bits (1, 7) The length of the subnet id is given by the cidr notation, the subnet id is 16 bits.