Datacom jobs 4

1. wants to set up a company set up an internal network, the company has seven departments (Department 1, Department 2 ...), now divided with private network addresses 192.168.3.0/24, to meet each department hosts use 27 how does the subnetting, write each subnet network number, broadcast address and host address range available

A: 192.168.3.0/24 192.168.3.0/24 to borrow three host bits becomes, it can be divided into eight subnets. Each subnet can be used for
        2 (32-27) = 30 th host used. Seven departments have chosen to divide out the first seven subnets can use.

  Network address broadcast address
	
a.192.168.3.0/27       192.168.3.31/27
	
b.192.168.3.32/27     192.168.3.63/27

c.192.168.3.64/27     192.168.3.95/27
	
d.192.168.3.96/27     192.168.3.127/27
	
e.192.168.3.128/27   192.168.3.159/27

f.192.168.3.160/27   192.168.3.191/27
	
g.192.168.3.192/27   192.168.3.223/27
	
h.192.168.3.224/27    192.168.3.255/27



Usable host address range
	
a.192.168.3.1/27       192.168.3.30/27
	
b.192.168.3.33/27     192.168.3.62/27
	
c.192.168.3.65/27     192.168.3.94/27
	
d.192.168.3.97/27     192.168.3.126/27
	
e.192.168.3.129/27   192.168.3.158/27
	
f.192.168.3.161/27   192.168.3.190/27
	
g.192.168.3.193/27   192.168.3.222/27
	 
h.192.168.3.225/27    192.168.3.254/27

2. The establishment of a company wants to set up an internal network, the company has three departments (sales, finance, technology department), the active segment 192.168.3.0/24 private address to be divided, to meet the 102 people Sales Department, Finance Department 10, technical section 53, how does the division of subnets, each subnet write network number, the broadcast address and host address range available

A: 192.168.3.0/24 a borrow bit to the host becomes 192.168.3.0/25, may be divided into two subnets, respectively,
        192.168.3.0/25 and 192.168.3.128/25.
 
        Wherein the subnetting 192.168.3.0/25 used for sales, 7 th power of 2 -2 = 126> 102, to meet the needs of the sales department.
        Network Address: 192.168.3.0/25 broadcast address: 192.168.3.127/25 available range of host addresses: 192.168.3.1/25--192.168.3.126/25
 
        192.168.3.128/25 subnet again by a host bits, can be divided into two sub 192.168.3.128/26 and 192.168.3.192/26.
        Each of these two subnetworks to provide power 6 -2 = 62 host addresses available 2> 53> 10. Meet the technical requirements and finance.
      
        ① network address: 192.168.3.128/26 
              Broadcast address: 192.168.3.191/26
              The available range of host addresses: 192.168.3.129/26--192.168.3.190/26
 
        ② Network Address: 192.168.3.192/26
              Broadcast address: 192.168.3.255/26
              The available range of host addresses: 192.168.3.193/26--192.168.3.254/26

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