QUESTION 3 [10 marks|(Topic: IP Addressing) An organization is granted the block

Question

QUESTION 3 [10 marks|(Topic: IP Addressing) An organization is granted the block 130.56.0.0 in class B. The administrator wants to create 16 subnets Find the subnet mask and list all the subnets. List some host addresses in the first subnet Find the number of addresses in each subnet. Find the broadcast address of the first subnet Note: i. To determine subnet id X: Determine subnet #0 and subnet #1. Increase the subnet ids in the increasing order in multiples of subnet #1 address till you reach all 1s subnet id. In your count of subnet ids include the all Os and the all Is subnet ids.

Explanation / Answer

Question 3
1) Subnet mask = 255.255.240.0
2) some host in first subnet are:-
130.56.1.1
130.56.1.254
130.56.14.1
3) number of address in each subnet= 4094
4) broadcast address of first subnet= 130.56.15.255
no of subnet = 16
#0 130.56.0.0
#1 136.56.16.0
#2 136.56.32.0
#3 136.56.48.0
#4 136.56.64.0
#5 136.56.80.0
#6 136.56.96.0
#7 136.56.112.0
#8 136.56.128.0
#9 136.56.144.0
#10 136.56.160.0
#11 136.56.176.0
#12 136.56.192.0
#13 136.56.208.0
#14 136.56.224.0
#15 136.56.240.0

QUESTION 4:

130.140.0.0/19
255.255.0.0
Block size 32

Network : 130.140.0.0/19
Netmask : 255.255.224.0
Host/Net : 8190
subnets :
#0 130.140.0.0
#1 130.140.32.0
#2 130.140.64.0
#3 130.140.96.0
#4 130.140.128.0
#5 130.140.160.0
#6 130.140.192.0
#7 130.140.224.0

8 subnets of #3
#0 130.140.64.0
#1 130.140.72.0
#2 130.140.80.0
#3 130.140.88.0

8 subnets mask of first level are:
#0 130.140.0.0
#1 130.140.4.0
#2 130.140.8.0
#3 130.140.12.0
#4 130.140.16.0
#5 130.140.20.0
#6 130.140.24.0
#7 130.140.28.0

4 sub-subnet at second level
#0 130.140.32.0
#1 130.140.40.0
#2 130.140.48.0
#3 130.140.56.0

Question 5

The router will select static path to send the packet to the destination because it chooses static route first because it is given by the network administrator . The priority of static route comes first.When the hop count of dynamic route is less than the static route's hop count then the preferred route becomes dynamic route.

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