Subnetting Workshop
1.
How many usable subnets (not theoretical) do you have when using a
subnet mask of 255.255.255.240 on Network ID 201.114.168?
Subnet : 255.255.255.240
Network : 201.114.168.0/28
Usable Host :
:
: 14
2.
You are given Network ID 222.72.157, with a subnet mask of
255.255.255.248 to setup. How many subnets and hosts will you have?
Subnet Mask : 255.255.255.248
Network : 222.72.157.0/29.
Subnet :
: 30
Host :
:
: 6
3.
You are assigned a Network ID of 198.162.10 and asked to configure
the network to provide at least six useable subnets with at least 25 hosts on
each subnet. What is the BEGINNING IP address of the LAST useable subnet in the
network?
Network ID : 198.162.10.0
Useable subnets : 6
Hosts on each subnet : 25
The number of bits borrowed : 6 < 2N – 2
: 3
Hosts :
: 30
|
NET ID
|
Host ID
|
|
|
198.162.10.
|
000
|
0
|
|
|
001
|
32
|
|
|
010
|
64
|
|
|
011
|
96
|
|
|
100
|
128
|
|
|
101
|
160
|
|
|
110
|
192
|
|
|
111
|
224
|
BEGINNING IP address of the
LAST useable subnet in the network : 198.162.10.193
4.
How many useable hosts are on each subnet when the Network ID is
199.215.210 and the subnet mask is 255.255.255.252?
Subnet Mask : 255.255.255.252
Network ID : 199.215.210.0/30
Useable Hosts :
:
: 2
5.
You are given Network ID 190.90, with a subnet mask of
255.255.192.0 to setup. What are the high-order bits (Leading Bit Values) for
this network?
|
Subnet Classes
|
||
|
Class
|
High Order Bits
|
First Octet Range
|
|
A
|
0
|
1 - 126
|
|
B
|
10
|
128 – 191
|
|
C
|
110
|
192 – 223
|
Jadi
urutan tertinggi dari bit adalah 10
6.
You
are assigned a Network ID of 162.160 and asked to configure the network to
provide at least 60 useable subnets? What would be the subnet mask for this
network?
Network ID : 162.160.0.0
Useable subnets : 60
The number of bits borrowed : 60
< 2N – 2
: 6
Subnet Mask : 255.255.252.0
7.
How
many useable hosts are on each subnet when the Network ID is 150.150 and the
subnet mask is 255.255.192.0?
Network ID : 150.150.0.0
Subnet Mask : 255.255.192.0
Useable hosts : 2( 32 - 18
) – 2
: 6.382
8.
You
are assigned a Network ID of 145.19 and asked to configure the network to
provide at least 100 useable subnets with at 500 hosts on each subnet. What is
the ENDING IP address of the EIGHTH useable subnet in the network?
Useable subnet : 100
Host : 500
The
number of bits borrowed : 100 ≤ 2N – 2 = 7
|
No.
|
Net ID
|
Host ID
|
|
|
1
|
145.19.
|
0 0 0 0 0 0 0
|
0. 0 0 0 0 0 0 0 0
|
|
2
|
|
0 0 0 0 0 0 1
|
2
|
|
3
|
|
0 0 0 0 0 1 0
|
4
|
|
4
|
|
0 0 0 0 0 1 1
|
6
|
|
5
|
|
0 0 0 0 1 0 0
|
8
|
|
6
|
|
0 0 0 0 1 0 1
|
10
|
|
7
|
|
0 0 0 0 1 1 1
|
14
|
|
8
|
|
0 0 0 1 0 0 0
|
16
|
|
9
|
|
0 0 0 1 0 0 1
|
18
|
ENDING
IP address : 145.19.17.254
9.
You
are a private contractor hired by the large company to setup the network for
their enterprise. The Network ID is 33 and you need at least 125 subnets in
their large network with at least 125,000 hosts on each of the subnets. What
would be the subnet mask for this network?
Network ID : 33.0.0.0
Subnets :
125
Hosts :
125.000
subnet mask : 125 ≤ 2N – 2
: 7
Subnet Mask Biner : 1 1 1 1 1 1 1 1. 1 1 1 1 1 1 1 0. 0 0 0 0 0 0 0 0. 0 0 0
0 0 0 0 0
Subnet Mask Decimal : 255.254.0.0
10.
You
are given Network ID 55.0.0.0, with a subnet mask of 255.240.0.0 to setup. How
many subnets and hosts will you have?
Subnet Mask : 255.240.0.0
Network ID : 55.0.0.0 / 12
Subnets : 12
= 8 + N
: 4
: 2( 32 - 28 ) – 2
: 14
Host : 2( 32 - 12 ) – 2
: 1048574
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