10011000
1010100
10001111100
1011100101011100
101100011101001
1011110100011010
00001010010110010
1001010101100111
1111010101000101
1101001101010011
001010010101010
1010101000110010
010101001011000
110101100011010
11010100001011
001010100110
1001010010
IP Addressing and Subnetting
Workbook
Version 1.1
11111110
10010101
00011011
11010011
10000110
IP Address Classes
Class A
1 – 127
(Network 127 is reserved for loopback and internal testing)
00000000.00000000.00000000.00000000
Leading bit pattern
0
Network .
Host
.
Host
.
Host
Class B
128 – 191
Leading bit pattern
10
10000000.00000000.00000000.00000000
Class C
192 – 223
Leading bit pattern
110
11000000.00000000.00000000.00000000
Class D
224 – 239
(Reserved for multicast)
Class E
240 – 255
(Reserved for experimental, used for research)
Network .
Network .
Network .
Network
Private Address Space
Class A
10.0.0.0 to 10.255.255.255
Class B
172.16.0.0 to 172.31.255.255
Class C
192.168.0.0 to 192.168.255.255
Default Subnet Masks
Class A
255.0.0.0
Class B
255.255.0.0
Class C
255.255.255.0
Produced by: Robb Jones jonesr@careertech.net Frederick County Career & Technology Center
Cisco Networking Academy
Frederick County Public Schools
Frederick, Maryland, USA
Special Thanks to Melvin Baker and Jim Dorsch for taking the time to check this workbook for errors.
Inside Cover
Host
. Network
.
.
Host
Host
Binary To Decimal Conversion
128 64
32
16
8
4
2
1
Answers
1
0
0
1
0
0
1
0
146
0
1
1
1
0
1
1
1
119
1
1
1
1
1
1
1
1
1
1
0
0
0
1
0
1
1
1
1
1
0
1
1
0
0
0
0
1
0
0
1
1
1
0
0
0
0
0
0
1
0
0
1
1
0
0
0
1
0
1
1
1
1
0
0
0
1
1
1
1
0
0
0
0
0
0
1
1
1
0
1
1
0
0
0
0
0
1
1
1
Scratch Area
128
16
2
146
64
32
16
4
2
1
119
00011011
10101010
01101111
11111000
00100000
01010101
00111110
00000011
11101101
11000000
1
Decimal To Binary Conversion
Use all 8 bits for each problem
128 64
32
16