Binary Math Practice Problems and Answers
1. Complete the conversion of the binary octet to its corresponding decimal number.
|
128 |
64 |
32 |
16 |
8 |
4 |
2 |
1 |
Decimal Number |
|
0 |
1 |
1 |
1 |
0 |
0 |
1 |
0 |
|
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1 |
1 |
0 |
0 |
0 |
0 |
0 |
0 |
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1 |
1 |
1 |
1 |
1 |
1 |
1 |
0 |
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1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
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0 |
1 |
0 |
0 |
0 |
0 |
1 |
0 |
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0 |
0 |
0 |
1 |
0 |
0 |
0 |
1 |
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1 |
1 |
1 |
0 |
0 |
1 |
0 |
1 |
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1 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
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1 |
1 |
1 |
0 |
0 |
0 |
0 |
0 |
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1 |
1 |
1 |
1 |
0 |
0 |
0 |
0 |
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2. Complete the conversion of the decimal number to its corresponding binary octet.
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128 |
64 |
32 |
16 |
8 |
4 |
2 |
1 |
Decimal Number |
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248 |
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123 |
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7 |
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22 |
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169 |
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252 |
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224 |
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99 |
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224 |
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255 |
IP Addressing Practice Problems
3. Identify the address class (e.g., A, B or C) of the following addresses.
Review: Address classes A, B, and C
|
Addresses |
Class A, B, or C? |
|
210.23.67.102 |
|
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66.23.148.0 |
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158.23.251.33 |
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144.23.117.254 |
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192.254.23.123 |
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144.207.78.1 |
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63.125.23.211 |
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192.25.128.36 |
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128.12.254.98 |
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134.223.156.89 |
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127.0.0.1 |
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224.23.108.23 |
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223.78.27.144 |
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77.123.28.167 |
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191.249.222.234 |
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19.23.12.255 |
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188.67.76.235 |
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134.255.123.22 |
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143.52.213.212 |
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207.22.45.219 |
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117.117.117.117 |
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193.23.255.77 |
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199.23.255.7 |
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145.2.229.252 |
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238.23.177.8 |
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4. Highlight the corresponding ID in the provided addresses.
Review: Address Classes A, B, and C
|
Instructions |
Address |
|
Highlight the Network ID |
1.102.45.177 |
|
Highlight the Host ID |
196.22.177.13 |
|
Highlight the Network ID |
133.156.55.102 |
|
Highlight the Host ID |
221.252.77.10 |
|
Highlight the Network ID |
123.12.45.77 |
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Highlight the Host ID |
126.252.77.103 |
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Highlight the Network ID |
13.1.255.102 |
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Highlight the Host ID |
171.242.177.109 |
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Highlight the Network ID |
193.156.155.192 |
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Highlight the Host ID |
21.52.177.188 |
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Highlight the Network ID |
77.77.45.77 |
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Highlight the Host ID |
191.252.77.13 |
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Highlight the Network ID |
191.15.155.2 |
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Highlight the Host ID |
221.252.117.254 |
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Highlight the Network ID |
203.10.233.1 |
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Highlight the Host ID |
191.2.227.19 |
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Highlight the Network ID |
23.156.1.92 |
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Highlight the Host ID |
121.2.199.88 |
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Highlight the Network ID |
202.27.189.177 |
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Highlight the Host ID |
177.222.177.28 |
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Highlight the Network ID |
198.215.67.233 |
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Highlight the Host ID |
128.252.17.24 |
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Highlight the Network ID |
212.199.19.29 |
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Highlight the Host ID |
159.255.17.218 |
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Highlight the Network ID |
155.25.169.133 |
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Highlight the Host ID |
191.255.217.227 |
5. Many of these addresses cannot be used as a client’s address because they are a Network Address, a Broadcast Address, a Class D or E address, or are invalid.
Identify the type of address under the column “Type”
Decide whether or not it is a valid address for a client machine under the column “Valid / Not Valid”
Example:
|
Address |
Type |
Valid / Not Valid |
|
245.12.33.102 |
Class E |
Not Valid |
|
123.123.123.123 |
Class A |
Valid |
Review of Addressing Rules:
- Valid Binary Converted Decimal Numbers
- Class A, B and C Address Ranges
- Complete Network ID or Host ID cannot be all 0’s or 1’s (in binary).
|
Address |
Type |
Valid / Not Valid |
|
199.23.107.255 |
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199.23.107.0 |
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156.266.12.103 |
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99.0.0.12 |
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153.0.0.0 |
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153.0.0.255 |
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191.23.255.255 |
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33.255.255.0 |
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12.0.0.0 |
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12.255.255.255 |
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12.0.0.255 |
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127.0.0.1 |
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127.23.109.122 |
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0.23.12.122 |
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192.12.255.102 |
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191.105.0.0 |
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203.123.45.255 |
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204.0.23.198 |
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224.56.204.112 |
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223.255.255.254 |
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126.0.0.1 |
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177.45.123.255 |
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186.255.0.255 |
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