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21 Cards in this Set
- Front
- Back
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Why do IP addresses need to be unique? |
It needs to be unique to ensure that data can be sent to and received from the correct network device |
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What are the two parts of an IP address? |
The first part identifies the network and the second part identifies a host on that network. |
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Which octets define the network and host of 192.168.18.57? |
The first three octets, 192.168.18, identify the network portion of the address, and the last octet, 57 identifies the host. |
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What is hierarchical addressing? |
It is where the network portion indicates the network on which each unique host address is located. |
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What is the first octet range for class A? |
1-127. 127.0.0.0 is reserved for testing and 127.0.0.1 is a loopback address |
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What is the first octet range for class B? |
128-191 |
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What is the first octet range for class C? |
192-223 |
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What is the first octet range for class D? |
224-240 |
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2 facts about Private networks |
Private networks have no connection to public networks and private network addresses are not routed across the Internet |
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Class A Private IPv4 address range |
10.0.0.0 to 10.255.255.255 |
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Class B Private IPv4 address range |
172.16.0.0 to 172.31.255.255 |
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Class C Private IPv4 address range |
192.168.0.0 to 192.168.255.255 |
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What is a subnet mask? |
A subnet mask is used to indicate the network and the host portion of an IP address |
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Default subnet masks for Class A, B, & C |
Class A 255.0.0.0 Class B 255.255.0.0 Class C 255.255.255.0 |
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What are the 3 special IP addresses? |
Loopback Address, Network Address, and Broadcast address |
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What is the loopback address? |
127.0.0.0 |
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What is the (special) network address? |
any ip address ending in 0's (this identifies the network) |
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What is a broadcast address? |
Any IP address ending in 255 |
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Class A Public IPv4 Range |
1.0.0.0 - 127.255.255.255 |
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Class B Public IPv4 Range |
128.0.0.0 - 191.255.255.255 |
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Class C Public IPv4 Range |
192.0.0.0 - 223.0.0.0 |
