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29 Cards in this Set
- Front
- Back
What happens if a host does not have a gateway
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Cannot connect to internet or any computers past broadcast range
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3 private address ranges
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10.0.0.0
172.16.0.0 192.168.0.0 |
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what is an address space
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range of addresses associated with a given address block.
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difference between a network and a subnet
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subnet refers to single broadcast domain. network can refer to a single subnet or a group of interconnected subnets.
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how many addresses in a /24 network
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256
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how many addresses in a /25 network
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128 addresses in a /25 network
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how many addresses in a /26 network
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64 addresses
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how many addresses in /23 network?
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512
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how many addresses in 255.255.248.0?
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equivalent to:
1111 1000 Thus, 11 bits available for hosts 2^11 are available. OR, knowing that 8 bits is 256, we go: 256*2=512 512*2=1024 1024*2=2048 Thus, there are 2048 addresses available |
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Does an address block get larger or smaller If the subnet mask is lengthened
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it will get smaller
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How many hosts for /20
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4096
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what is /20 in dotted decimal notation
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255.255.240.0
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/21
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255.255.248.0
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#hosts /21
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2048
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/22
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255.255.252.0
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#hosts /22
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1024
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/23
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255.255.254.0
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#hosts /23
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512
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/24
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255.255.255.0
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#hosts /24
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256
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/25
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255.255.255.128
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#hosts /25
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128
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/26
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255.255.255.192
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#hosts /26
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64
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/27
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255.255.255.224
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#hosts /27
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32
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/28
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255.255.255.240
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#hosts /28
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16
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How is host capacity determined
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subtract 2 from the total #hosts. 1 is for network and the other for is for broadcast
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