01
Front
How many bits are in an IPv4 address?
Back
An IPv4 address contains bits.
Free Online Flashcard Deck
2 Network Ranges and Usable Hosts Free Online FlashCards
Study 2 Network Ranges and Usable Hosts with 12 free online flashcards. Review key terms, definitions, and concepts with this interactive flashcard deck.
12 cards
02
Front
What does an IPv4 CIDR prefix length specify?
Back
It specifies how many leading bits identify the network; the remaining bits identify addresses within that network.
03
Front
How do you determine a subnet's network address?
Back
Set all host bits to 0.
04
Front
How do you calculate total addresses for prefix length p?
Back
For prefix length p, the block contains 232−p total addresses.
05
Front
How do you calculate usable hosts on an ordinary subnet?
Back
For conventional prefixes from /0 through /30, subtract 2 from the total: the network and broadcast addresses are reserved.
06
Front
How is subnet block size found from the mask?
Back
In the octet where the mask is less than 255, block size is 256−mask value.
07
Front
What is the network address for 192.168.10.77/26?
Back
The /26 subnet containing 192.168.10.77 starts at 192.168.10.64.
08
Front
How many usable hosts does a /26 subnet have?
Back
It has 6 host bits and 26=64 total addresses, so it supports 62 usable hosts.
09
Front
How are the two addresses in a /31 point-to-point link used?
Back
A /31 has two addresses for point-to-point link endpoints; neither is treated as the conventional network or directed-broadcast address.
10
Front
How do you determine a subnet's broadcast address?
Back
Set all host bits to 1.
11
Front
For /26, what is the last-octet block size?
Back
The /26 mask is 255.255.255.192, giving a last-octet block size of 256−192=64.
12
Front
What is the broadcast address for 192.168.10.77/26?
Back
The /26 subnet containing 192.168.10.77 ends at 192.168.10.127.
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