Flashcards
Subnetworks NET+ M1
Cards in this deck (11)
- 1Subnetsubset of a network
segment a larger network - 2Subnet Maska number that distinguishes the network from the host portions of the address
32 bits
1s indicate network portion
0s indicate host
for internal network use
security and/or management - 3Classful Class ARanges 0.0.0.1-127.255.255.255
Default Subnet Mask 255.0.0.0
# of Networks 126
# of Hosts per Net 16,777,214 - 4Classful Class BRanges 128.0.0.1-191.255.255.255
Default Subnet Mask 255.255.0.0
# of Networks 16,384
# of Hosts per Net 65,534 - 5Classful Class CRanges 192.0.0.1-223.255.255.255
Default Subnet Mask 255.255.255.0
# of Networks 2,097,152
# of Hosts per Net 254 - 6Classful Class DRanges 224.0.0.1-239.255.255.255
Default Subnet Mask N/A
# of Networks N/A
# of Hosts per Net N/A
multicast communications, used mostly by multi-media & network resources - 7Classful Class ERanges 240.0.0.1-255.255.255.255
Default Subnet Mask N/A
# of Networks N/A
# of Hosts per Net N/A
reserved for experimental purposes only - 8ANDingitem A us true (on) AND item B is true (on)
0 = false or off 1 = true or on
0 AND 0 = 0 1 AND 0 = 0
0 AND 1 = 0 1 AND 1 = 1
ANDing process removes the host portion of IP address to reveal network ID - 9Problems with Classful IPv4-not flexible for businesses
-routing table issues on internet
-waste of unused addresses
*temp fixes: NAT & VLSM - 10CIDRclassless inter-domain routing
used to identify number of bits used in network ID
remaining bits for host ID can then be calculated - 11VLSMvariable-length subnet masking
any number of bits can be used to mask the network from the hosts
allows for more efficient use of private IP addresses
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- CompTIA Information Technology (Network +) Flashcards on Subnetworks NET+ M1, created by Lyndsay Badding on 02/02/2024.
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- Lyndsay Badding
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