Chapter 11 - Perspectives on IPv4 Subnetting Flashcards
True or False. Addresses in the same subnet are separated by a router.
False. Addresses in the same subnet are NOT separated by a router.
Addresses in different subnets are separated by at least one of these.
Routers.
You should plan to use one subnet for every one of these. (4 items)
1) VLAN
2) Point-to-point serial link
3) Ethernet emulation WAN link (EoMPLS)
4) Frame Relay PVC
How many bits are in an IP address?
32 Bits
What are the 3 parts of an IP address?
Network, Subnet, Host
What defines the size of the subnet?
The subnet mask.
What is VLSM?
Variable length subnet masks
What technology allows different companies to reuse the same IP networks?
NAT - network address translation
The Internet community worked hard during the 1990’s to solve the problem of exhausting the public IP address space by coming up with what 3 different solutions?
1) A new version of IP (IPv6), with much larger addresses (128 bit)
2) Assigning a subnet of a public IP network to each company, instead of an entire public IP network; to reduce waste
3) Network Address Translation (NAT), which allows the use of private IP networks.
What is the Class A IP private network?
10.0.0.0
What is the range of Class B private networks?
172.16.0.0 through 172.31.0.0
What is the range of Class C private networks?
192.168.0.0 through 192.168.255.0
How many bits are there in the network and host portions of a Class A network?
Network = 8 and Host = 24
How many bits are there in the network and host portions of a Class B network?
Network = 16 and Host = 16
How many bits are there in the network and host portions of a Class C network?
Network = 24 and Host = 8
