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How many valid host addresses are available on class B network that is not subnetted?
65,534
Assuming no subnetting what are valid Class B host addresses?
A classful class B network has a network range of 128 - 191. For host addresses, anything that is legal for an IP address in the last 2 octets would be a valid host address for a class B with no subnets.
Which IP addresses are defined by RFC 1918 as private addresses?
"The RFC 1918 private network numbers are 10.0.0.0, Class Bs between 172.16.0.0 and 172.31.0.0 inclusive, and all Class C networks that begin with 192.168. All addresses that begin with 127 are reserved, but not as valid private IP addresses."
What is the maximum number of bits that can be borrowed with class b?
The maximum number of host bits that can be borrowed from a class A address is 22 (technically you could borrow 23 but the resulting network would be useless). A class A address uses 8 bits for its network address and 24 bits for its host addresses. Class A uses a subnet mask of 255.0.0.0 You can only borrow 22 bits (instead of 24) because a valid network requires 4 addresses: A network address, two host addresses and a broadcast address. These networks would result in 30 bits used for the network address and 2 bits used for the host addresses. These networks use a subnet mask of 255.255.255.252
How many valid IP addresses can you use in a class C network address if you are using 24 bits for the default subnet mask?
You can use up to 254 devices in this case.
Why is it unlickely that you will find the IP address 192.168.250.10 on the Internet?
It is unlikely that you will find the IP address 192.168.250.10 on the internet because the .10 represents the number of host connected to an individual network. Also, IEEE recommends that the following IP addresses be used for private networks: 10.0.0.0 through 10.255.255.255 Class A 172.16.0.0 through 172.31.255.255 Class B 192.168.0.0 through 192.168.255.255 Class C
Is 191.76.43.10 a valid routable class C address?
No, because the range for class C addresses is 192 - 223, and the first octet of the address 191.76.43.10 is a class B address.
Is 255.255.0.255 a valid Class A address?
No, 255.255.0.255 is not a valid Class A address. In fact, it is a broadcast address used in Class B networks. Class A addresses range from 1.0.0.0 to 126.255.255.255, and the highest address in this range is 126.255.255.255. Additionally, the address 255.255.255.255 is reserved for the limited broadcast address, not for any specific class.
How many host can you have for 10.20.50.0 subnet mask 255.255.255.0?
253. Valid addresses would be from 10.20.50.1 to 10.20.50.254 10.20.50.0 is the network address. 10.20.50.255 is the network broadcast address. Any network with a subnet mask of 255.255.255.0 will support 253 hosts.
How many ip addresses are there in a class A?
There are 2^24 host in class A but (2^24)-2 hosts are valid since the first and last address are reserved .
What is the valid IP host for the network ID 190.254.0.0?
If you aren't subnetting, then the host range for this network would be: 190.254.0.0 - 190.254.255.255 The above shows the IP address range, but not all addresses would be usable (mostly the first and the last addresses would probably be not assignable to a device).
Why do you have to activate a DHCP scope?
A DHCP (Dynamic Host Configuration Protocol) scope defines the valid pool of IP addresses that can be assigned to the network. You need to activate a DHCP scope so that the IP addresses that are issued (or leased) to the client devices will be compatible with the network configuration. If a client is issued an invalid IP address it will not be able to communicate on the network.
