Table of Contents
How many host addresses are available?
Answers Explanation & Hints: Subtracting the network and broadcast addresses leaves 62 usable host addresses.
How many usable host addresses are available on an ipv4 subnet that is configured with a 28 mask?
Subnet Cheat Sheet – 24 Subnet Mask, 30, 26, 27, 29, and other IP Address CIDR Network References
| CIDR | Subnet mask | # of usable IP addresses |
|---|---|---|
| /31 | 255.255.255.254 | 2* |
| /30 | 255.255.255.252 | 2 |
| /29 | 255.255.255.248 | 6 |
| /28 | 255.255.255.240 | 14 |
How many host addresses are available on the 128 network?
Table 2-1 IP Addresses Available to Internet Hosts
| Address Class | First Octet Range | Number of Hosts Per Network |
|---|---|---|
| Class A | 0 to 126 | 16,777,214 |
| Class B | 128 to 191 | 65,534 |
| Class C | 192 to 223 | 254 |
How many usable host addresses are there in the subnet 192.168 1.32 27?
The 192.168. 1.32/27 sub-network has 30 valid host addresses from 192.168.
How many usable host addresses are available on an IPv4 subnet that is configured with a 26 mask?
Explanation: When a /26 mask is used, 6 bits are used as host bits. With 6 bits, 64 addresses are possible, but one address is for the subnet number and one address is for a broadcast. This leaves 62 addresses that can be assigned to network devices.
How many usable IP addresses are available on the?
255.224. This leaves 5 host bits. With 5 host bits, 32 IP addresses are possible, but one address represents the subnet number and one address represents the broadcast address. Thus, 30 addresses can then be used to assign to network devices.
How many subnetworks and hosts are available per subnet If you apply a 27?
Class A
| Network Bits | Subnet Mask | Number of Hosts |
|---|---|---|
| /27 | 255.255.255.224 | 30 |
| /28 | 255.255.255.240 | 14 |
| /29 | 255.255.255.248 | 6 |
| /30 | 255.255.255.252 | 2 |
How many addresses are in Class A?
IP address classes
| Class | Leading bits | Total addresses in class |
|---|---|---|
| Class A | 0 | 2,147,483,648 (231) |
| Class B | 10 | 1,073,741,824 (230) |
| Class C | 110 | 536,870,912 (229) |
| Class D (multicast) | 1110 | 268,435,456 (228) |
What is the prefix for the host address 2001 DB8?
Explanation: The network portion, or prefix, of an IPv6 address is identified through the prefix length. A /64 prefix length indicates that the first 64 bits of the IPv6 address is the network portion. Hence the prefix is 2001:DB8:BC15:A.
How many host addresses are available on a 28 network?
Subnet Mask Cheat Sheet
| Addresses | Hosts | |
|---|---|---|
| / 28 | 16 | 14 |
| / 27 | 32 | 30 |
| / 26 | 64 | 62 |
| / 25 | 128 | 126 |
How many valid host addresses are available on an IPv4 subnet?
With 6 bits, 64 addresses are possible, but one address is for the subnet number and one address is for a broadcast. This leaves 62 addresses that can be assigned to network devices.
How many usable host addresses does the 26 subnet have?
Subnet Mask Cheat Sheet
| Addresses | Hosts | |
|---|---|---|
| / 26 | 64 | 62 |
| / 25 | 128 | 126 |
| / 24 | 256 | 254 |
| / 23 | 512 | 510 |