**Contents**show

## How many subnets and hosts per subnet can you get from?

255.255. 240.0 is a /20 subnet mask, therefore there are 4 borrowed bits (from the 3rd octet). Number of hosts on each subnetwork = (2 to the power 4) – 2 (i.e. 4 bits in host portion of address), which gives **14**.

## How many hosts can you have per subnet?

Hosts per subnet: 3 bits are left to identify the host therefore the total number of hosts per subnet is 2 to the power of 3 minus 2 (1 address for subnet address and another one for the broadcast address)(2^3-2) which equals to **6 hosts per subnet**.

## How many subnets 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 subnets and hosts per subnet can you get from the network 192?

Because 192 is 2 bits on (11000000), the answer is 2^{2} = **4 subnets**. How many hosts per subnet? We have 6 host bits off (11000000), so the equation is 2^{6} – 2 = 62 hosts.

## How many hosts are in a 24 subnet?

Subnet Mask Cheat Sheet

Addresses | Hosts | |
---|---|---|

/ 26 | 64 | 62 |

/ 25 | 128 | 126 |

/ 24 | 256 |
254 |

/ 23 | 512 | 510 |

## How many host addresses are available?

Answers Explanation & Hints:

Subtracting the network and broadcast addresses leaves **62 usable** host addresses.

## How many hosts are in a 8?

In this example, there are 8 network bits because the address is in a Class A network, 8.0. 0.0. There are **16 host** bits because, when you convert 255.255.

## How many host addresses are available on the 128 network?

Quick Hits: IP Networking Chart

CIDR Block | Supernet Mask | Number of Class C Addresses |
---|---|---|

/15 | 255.254.0.0 | 512 |

/16 | 255.255.0.0 | 256 |

/17 | 255.255.128.0 | 128 |

/18 | 255.255.192.0 | 64 |

## 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 do you calculate the number of subnets?

Calculate the subnet bits by **looking at the final 8-bit binary word of the 32-bit binary subnet mask**. If the final 8-bit binary word is 10000000, then there is one subnet bit and therefore 25 mask bits. If it is 11000000, then there are two subnet bits and therefore 26 mask bits.

## How many subnetworks and hosts are available per subnet If you apply a 29?

Subnet Cheat Sheet – 24 Subnet Mask, 30, 26, 27, 29, and other IP Address CIDR Network References

CIDR | Subnet mask | # of IP addresses |
---|---|---|

/31 | 255.255.255.254 | 2 |

/30 | 255.255.255.252 | 4 |

/29 | 255.255.255.248 | 8 |

/28 | 255.255.255.240 | 16 |

## What is the subnet for host ID 172.16 3.65 23?

What is the subnet for host ID 172.16. 3.65/23? A /23 is **255.255.** **254.0**.