What Are The 3 Classes Of Subnet Mask?

What are Class A networks?

Class A Class A comprises networks 1.0.

0.0 through 127.0.


The network number is contained in the first octet.

The last three octets provide for a 24 bit (32 – 8) host part, allowing 256 x 256 x 256 – 2 = 16,777,214 hosts for each A class..

What is a Class C network used for?

Classes of IP AddressesClassPurposeAThese are designed to be used in very large companies like Google.BThese are designed to be used in medium-sized companiesCThey designed to be used in small-sized companies.DThey are not used in the public sector, instead being reserved for multicast addressing1 more row

What are Class A IP addresses?

Class A IP addresses support up to 16 million hosts (hosts are devices that connect to a network (computers, servers, switches, routers, printers…etc.) and a Class A network can be divided into 128 different networks. Class B IP addresses are used for medium and large-sized networks in enterprises and organizations.

What is 16 subnet mask?

The last three octets of a Class A subnet mask are used to address hosts on a LAN; the 24 bits you can manipulate however you wish. … It saves you from typing, or pronouncing, the whole mask. For example, /8 means 255.0. 0.0, /16 is 255.255. 0.0, and /24 is 255.255.

Is subnet mask always 255?

hmm Almost every small network uses a subnet mask of 255.255. 255.0 and this allows for 255 IP addresses on that network. A subnet mask is a binary mask made up of all 1, contiguous.

What is subnet mask classes?

You can identify the class of an IP address by looking at its first octet. Following are the ranges of Class A, B, and C Internet addresses, each with an example address: Class A networks use a default subnet mask of 255.0. 0.0 and have 0-127 as their first octet. The address 10.52.

What is the subnet mask for 192.168 1.0 24?

IP Subnet CalculatorCIDR blockIP range (network – broadcast)Subnet Mask192.168.1.0/25192.168.1.0 – – – – more rows

How do you subnet?

255.248 or /29.STEP 1: Convert to Binary.STEP 2: Calculate the Subnet Address. To calculate the IP Address Subnet you need to perform a bit-wise AND operation (1+1=1, 1+0 or 0+1 =0, 0+0=0) on the host IP address and subnet mask. … STEP 3: Find Host Range. … STEP 4: Calculate the Total Number of Subnets and Hosts Per Subnet.

What is my IP and subnet mask?

Use the IPCONFIG Command Type “ipconfig” at the prompt and press “Enter.” This command displays all network interfaces and their configurations, including IP addresses, subnet masks and default gateway.

What is a subnet ID?

The second part of a TCP/IP address that defines the subnetwork in which the device resides. The subnet ID number is shared with the host ID. See subnet mask and subnet mask tables.

How many types of subnet mask are there?

What is Subnet Mask, Types of Subnet MaskNetwork classmaskA1-126255.0.0.0B128-191255.255.0.0C192-223255.255.255.0Mar 7, 2014

How do you find the subnet mask?

In the Windows search fields, type cmd, to open command prompt.Press Enter.Type ipconfig/all press Enter.Find your network settings.Your PC’s IP address and your network Subnet Mask and Gateway will be listed.

How many subnets are in a 16?

Class ANetwork BitsSubnet MaskNumber of Subnets/16255.255.0.0256 (254)/17255.255.128.0512 (510)/18255.255.192.01024 (1022)/19255.255.224.02048 (2046)19 more rows

What is class ABC IP?

TCP/IP defines five classes of IP addresses: class A, B, C, D, and E. Each class has a range of valid IP addresses. … For the IP addresses from Class A, the first 8 bits (the first decimal number) represent the network part, while the remaining 24 bits represent the host part.

What are the 3 major classes of an IP network?

Currently there are three classes of TCP/IP networks. Each class uses the 32-bit IP address space differently, providing more or fewer bits for the network part of the address. These classes are class A, class B, and class C.