What Is The Default Subnet Mask For The Ip Address 203.111.3.3?
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What is the default subnet mask for the IP address 203.111.3.3?
Answer: The default subnet mask for the IP address 203.111.3.3 is 255.255.255.0. This is the default subnet mask for class C, also represented by A.B.C/24, in which /24 is the 24 bits subnet mask.
What do you know about the IP classes?
IP is the main protocol when the two devices communicate with each other. Its hierarchy has different classes which are used in many scenarios according to the host requirement per network. There are five classes and each of them is identified by the first octet of the given IP address. The internet corporation for name and number assigning assigned the IP addresses as well.
For example:
11000011.10101010.1000000.00000001
In the given example the first octet is 11000011 and so on. The host network and the number in each class are calculated with the formula:
Networks number = 2^network_bits.
Number of the host = 2^host_bits -2.
During the calculation of the host address, 2 ip addresses are lessened because the first IP address is the number of networks and the last octet is for the IP broadcasting. The classes of the IP addresses are:
Class A address:
In the class first bit of the octet remains 0 in the address. The octet range of class A is 1 – 127. for example:
00000001 -01111111
Class A address starts from 1. x.x.x to 126. x.x.x while the IP range 127 is fixed for the loopback of IP addresses, and the default IP address for class A is 255.0.0.0 which is only applied on addressing of Class A and it describes that A class can only have 126 networks (27-2) and 16777214 hosts (224-2).
Structure of the class A is: 0NNNNNNN.HHHHHHHH. HHHHHHHH.HHHHHHHH
Class B:
The IP address of Class B contains the first two bits which are present in the first octet set 10.for example:
10000000 -10000000
128 to 191
Class B range for IP address is 128.0.x.x to 191. 255. x.x. the subnet mask is 255.255.x.x which is set as default. The network address in class B is 16384 (214) while the host addresses are 65534 (216-2).
The structure for the Class B: 10NNNNNN.NNNNNNNN. HHHHHHHH.HHHHHHHH.
Class C address:
The octet first 3 bits of class C start with 110. for example, 11000000 -1101111 which are 192-223 in range. Class C range starts from 192.0.0.x to 223.255.255.x. and the subnet mask which is set as default is 255.255.255.x.
Class C Network address is 2097152 (221) and Host addresses is 254 (28-2).
Class C IP address structure is: 110NNNNN.NNNNNNNN. NNNNNNNN.HHHHHHHH.
Class D:
The four bits of class D IP addresses are set 1110 and the range is 11100000 – 11100000 and it is 224 -239. the range for Class D is 224.0.0.0 to 239.255.255. 255. this class is especially for multicasting, that is the reason the host address is not extracted from its IP address. it has no subnet mask.
Class E:
This is for the experiment study no other reason fits in it. The range for Class E is 240.0.0.0 to 255.255.255.254. the subnet mask is also absent in this class.