TELECOMMUNICATIONS SYSTEMS
COMMUNICATION WIRELESS COMPUTING DEVICES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Class A
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Class B
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Class C
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Class D
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Detailed explanation-1: -Class C networks use a default subnet mask of 255.255.255.0 and have 192-223 as their first octet. The address 192.168.123.132 is a class C address. Its first octet is 192, which is between 192 and 223, inclusive.
Detailed explanation-2: -Class A address can contain the maximum number of 224 (16, 777, 216) host numbers. Class B addresses contain the maximum number of 216 (65, 536) host numbers. And class C contains a maximum number of 28 (256) host numbers.
Detailed explanation-3: -Class B IP addresses, where the 1st two bits are 10, are in the range of 128.0. 0.0 to 191.255. 255.255. This class is for medium networks and has 16 bits for network and 16 bits for hosts.
Detailed explanation-4: -The default subnet mask for Class A IP address is 255.0. 0.0 which implies that Class A addressing can have 126 networks (27-2) and 16777214 hosts (224-2).