TELECOMMUNICATIONS SYSTEMS
COMMUNICATION WIRELESS COMPUTING DEVICES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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First
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Second
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Third
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Fourth
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Detailed explanation-1: -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.
Detailed explanation-2: -The value of the first octet determines the class. IP addresses from the first three classes (A, B and C) can be used for host addresses. The other two classes are used for other purposes – class D for multicast and class E for experimental purposes.
Detailed explanation-3: -The first 24 bits (the first three octets) identify the network and the remaining 8 bits indicate the host within the network. An example of a Class C IP address is 200.168. 212.226 where “200.168. 212” identifies the network and “226” identifies the host on that network.
Detailed explanation-4: -The first two octets ( 16 bits) identifies a network administered by the Comcast (an Internet Service Provider). The last two octets (the final 16 bits) identifies a home computer on that Comcast network. An illustration of the IP address space. Multiple networks are shown with different 2-octet strings above them.
Detailed explanation-5: -The first octet of a Class B address is in the range 128 to 191.