NETWORK LAYER
NETWORK LAYER PROTOCOLS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What is the maximum header size of an IP packet?
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32 bits
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64 Bits
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16 Bits
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48 Bits
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Explanation:
Detailed explanation-1: -Length-A 4-bit field containing the length of the IP header in 32-bit increments. The minimum length of an IP header is 20 bytes, or five 32-bit increments. The maximum length of an IP header is 24 bytes, or six 32-bit increments.
Detailed explanation-2: -The minimum length of an IP header is 20 bytes so with 32 bit increments, you would see value of 5 here. The maximum value we can create with 4 bits is 15 so with 32 bit increments, that would be a header length of 60 bytes. This field is also called the Internet Header Length (IHL).
Detailed explanation-3: -The IHL field contains the size of the IPv4 header; it has 4 bits that specify the number of 32-bit words in the header.
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