Question

If the IP header is 192 bytes long what will be the value of the HLEN field? A. 4
B.6
C.32
D. 192

Answer 1

Answer:

48 bytes (None of the given above)

Explanation:

The Question is pertaining to Transmission Control Protocol and Internet Protocol.

Source address, destination address, Version of IP is the information that are normally stored in IP header.

HLEN: This is a protocol and has its value as 5

Total headers = 20 bytes which is obtained using 5 * 4 = 20

Since IP header = 192 bytes, HLEN = ip header / 4 --> 192 / 4 = 48 bytes.

Answer 2

Value of the HLEN field is 6.

Option (B)

Explanation:

• 'HLEN (Header length)': This field determines the length of the header of the datagram in a '4-byte word'. The value must be 'multiplied by 4' in order to have a number of bytes. It is a '4-bit value'.
• 'Header Length' is a 'four-bit field' that indicates, as the 'name implies', the length of the 'IP header in 32-bit words'.
• When the 'IP header' is '192 bits long', then the 'value of the HLEN field' be equal to '192/32 = 6'.

To know more

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