Question

An IP packet arrives at a router with the first eight bits as 01001000. How many bytes are there in the OPTIONS field?​

Answer 1

Answer:

12 bytes are there in OPTIONS field

Answer 2

Answer:

12 bits  are there in the OPTIONS field

Explanation:

Options are used for debugging and network testing

Options have TLV format. TLV means Type – length – Value

Code – 8 bit

Length - 8 bits

Data – Varies

Copy – 1 bit

Class – 2 bits

Number – 5 bits

Options can be single byte or multiple bytes. A Single byte has two types, one is No operation, next one is End of option.

A multi-byte has 4 types. They are Record route, Strict source route, Loose source route, Timestamp.