Computer Hacking Forensic Investigator (CHFI v10) — Question 481

How many possible sequence number combinations are there in TCP/IP protocol?

Answer options

• A. 1 billion
• B. 320 billion
• C. 4 billion
• D. 32 million

Correct answer: C

Explanation

The correct answer is C, as the TCP sequence number field is 32 bits in size, which allows for 2^32 unique combinations, equating to 4 billion. The other options do not reflect the correct calculation based on the bit size of the sequence number field.