HPE Aruba Certified Network Security Professional (ACNSP) — Question 55

Which field in the IPv4 header indicates whether the IP packet carries TCP or UDP traffic?

Answer options

• A. Protocol
• B. IHL
• C. TTL
• D. Identification

Correct answer: A

Explanation

The correct answer is 'Protocol', as this field specifies the transport layer protocol used in the packet, such as TCP or UDP. The 'IHL' field indicates the length of the header, 'TTL' stands for Time to Live and is used for packet lifespan, and 'Identification' is used for fragment identification in the case of fragmentation.