200-201 Question 126
Single answerA cybersecurity analyst is reviewing network traffic using a packet capture tool. They observe that data is being transmitted with multiple headers, including IP, TCP, and HTTP headers. Which concept does this scenario illustrate?
- A
Encapsulation
- B
Encryption
- C
Segmentation
- D
Decapsulation
Show answer and explanation
Correct answer: A
Explanation
The scenario describes the addition of multiple headers (IP, TCP, HTTP) to data, which is a hallmark of encapsulation. Encapsulation is a fundamental concept in networking that ensures data is properly formatted and routed as it moves through different layers of the OSI or TCP/IP model. Understanding encapsulation is critical for analyzing and troubleshooting network traffic.
- A. Correct.
Encapsulation refers to the process of adding headers (and sometimes trailers) to data as it moves through the layers of the OSI or TCP/IP model. In this scenario, the observed headers illustrate encapsulation.
- B. Incorrect.
Encryption involves converting data into a secure format to prevent unauthorized access. While encryption may occur in network traffic, it is not the process being described here.
- C. Incorrect.
Segmentation refers to breaking down data into smaller packets for transmission. Although segmentation is part of data transmission, it does not involve adding headers to encapsulate data.
- D. Incorrect.
Decapsulation is the reverse process of encapsulation, where headers are removed as data moves up the OSI or TCP/IP model. This does not apply to the scenario described.