CompTIA Network+ (N10-007) — Question 446

An ARP request is broadcasted and sends the following request:
"Who is 192.168.1.200? Tell 192.168.1.55"
At which of the following layers of the OSI model does this request operate?

Answer options

• A. Application
• B. Data link
• C. Transport
• D. Network E: Session

Correct answer: B

Explanation

The correct answer is B, as ARP operates at the Data link layer, facilitating the mapping of IP addresses to MAC addresses. Options A, C, D, and E pertain to different functions such as higher-level protocols and do not directly relate to the operation of ARP.