CompTIA Network+ (N10-008) — Question 567

Which of the following OSI model layers are responsible for handling packets from the sources to the destination and checking for errors? (Choose two.)

Answer options

• A. Physical
• B. Session
• C. Data link
• D. Network
• E. Presentation
• F. Application

Correct answer: C, D

Explanation

The Data link layer (C) is responsible for node-to-node data transfer and error detection, while the Network layer (D) manages packet forwarding and routing. The other layers, such as Physical (A), Session (B), Presentation (E), and Application (F), do not specifically handle packet transmission or error checking.