CompTIA Network+ N10-006 Q772

A network technician cannot connect to a remote RDP host. The application issues the message Cannot reach
The technician then attempts to ping the DNS address, and the following information is displayed:

At which if the following layers of the OSI model does the issue exist?

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

Correct Answer: D